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C 90 00
AQP 42 2863 6 Group P32
THREE-PHASE ACTIVE AND REACTIVE ELECTRIC ENERGY METER CE 304
Operating manual .411152.064 OM
Software version v.1.X Manufacturer: JSC"Concern Energomera"
415- Lenin Street, 355029 Stavropol, Russia, phone (8652) 56-67-21,
35-67-45; fax (8652) 56-40-28, 36-44-17.
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CONTENTS 1 DEFINITIONS, DESIGNATIONS AND ABBREVIATIONS.. 3 2
SAFETY REQUIREMENTS 4 3 METER AND ITS OPERATION DESCRIPTION 5 3.1
Application 5 3.2 Ambient environment... 11 3.3 Meter
nomenclature.. 12 3.4 Specifications 12 3.5 Meter arrangement and
operation. 16 4 METER PRE-OPERATION 27 4.1 Unpacking. 27 4.2
Pre-operation. 27 4.3 Installation procedure 27 4.4 Connection
diagrams. 27 4.5 Power source replacement. 31 4.6 Software setup 32
5 OPERATION PROCEDURE... 48 5.1 LCD indication of calculating
machine channels data.. 50 5.2 Data scrolling in the manual mode 51
5.3 Information messages 60 5.4 Interface data exchange structure..
64 6 METER VERIFICATION 65 7 MAINTANENANCE..... 65 8 SERVICE 66 9
STORAGE AND TRANSPORTATION.. 67 10 PACKAGE 67 11 MARKING AND
SEALING... 68 ANNEX A Accepted value limits of error. 69 ANNEX B
Overall dimensions... 85 ANNEX C Diagram of meter connection with
power system 86 ANNEX D Diagram of interface meter CE 304 with PC
COM-port.. 89 ANNEX E Data formats for exchange via interface.. 93
ANNEX F Type and manner of pressing buttons LCD indication switch
structure.. 115
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This operating manual (hereinafter - OM) covers description of
three phase active and reactive energy meter CE304 (hereinafter
Meter) arrangement, principle of operation, pre-operation and other
information essential for its proper usage.
It is also necessary to go by the technical passport .411152.064
TP (hereinafter - TP) while studying the meter operation.
Only persons specially trained for working at voltage up to 1000
V and studied this operating manual are allowed for the meter
maintenance.
1. DEFINITIONS, DESIGNATIONS AND ABBREVIATIONS.
1.1 This operating manual contains the following abbreviations:
AMR automatic meter reading; TS technology software; ADC
analogue-to-digital converter; MC microcontroller; PM power module;
BPS back-up power source; LCD liquid-crystal display; LI light
indicators of active and reactive energy; Kb keyboard; OP optical
port; TM (TM1TM6) pulse (digital) outputs; PI (PI1PI4) pulse
inputs; RTC real time clock; FLASH nonvolatile bulk storage device;
FRAM nonvolatile RAM; COM1, COM2 interfaces 1, 2; DAU
data-acquisition unit. 2 SAFETY REQUIREMENTS 2.1 The meter meets
GOST 22261-94 and GOST R 51350-99 safety requirements. 2.2
Electrical shock protection method complies with class II of GOST R
51350-99. 2.3 Insulation between all the current and voltage
circuits and load control relay finish
elements connected together and the earth endures 1 minute 50Hz
frequency 4kV AC voltage. While testing, electric test output unit
terminals, interface circuits, pulse inputs, back-up power source
input should be connected with the earth (the earth conducting foil
film, encasing the meter and connected with the flat conductive
surface, on which the meter base is mounted).
Insulation between current circuits connected together and
voltage circuits connected together; all the current and voltage
circuits and load control relay finish elements connected together;
electric test output unit terminals; electric test output unit
terminals and pulse inputs endures 1 min. 50Hz frequency 4kV AC
voltage.
2.4 Insulation between each current circuit and all the other
meter circuits connected with the earth; each voltage circuit and
all the other meter circuits including voltage circuit common leg
connected with the earth; load control relay finish elements and
all the other meter circuits connected with the earth, endures 6kV
pulse voltage influence.
Insulation between all the current and voltage circuits and load
control outputs connected together and earth endures 6kV pulse
voltage influence. During the test the electric test output unit
terminals should be connected with the earth.
2.5 Insulation resistance between the meter case and circuits is
not less than: 20MOhm at Cl. 3.1.7;
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7 MOhm at ambient air temperature (402)C and relative humidity
93% 2.6 Meter installation and operation shall be carried out in
accordance with the working
power system safety standards. 2.7 Do not put or hang any
foreign objects on the meter, avoid strokes. 3 METER AND ITS
OPERATION DESCRIPTION 3.1 Application The meter is three-phase,
multi-purpose, transformer or direct connection (depending on
modification) and designed for active and reactive electric
energy, active, reactive and apparent power, energy loss, voltage
frequency, phase-angle, voltage and current RMS values in
three-phase four-wire AC circuits measurement and multi-rate
metering organization. The kind of energy and power measured is
specified by the meter configuration.
The meter may be used in AMR system for data transmission to the
electric energy control, metering and distribution dispatch center.
For establishing AMR systems interfaces (pulse outputs, EIA232,
EIA485) may be used.
Measurement results are drawn by the meter mother board
microprocessor circuit processing and calculating the voltage and
current incomers. Mezzanine boards installation, depending on the
modification, allows extending the meter capabilities. The data
acquired and other information is displayed on the LCD.
The meter has an electronic register that accomplishes,
depending on the current and voltage transformation ratios set,
metering of active, reactive electric energy, energy loss in one or
two directions (kWh, MWh, GWh, kVArh, MVArh, GVArh
correspondingly).
The time of the variation in the register indication complies
with GOST R 52322-2005 (GOST R 52323-2005), GOST R 52320-2005 and
GOST 26035-83, IEC 62053-23:2003 requirements.
The meter provides, in the presence of the authorized access,
setting all the energy parameters to zero.
The meter, in the absence of external supply voltage and back-up
power voltage supplied, operates in the indication mode and
provides data exchange with external acquisition and transmission
units via optical port (IrDA 1.0) and interfaces.
The technology software Device administration (hereinafter - DA)
application allows creating and modifying the programs for the
appropriate meter configuration, programming, diagnostic data
reading, signal journaling and performing other tasks. PC
connection with the meter via optical port at the place of
installation may be available through the sensing head.
The meter has the ability to register profiles with different
time intervals for power averaging and energy accumulation in the
set interval (load profiles).
3.1.1 Meter functionality - The meter allows measuring 12 energy
(power) types per phase:
active energy (power) in both directions (Ai, Ae); four quadrant
(R1, R2, R3, R4) reactive energy (power); energy loss in both
directions (Li, Le); physical unit-counting input meters values
(11, 12,13, 14). - The meter measures and rates energies (powers)
via six calculation channels. Each
channel energy (power) type is specified by the channel
configuration. The calculation channel energy (power) is the sum of
the energy quantity of all the energy
(power) types specified by the channel configuration. Energy
accumulation per tariff and in total (with progressive total, for a
month, for a day),
maximum powers fixation, power overrun determination, load
profile registration are accomplished via all the six calculation
channels.
The calculation channels possible configurations are given in
Table 3.1
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To avoid incorrect data generation, it is allowed to combine in
calculation channels only energies (powers) identical in type.
Recommended combinations of calculated energies (powers) in the
channel are given in Table 3.2
Table 3.1 Measured and stored data Calculation channel
unidirectional meter bidirectional meter Channel 1 Ai+Ae Ai
Channel 2 Ae Channel 3 Channel 4 Channel 5 Channel 6
Any from Table 3.2 Any from Table 3.2
Table 3.2
Active energy import Designation Active energy export Ai Active
energy export Ae Total active energy Ai+Ae 1 quadrant reactive
energy R1 2 quadrant reactive energy R2 3 quadrant reactive energy
R3 4 quadrant reactive energy R4 Reactive energy import R1+R2
Reactive energy export R3+R4 Inductive reactive energy R1+R3
Capacity reactive energy R2+R4 Reactive energy for active energy
import R1+R4 Reactive energy for active energy export R2+R3 Total
reactive energy R1+R2+R3+R4 Energy loss for active energy import Li
Energy loss for active energy export Le Total energy loss Li+Le
Physical quantity of unit-counting input 1 I1 Physical quantity of
unit-counting input 2 I2 Physical quantity of unit-counting input 3
I3 Physical quantity of unit-counting input 4 I4
Notes 1. Identical physical quantities values may be combined in
one calculation channel; 2. Energies (powers) telemetric pulses
connected with external electric energy
meters unit-counting inputs may be combined in one calculation
channel or added to identical in physics.
3.1.2 Meter modifications designation Meter designation
structure is given in Picture 3.1
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CE 304 X XXX-XXXXXX Extra modifications:
Y Bidirectional Unidirectional Impulse inputs No impulse
inputs
Q2 control relay for alternating voltage Interface devices:
EIA485 EIA 232
Optical communication ports: I IrD 1.0 J Optical interface
Nominal, basic (maximum) current:
0 1(1.5) A Transformer connection 2 5(7.5) A Transformer
connection 4 5(50) A Direct connection 8 10(100) A Direct
connection Nominal voltage:
0 57.7 V 3 220 V
Accuracy class per active/reactive electric energy: 4 0.2S/0.5 6
0.5S/1 8 1/2 9 2/2 Case type: S3X board mounting
Picture 3.1 Meter designation structure 3.1.2.1 Basic
modifications Basic modifications are accuracy class, type of
connection, maximum and nominal or
basic current relationship meter versions. Accuracy class meter
versions depending on nominal voltage, nominal, basic (maximum)
current with appropriate meter constant values are given in
Table 3.3 Table 3.3 Meter designation Accuracy
class Nominal
voltage, V Nominal, basic (maximum) current, A
Meter constant imp/kWh, imp/kVArh
Point position
CE 304 X 400-XXXXXX 0.2S/0.5 57.7 1 (1.5) 50000 000.0000 CE 304
X 402-XXXXXX 0.2S/0.5 57.7 5 (7.5) 10000 0000.000 CE 304 X
432-XXXXXX 0.2S/0.5 220 5 (7.5) 4000 0000.000 CE 304 X 600-XXXXXX
0.5S/1 57.7 1 (1.5) 50000 000.0000 CE 304 X 602-XXXXXX 0.5S/1 57.7
5 (7.5) 10000 0000.000 CE 304 X 632-XXXXXX 0.5S/1 220 5 (7.5) 4000
0000.000 CE 304 X 800-XXXXXX 1/2 57.7 1 (1.5) 50000 000.0000 CE 304
X 802-XXXXXX 1/2 57.7 5 (7.5) 10000 0000.000 CE 304 X 834-XXXXXX
1/2 220 5 (50) 800 00000.00 CE 304 X 838-XXXXXX 1/2 220 10 (100)
400 00000.00 CE 304 X 934-XXXXXX 2/2 220 5 (50) 800 00000.00
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CE 304 X 938-XXXXXX 2/2 220 10 (100) 400 00000.00 3.1.2.2 Extra
modifications
Extra modifications bidirectional, unidirectional meter versions
with pulse outputs and load control relay , optical interface or
IrDA 1.0, pulse input modules, one basic (COM1) or two basic (COM
1) and extra (COM 2) interface module.
Meter versions depending on interfaces applied are given in
Table 3.4. Table 3.4
Meter designation Interface module EIA485 EIA232 basic
COM1 extra COM 2
basic COM 1
extra COM 2
CE 304 X XXX-XAXXX + - - - CE 304 X XXX-XAAXXX + + - - CE 304 X
XXX-XAEXXX + - - + CE 304 X XXX-XEAXXX - + + - CE 304 X XXX-XEXXX -
- + - CE 304 X XXX-XEEXXX - - + + Note + with interface; - no
interface. 3.1.2.3 Meter designation example
While making an order, the necessary meter modification is
identified by the designation structure given in Picture 3.1 and in
accordance with Clauses 3.1.2.1, 3.1.2.2.
Meter designation example meter for board mounting, active
energy accuracy class 0.5S and reactive energy 1, with 57.7 V
nominal voltage, 1A nominal and 1.5 A maximum current, with optical
interface, interface modules EIA485/EIA232, with alternating
voltage load control relay, pulse inputs, unidirectional, is
designated:
Three-phase active and reactive electric energy meter CE 304 S31
600 JAEQ2H. 3.1.3 The meter is certified.
Information on meter certification is given in technical
passport .411152.064 TP. 3.1.4 Normal application conditions: -
ambient temperature (232) C; - relative humidity 3080 %; -
atmospheric pressure 70106.7 kPa (537 800 mm of mercury); -
measuring network frequency (500.5) Hz; - measuring network current
and voltage waveform - sinusoidal with non-sinusoidal
coefficient not more than 5%. 3.1.5 Operating application
conditions The meter is connected with three-phase ac network and
installed indoors at the following
operating application conditions: - operating temperature range
-40 60 C; - ambient relative humidity 70106.7 kPa (537 800 mm of
mercury); - measuring network frequency (502.5) Hz; - measuring
network current and voltage waveform - sinusoidal with
non-sinusoidal
coefficient not more than 8%. 3.2 Environmental conditions 3.2.1
By the resistance to the environment the meter pertains to Group 4
according to
GOST 22261-94 with extended temperature and humidity range that
complies with category 3 modification T according to GOST
15150-69.
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By the resistance to the mechanical influence the meter pertains
to Group 2 according to GOST 22261-94.
3.2.2 The meter is resistant to dust and water penetration. The
degree of protection is IP51 according to GOST 14254-96.
3.2.3 The meter is resistant to impacts. Half-sine wave pulse -
18 ms, maximum acceleration 30gn (300 m/s ). 3.2.4 The meter is
resistant to vibration (10150) Hz. 3.2.5 Transition frequency f 60
Hz, f < 60 Hz constant movement amplitude 0.035
mm, f > 60 Hz constant acceleration 9.8 m/s2. 3.2.6 The meter
case endures (0.220.05) Nm force movement shock influence on
the
case outside surface, including the window, and on the terminal
cover. 3.2.7 By resistance to mold-fungi influence the meter buses
and components designed for
operation in tropical zones comply with GOST 9.048-89
requirements. Accepted fungoid growth up to 3 points according to
GOST 9.048-89. 3.2.8 The meter is immune to electrostatic discharge
of up to 8 kV voltage. 3.2.9 The meter is immune to high-frequency
electromagnetic fields. Frequency range
80-2000 MHz, field voltage 10 V/m. 3.2.10 The meter is resistant
to high-speed transient eruptions of up to 4kV voltage. 3.2.11 The
meter does not generate conducted or radiated interference, that
can influence
the other equipment operation. By the radio-frequency
interference suppression capability the meter meets GOST R
52320-2005 requirements. 3.3 The meter delivery set 3.3.1 The
meter delivery set is given in Table 3.5. Table 3.5
Documents indexing Nomination and designation
Quantity Application
According to Cl. 3.1.2 .411152.064OM .411152.064TP
.411152.064D1* .411152.064MR**
Three-phase active and reactive energy meter CE304_____________
(one of the modifications) Operating manual Technical passport
Verification technique Midlife repair manual Technological
software***
1 p. 1 c. 1 c. 1 c. 1 c. 1 CD
Notes * - supplied on verification body request; ** - supplied
on repair organizations request. *** - TSW Device administration
for meter scanning and programming can be found on the
Web site http://www.energomera.ru. For data exchange via optical
interface the sensing head compliant with GOST R IEC 61107-
2001 (optical head) is used. For data exchange via IrDA 1.0 any
device supporting protocol IrDA 1.0 (HHC, notebook, PC,
etc.) is used.
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3.4 Specifications 3.4.1 By active energy measurement the meters
meet GOST R 52320-2005, GOST R
52322-2005 (for class 1 and 2), GOST R 52323-2005 (for class 0.2
and 0.5 S), and by reactive energy measurement GOST 26035-83, IEC
62053-23:2003.
3.4.2 To be guaranteed are considered the specifications that
are given with accesses and value limits. Value items without
accesses are referential.
The basic specifications are given in Table 3.6. Accepted value
limits of measured value errors are given in Annex A. Table 3.6
Characteristic nomination Characteristic item Note Nominal
(maximum) current 1 (1.5); 5 (7.5) A Basic (maximum) current 5
(50); 10 (100) A Nominal phase voltage 57.7; 220 V
Depending on modification
Nominal network frequency 502.5 Hz Measuring network current and
voltage nonsinusoidality ratio, %, not more
8
direct connection
transformer connection
Active/reactive energy
- 0.001 Inom 0.2S; 0.5S/0.5 0.004Ib 0.002 Inom 1/1
Threshold sensitivity
0.005Ib 0.003 Inom 2/2 LCD decimal digits quantity From Table
3.3 Apparent power consumed in each current circuit, not more
than
0.1 VA At nominal (basic) current
4.0 VA (2.0 W)
At nominal voltages 57.7 V
Apparent (active) power consumed in each voltage circuit, not
more than
8.0 VA (2.0 W) 220 V Clock rate basic absolute accuracy
limit
0.5 s/day
Clock rate complementary error at standard temperature and
power-off
1 s/day
Clock rate manual adjustment once a day
30 s Once a day
0.15 s/Cday -10 45 C Temperature complementary time error limit
0.2 s/Cday -40 60 C Data storage time at power-off 10 years Tariff
quantity up to 4 Tariff zones quantity up to 15 Season quantity up
to 12 Exceptional days quantity up to 32 Tariffication graphs
quantity up to 36 Storage period of metering channels data
accumulated during a month per tariff
up to 13 months
Storage period of metering channels data accumulated during a
day per tariff
up to 46 days Individual averaging time for each profile
Load profile quantity up to 16 Each profile period of storage,
days, 330 At averaging time
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not less than 30 min Load control relay quantity up to 2 Dc
back-up power source voltage 9-15 V Load-carrying capacity, not
less than 500 mA Electric pulse outputs nominal (accepted), not
more than
10 (24) V Dc voltage
Electric pulse outputs nominal (accepted value) current, not
more than
10 (30) mA Dc voltage
Nominal (accepted) commuted voltage at load control relay
terminals, not more than
220 V (265 V) Ac voltage
Nominal (accepted) commuted current at load control relay
terminals, not more than
1A Ac voltage
Output pulse width 1-127 ms or meander Set while programming
Input pulse width (minimum), ms 1-255 Each pulse inputs register
maximum capacity
99999999 pulses
Exchange rate via interface 300-115200 baud Exchange rate via
optical port 300-57600 baud Time of power averaging (the averaging
period is chosen by the customer from the range)
1; 2; 3; 4; 5; 6; 10; 12; 15; 20; 30; 60 min
The time of updating all the meter readings
1 s
The time of any meter parameter reading via interface or optical
port
0.06 1000 s (at the rate of 9600 baud)
Depends on parameter type
Initial launch, not more 5 s From the moment of voltage
supply
The meter weight, not more 2.0 kg Dimensions (length; width;
height), not more
278; 173; 90 mm
Mean time to failure 120000 h Average service life 30 years
Unauthorized access protection The meter password
Hardware lock-up
3.5 The meter arrangement and operation
3.5.1 The meter arrangement The meter arrangement complies with
GOST R 52320-2005 and manufacturer outlines. The meter is produced
in plastic case. The meter general arrangement are given in Picture
3.2 The meter overall dimensions are given in Table 3.6 and in
Annex B. The meter case comprises upper and lower perimeter
conjugated components, transparent
window and removable terminal cover. The meter front panel
comprises: LCD; two light indicators active and reactive energy
quantity;
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optical port elements; lithium battery and AMP button (under the
extra cover); SHOT and SCROLL buttons; caption panel, according to
Section 11 of this OM. To obtain the access to the AMP button
(programming allowance) it is necessary to
remove the sealing put by the power supply organization that
installed the meter and to open the extra cover. Contacts for meter
connection with the network, back-up power source, interface lines,
pulse inputs and outputs are hidden by the plastic cover (Fig.
3.2). Illustration of the terminal cover under the plastic cover
depending on the meter modification is given in Figures 3.3 (for
direct connection meters) and 3.4 (for transformer connection
meters). Arranged in the case:
the meter printed-circuit board (the basic one); power module;
pulse outputs module; pulse inputs modules (if available, depending
on modification); one or two interface modules (depending on
modification); three measuring current transformers.
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1 - LCD; 2 light indicator of reactive energy quantity; 3 -
light indicator of active energy quantity; 4 optical port elements
(IrDA 1.0); 5 lithium battery and AMP (under the extra cover); 6
SHOT button; 7 SCROLL button; 8 - caption panel; 9 terminal cover;
10 points of sealing.
Figure 3.2
1
3 2
4
5
6
8
10
10
10
9
8
7
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Figure 3.3
Figure 3.4
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3.5.2 The principle of operation The principle of operation is
illustrated by the structural diagram given in Figure 3.5.
+URES
Figure 3.5 Structural diagram
3.5.2.1 The basic printed-circuit board AC line currents and
voltages are measured by special current sensors (transformers) and
resistance dividers accordingly. Value conversions are accomplished
by using six-channel analog-to-digital converter (ADC) that fulfils
analog-to-digit conversion of input signals instantaneous amplitude
and transmission via serial synchronous interface to MC. ADC
digital code values come into serial synchronous microcontroller
(MC) port. MC accomplishes calculation of currents and voltages,
active, reactive, apparent powers and energies, and also
displacement angle and voltage signal basic frequency meansquare
values. MC makes connection between all the peripheral units. The
basic electronic meter elements are installed on the same
printed-circuit board:
resistance dividers; load resistors for three current sensors;
ADC; MC; clearing circuit; memory FRAM with real time clock
(RTC);
PM
UA
U
ADC
Up
MC
FRAM+RTC
TM
Kb
LCD
PI
OP
FLASH
1
UB
UC
IA
IA0
IB
IB0 IC IC0
-URES
2
LI
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memory FLASH; optical port elements (OP); liquid-crystal display
(LCD).
3.5.2.2 Power module To supply the meter with power pulse
reverse converter, converting rectified input
voltages into the voltage necessary for supplying all the meter
blocks and modules with power, is used. To supply the meter with
power from the back-up power source (BPS) low-voltage reverse
converter to which the back-up power voltage (915 V) may be
supplied. In the input voltages UA, UB, UC absence the meter
automatically switches to the BPS operation (if the back-up power
is supplied). In the input voltages UA, UB, UC presence the BPS
automatically switches off.
The BPS input circuits are galvanic isolated from the other
circuits and endure 4 kV breakdown meansquare voltage.
3.5.2.3 Voltage transducers To match phase voltages with ADC
input amplitude levels the resistance dividers are
used. Phase (phase-to-phase) voltages are supplied from PM via
the upper divider arm resistors
to the basic printed-circuit board, where the lower divider arm
resistors are installed and led up to the input signal level
required for ADC. Metal-film resistors with minimum temperature
coefficient are used in the dividers.
3.5.2.4 Current transducers Electronic circuit diagram receives
each phase current via meter-mounted current
transformers. Transformer secondary sides are load resistance
connected, as a result the voltages proportional to input currents
are supplied to ADC inputs.
3.5.2.5 Signal conversion and computation ADC measures the
instantaneous values proportional to phase voltages and currents
via
six channels parallel, converts them into the digital code and
transmits them via the high-speed serial data link to the MC
calculating machine.
By sampling voltage and current instantaneous values the MC
calculating machine calculates mean values for the period of
measuring the required values considering the calibration factor
according to the following formulas:
For voltage and current RMS values per phase calculation the
following formula is used
N
UUU
N
ii
F
== 1
2
, (3.1)
N
III
N
ii
F
== 1
2
3.2)
where KU, KI given phase calibration factors (are entered while
calibration); N data selections quantity during the time of
measuring; Ui, Ii voltage and current data selection instantaneous
value Each phase active power is calculated by the formula
-
NIUIU
N
iii
F
=
= 1 , (3.3)
Three-phase network active power: P = PPA + PPB + PPC, (3.4)
where PPA, PPB, PPC each phase active power. Three-phase network
each phase active power is calculated by the formula
PPP UIS = , (3.5) where UP, IP voltage and current RMS values in
a corresponding phase. Three-phase network apparent power:
S = SPA + SPB + SPC, (3.6) where SPA, SPB, SPC each phase
apparent power. Each phase reactive power is calculated by the
formula
22PPP SQ = , (3.7)
where SP, PP apparent and active power in a corresponding phase.
Three-phase network reactive power:
Q = QPA + QPB + QPC, (3.8) where QPA, QPB, QPC each phase
reactive power. Each phase power loss in current circuits is
calculated by the formula
A = RPA I2PA + RPB I2PB + RPC I2PC (3.9) where IPA, IPB, IPC
each phase current RMS values; RPA, RPB, RPC each phase
transmission line active resistance. Note if RPA, RPB, RPC = 1 Ohm
power loss is equal to the specific power loss. While the
meter verification R reaches the state of 1 Ohm equality
(specific energy loss is verified). Active power factors are
calculated by the formula
PA
PA
SPA=cos ,
PB
PB
SPB =cos ,
PC
PC
SPC =cos ,
=
SPcos , (3.10)
where PPA, PPB, PPC, - each phase active power calculated by the
formula (3.6), W; SPA, SPB, SPC each phase apparent power
calculated by the formula (3.8), VA P, S- summarized active and
apparent power correspondingly; Reactive power factors are
calculated by the formula
PA
PA
SQA=sin ,
PB
PB
SQB =sin ,
PC
PC
SQ
C =sin , =
SQsin , (3.11)
where QPA, QPB, QPC, - each phase reactive power calculated by
the formula (3.10), VAr. Q- summarized reactive power. By active
and reactive power factors the quadrant number is calculated.
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Energy quadrant distribution is given in Figure 3.6.
Figure 3.6 Active and reactive energy (power) quadrant
distribution diagram
For each of the calculating machine six channels, configured for
certain energy types
computation, per-phase values, integrated in the period of 1
sec., are calculated: - of active energy (power) import, Ai, if the
phase apparent power phasor is in the I or IV
quadrants; - of active energy (power) export, Ae, if the phase
apparent power phasor is in the II or
III quadrants; - of reactive energy (power), R1 (R2, R3, R4), if
the phase apparent power phasor is in
the I (II, III, IV) quadrants correspondingly; - of import
(export) active energy (power) loss, Li (Le), if the phase apparent
power
phasor is in the I or IV (II or III) quadrants correspondingly.
On the basis of the calculating machine channels calculated
energies MC transmits
energy consumption signals to the pulse outputs (in case they
are configured as telemetry outputs), which may be connected with
AMR system.
3.5.2.6 FRAM memory All the data necessary for multi-rate
calculation results safety provision is stored in the
nonvolatile memory FRAM on the basic printed-circuit board. The
data comprises: calibration factors; configuration parameters;
tariffication parameters; six metering channels (metering per
tariff and in total) storage units; six metering channels (metering
per tariff and in total) storage units values for the
current and 12 previous months; six metering channels (metering
per tariff and in total) storage units values for the
current and 45 previous days; six metering channels (metering
per tariff) maximum power in the set averaging
time period for the current and 12 previous months; load profile
current averaging time active records; logs designed for 40 records
each with the event date and time fixation:
o of changeable parameters programming; o network parameters
out-of-tolerance; o self-diagnosis negative results.
3.5.2 FLASH memory Bulk nonvolatile memory FLASH is designed for
load profiles data storage by six metering channels with different
averaging times.
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3.5.2.8 The meter interfaces The meter provides data exchange
with external data processing units depending on
modification via optical port and two interfaces in accordance
with GOST R IEC or IrDA 1.0. Data exchange via optical port and (or
IrDA 1.0) and the second interface COM2
(additional interface module) simultaneously is impossible. All
the interfaces contacts are galvanic isolated from the other
circuits and endure 4 kV
breakdown meansquare voltage. The optical port is designed in
compliance with GOST R IEC 61107-2001. OP is
designed for the local meter connection via optical head,
connected to the PC COM port. The meter modifications with
interface module EIA232 may be connected directly to the
PC COM port. The meter modifications with interface module
EIA485 allow connecting not less than 31
devices (meters) with one bus. 3.5.2.9 Pulse outputs The meter
has six electrical pulse outputs (TM1TM6) designed for the current
tariff
indication, devices (the other meters) tariff switch, the
exceedance of maximum indication, remote control, etc.
Four outputs are realized on the transistors with open collector
and designed for dc voltage commutation. Nominal power voltage
(102) V, maximum accepted 24 V. Commutated nominal current value is
equal to (101) mA, maximum accepted 30 mA. All the four outputs may
be used as a basic transmission output unit with parameters
compliant with GOST R 52320-2005, GOST R 52322-2005 (GOST R
52323-2005).
Two outputs are realized on bidirectional thyristors and
designed for dc voltage commutation. Nominal power voltage 220 V,
maximum accepted 265 V. Commutated nominal current value is not
more than 1 A. Both outputs may be used as load control relays.
All the pulse outputs are galvanic isolated from the other
circuits and endure 4 kV breakdown meansquare voltage.
3.5.2.10 Pulse inputs The meter has four electrical pulse inputs
(PI). Each IP is designed for progressive total
calculation of pulse quantity received from the external devices
with electrical test outputs in compliance with GOST R 52322-2005
(GOST R 52323-2005); for metering the energy received from the
external measuring units to identify different mechanical sensors
condition.
Pulse inputs module has internal power source, isolated from the
other meter circuits, with output voltage (5.00.5) V. Each pulse
input current is bounded by 1.5 kOhm resistors.
All the pulse inputs are galvanic isolated from the other
circuits and endure 4 kV breakdown meansquare voltage. 3.5.2.11
Liquid-crystal display LCD is used for indication of the measured
and accumulated values, additional parameters and messages. To make
scrolling easy all the indicated data is divided into the separate
groups. Each group can comprise different parameters quantity.
Scrolling is accomplished by the customer with the keyboard
(Kb). Displayed on LCD data is given in Figure 3.7
-
Figure 3.7 3.5.2.12 Light indicators
The meter has two light indicators (LI) that operate with the
basic transmission unit frequency. The left light indicator
displays active energy, the right one reactive energy. Light
indicators may be used for verification.
4 THE METER PREOPERATION
4.1 Unpacking 4.1.1 Visual examination should be carried out
after unpacking to make sure that the sealing is in place and there
is no mechanical damage.
4.2 Preoperation 4.2.1 The meters produced by the manufacturer
have factory settings in compliance with
the programmable parameters list given in TP. Before mounting
change the factory settings to the required in case it is
necessary. It is
sufficient to supply one of the phases with nominal voltage. The
meter reprogramming may be accomplished via the interfaces and OP
with the TSW that can be found on the Web site (Cl. 3.3.1)
4.3 Installation procedure 4.3.1 Set the reprogrammable
parameters in compliance with Cl. 4.2 and 4.6 of this OM. 4.3.2 The
meter should be connected to three phase AC network with the
nominal
voltage, indicated on the meter panel. Terminal cover should be
removed and conducting wires should be connected according to the
connection diagram, indicated on the meter cover. If the meter is
to be connected to the AMR system, signal wires should be connected
to the telemetric or interface outputs in compliance with the
connection diagrams.
4.4 Connection diagrams 4.4.1 Designation of terminal block
contacts for pulse outputs, inputs, back-up power
source connection is given in Figure 4.1
Figure 4.1
TARIFF Mo Tu We Th Fr Sa Su
88888888 G k/VArh 8 88:88 88
cos % Hz MONTH DAY
TOTAL LIMIT
2
ERR PHASE ABC
-
1 TM1TM4 (contacts 1219) pulse outputs connection; 2 pulse
inputs (contacts 2025) and back-up power (contacts 6, 27)
connection; 3 TM5, TM6 (contacts 3235) pulse outputs (load control
relay) connection; 4 interfaces (contacts 16) connection.
4.4.2 TM1TM4 pulse outputs connection To provide pulse outputs
operation it is necessary to supply dc voltage according to the
diagram given in Figure 4.2.
Figure 4.2 Pulse outputs connection diagram Resistance value R
in pulse output load circuit is calculated by the formula: ( )
01.0/0.2= UR where U output supply voltage, V.
4.4.3 TM5, TM6 pulse outputs connection Load connection diagram
is given in Figure 4.3. Commutation current shall be not more
than 1 A. AC voltage 220 V.
Figure 4.3 Load connection diagram
4.4.4 Pulse inputs connection Pulse inputs connection diagram is
given in Figure 4.4. Circuit closing connection contacts shall
endure 5V voltage, dc 10mA. Contact resistance in closed condition
shall be not more than 100 Ohm.
304 "12" "14"
"13" "15"
"16" "18" "17" "19"
TM4
-R + 824
V
-R + 824
V
-R + 824
V
-R + 824
V
TM3
TM2
TM1
304 "32" "34" "33" "35"
242 V 242 V
RL
RL
TM5
TM6
-
Figure 4.4 Pulse inputs connection diagram
4.4.5 Back-up power source connection Back-up power source (BPS)
connection shall have output voltage 915 V, output capacity not
less than 500mA. BPS connection diagram is given in Figure 4.5.
Figure 4.5 Diagram of meter connection with back-up power source
4.4.6 EIA485 interface connection EIA485 interface meter is
connected in compliance with EIA485 standard and connection diagram
given in Figure 4.6.
In case earth potentials in places of the meter and DAU (data
acquisition unit) mounting are equal, it is sufficient to connect
the meter contact 5 to the zero potential point, otherwise drainage
cable line should be connected to the contact 5 of each meter
through C2-33H-1-100 Ohm resistor or identical one in accordance
with Diagram 4.6.
In case the interconnection line length does not exceed some
meters and there are no interference sources, the connection
diagram may be essentially simplified by connecting the meter to
the DAU or PC with only two signal cables A and B without terminal
resistors.
304 "20" PI 1 "22"
PI 2
"23"
"21" PI 3 "24" PI 4 "25"
+
-+
+
+
-
-
-
304+ "26"
"27" -
BPS
-
Rb 560 Ohm, bias resistors are installed in the meter. To
connect them it is necessary to connect several meters contacts 4 6
and 3 1 COM1 (COM2) depending on the line interference level on the
line. RT 120 Ohm, terminal resistor with the rating equal to cable
wave impedance. Figure 4.6 EIA485 interface lines connection
diagram In EIA485 interface meters not connected to the interface
line error messages may appear on LCD. To avoid their appearance it
is necessary to connect the meter in accordance with the diagram
given in Figure 4.7.
Figure 4.7 Bias resistor connection diagram
4.4.7 EIA232 interface connection EIA232 interface meter is
connected in accordance with EIA232 standard and connection diagram
given in Figure 4.8.
Figure 4.8 EIA232 interface lines connection diagram 4.4.8
Recommendations on interface circuits connection to PC directly or
via external modems are given in Annex D.
4.5 Power source replacement 4.5.1 Remove the meter programming
access cover sealing (Figure 3.2). 4.5.2 Remove the power source
holder. 4.5.3 Remove the power source broken-down and install a new
BR2032 or analogous.
"1" ("2") CE 304
100 Ohm 100 Ohm
RT
DAU
Vcc B A GND 3 4 5
100 Ohm100 Ohm
Rd
RT B Rb
"1"("2") 304
3 4 6 1 5
Rb
100 OhmRd 100 Ohm
A
"1" ("2") 4 3 6 1
304
DAU
304 "1" ("2")
TxD 4
3
RxD
2 5
RINGGND
-
4.5.4 Connect the power source holder plug to the meter and put
it in its place. Note To avoid clock inaccuracy while the power
source replacement, the activities
mentioned above should be completed with the meter in operation.
4.6 The meter configuration The meter programming and reading is
accomplished with AMR system or PC (with the
TSW Administration program installed) via one of the interfaces
by using a corresponding adaptor or via the optical port by using
the optical head in accordance with GOST R IEC 61107-2001 or IrDA
1.0. Data formats for the interface exchange are given in Annex
E.
While the meter programming, the date, time, access passport and
parameters list are fixed in the programmable parameters log.
Additionally, in some parameter group recorders the date, time,
access password and the given group programming quantity are
fixed.
In the identification message line the meter outputs:
manufacturer identification code EKT product identification code
CE304vX, where X meter data set version.
The meter programmable parameters typical configuration:
calculating machine channels depending on type (CL 4.6.1); external
current and voltage transformers transformation ratios 1; phase
wires resistance 1 Ohm; calculating machine channels power
averaging time period 30min; calculating machine channels power
averaged limits 0 (are not set); voltage fluctuation upper (lower)
boundaries 120 (80) % of UNOM; time-of-day pulse output control
switches 0 (are not set); pulse outputs 1, 2,3, 4 - calculating
machine channels 1, 2, 3, 4 energy telemetry meander; pulse outputs
5, 6 direct control, dead condition; pulse inputs switched off;
pulse inputs constants 1; pulse inputs transformation ratios -1;
rate scale not set; profile configurations not set; time Moscow;
summer (winter) time switch months March, (October); access
password #1 -777777; other passwords not set; the meter
address-identification code not set; initial interface exchange
rate 300 bauds; operating interface exchange rate 9600 bauds;
interface activity time 4s; response delay time 200 ms; programming
authorization with the ACCESS button; accumulated energy reset with
buttons unauthorized; consequent same name parameters outputting
into interface without a name allowed; indication automatic return
allowed. The full list of programmed parameters and their values is
given in TP. 4.6.1 Calculating machine channels configuration
(KANzz)
-
The meter allows programming six calculation channels for
different energy (power) types calculation:
both directions (Ai, Ae) active energy (power); four quadrants
(R1, R2, R3, R4) reactive energy (power); both directions energy
(power) loss (Li, Le); external measuring element unit-counting
input physical quantity values (11, 12,
13, 14). Energy (power) proportional to telemetry pulses of the
external electricity meters
connected to unit-counting inputs may be grouped in one
calculation channel with meter own measurements.
ATTENTION! To avoid incorrect data formation only identical in
energy (power) type are allowed to be grouped in the calculation
channels.
ATTENTION! To avoid incorrect indication of previously metered
energies and powers, after calculation channels reprogramming it is
necessary to reset accumulated energies and load profiles.
For unidirectional meter: The first calculating machine channel
is always programmed for total active energy
calculation (Ai + Ae). Consequently, energy will be metered via
this channel independently of energy flux direction.
For bidirectional meter: The first calculating machine channel
is always programmed for imported active energy
calculation (Ai). Consequently, phase energy with positive
active power (P+, quadrant I or IV) will be metered via this
channel.
The second calculating machine channel is always programmed for
exported active energy calculation (Ae). Consequently, phase energy
with negative active power (P-, quadrant II or III) will be metered
via this channel.
Other five or four calculating machine channels may be
programmed for various energy (power) types calculation to meet
Customers requirements.
Example: - total active energy metering (for bidirectional
meter); - imported reactive energy metering; - exported reactive
energy metering; - total energy loss metering, or - imported
reactive energy metering; - exported reactive energy metering; -
energy loss metering for imported active energy; - energy loss
metering for exported active energy. For active energy (power)
import metering and control accomplished by the enterprise that
has some lead-in feeders (three), it is necessary to install
CE304 meter with pulse input module into one feeder. Simple active
energy meters shall be installed into other feeders (two) and their
main transmitting unit outputs shall be connected to pulse inputs
(PI1, PI2). Pulse inputs shall be programmed in accordance with
connected external meter parameters (constants and transformation
ratios). Calculating machine channel #4 shall be programmed for
imported active energy and unit-counting input energies (Ai+11+12)
calculation.
Typical configuration of calculating machine channels is given
in Table 4.1 Table 4.1
-
Measured and stored values of Calculation channel unidirectional
meter bidirectional meter
Channel 1 Ai+Ae always Ai always Channel 2 R1 Ae always Channel
3 R4 R1+R2 Channel 4 Li+Le R3+R4 Channel 5 Ai Li Channel 6
R1+R2+R3+R4 Le
4.6.2 Calculation results reduction to input end (FCCUR, FCVOL)
The meter can accomplish input end calculation considering
measuring current and voltage
transformers transformation ratios. Calculated energy and power
values and also network quality parameters are automatically
multiplied by voltage transformer transformation ratio (Rv) and
current transformer transformation ratio (Rc) in metering point. In
this case measured values displayed on LCD and transmitted via
digital interfaces indicate measuring transformers input end
values.
The meter operation light indicators (LI) and pulse outputs in
telemetry mode indicate energy without considering Rv and Rc.
For the meter direct connection or obtaining the output end
(meter terminals) measurement results, it is necessary to set
transformation ratios Rv=1, and Rc=1.
4.6.3 Electric main phase wires resistance (RESzz) The meter can
accomplish calculation energy (power) loss in electric main wires
for each
phase. To do this, it is necessary to set each controlled line
segment phase wire resistance. Calculation of active power loss in
wires is accomplished by the formula P=I2R.
4.6.4 Power averaging time interval (TAVER) Calculating machine
channel power averaging time interval for commercial metering
may
be set in the range of 160 min. interval duration is chosen from
the range: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60 minutes.
Each calculating machine channel power, averaged in a set
interval, is used: For each tariff maximum power finding and
fixation during a month; For set power limit exceedence finding per
tariff.
4.6.5 Averaged power limits (LIMzz) For each calculating machine
channel and each tariff their own limit of power averaged in
a set interval may be set. Average power limit value is set in
kW (kVAr) considering transformation ratios Rv and Rc used
(reduction to input end). For average power limit value equal to
zero, power limit exceedence verification is not taken.
4.6.6 Phase voltage fluctuation boundaries (LEVUP, LEVDN) For
event fixation in fluctuation log and signal formation at pulse
output in case of
measured voltage value limit exceedence, upper and lower
boundaries of accepted fluctuation are set in percents of nominal
voltage. Value range 0130%.
Phase voltage failure finding boundary is fixed and comprises 5%
of nominal voltage. 4.6.7 Time-of-day pulse output control switches
(TMTzz) The meter has four independent time-of-day pulse output
switches. Any available rate
scale is fixed for each switch. Pulse output will be in dead
mode during tariff #1 operation time of day and in closed mode
during tariff #2 operation time of day. Any other scale tariff
doesnt cause pulse output mode switch.
4.6.8 Pulse outputs configuration (TELzz)
-
The meter allows programming of up to eight pulse outputs
(TM1TM8) for various verification or control signals formation.
Each pulse output is set individually and allows commuting circuits
of external devices with electrical pulse output set module
characteristics. Each pulse output may be set for performing the
following functions:
calculating machine channel test output unit (telemetry); set
calculating machine channel power threshold exceedence response;
set time of day response; current tariff response; phase voltage
response; direct control by a command via interface; the basic
quartz-crystal resonator test. The list of functions (events) for
pulse output is given in Table 4.2
Table 4.2 Number Event description
0 The basic quartz-crystal resonator test 1 1 calculating
machine channel energy telemetry 2 2 calculating machine channel
energy telemetry 3 3 calculating machine channel energy telemetry 4
4 calculating machine channel energy telemetry 5 5 calculating
machine channel energy telemetry 6 6 calculating machine channel
energy telemetry 7 One of the phases is switched off 8 Voltage of
any phase is less than the set low level 9 Voltage of any phase is
more than the set upper level 10 1 calculating machine channel
power limit is exceeded 11 2 calculating machine channel power
limit is exceeded 12 3 calculating machine channel power limit is
exceeded 13 4 calculating machine channel power limit is exceeded
14 5 calculating machine channel power limit is exceeded 15 6
calculating machine channel power limit is exceeded 16 Time tariff
#1 is active 17 Time tariff #2 is active 18 Time tariff #3 is
active 19 Time tariff #4 is active 20 Time of day control according
to switch #1 21 Time of day control according to switch #2 22 Time
of day control according to switch #3 23 Time of day control
according to switch #4
2431 Reserve 32 Direct control
4.6.8.1 Calculating machine channel test output unit (telemetry)
In this mode pulses appear at the output with the frequency
proportional to a set
calculating machine channel energy quantity without considering
transformation ratios of current, voltage, pulse input transformers
in the metering point. The meter constant pulse quantity for kWh
(kVAr), is determined by meter modification according to Table
3.3.
For pulse output operation in telemetry mode it is necessary to:
set the number from the list of functions (calculating machine
channel choice); set the required telemetry pulse duration from 1
to 127 ms or meander; set the telemetry pulse active level dead or
closed. Pulse output in telemetry mode is usually used for meter
verification.
-
4.6.8.2 Set calculating machine channel power threshold
exceedence response While performing this function, calculation of
assessed mean power of calculating
machine channel is used. Assessed mean power is the power
averaged from the beginning of the averaging interval up to the
current time. It informs about the energy flux tendency in a set
interval and serves for indication of the set power level (limit)
exceedence in a set averaging interval.
Assessed power limit exceedence verification for the current
tariff is accomplished every minute of the averaging interval.
In this mode pulse output will be in dead condition during the
first minute of the averaging interval. Every next minute pulse
output switches to the mode:
closed at developing assessed power of power limit; dead at
assessed power value below power limit. The function is used for
the power limit exceedence indication or as a load control relay.
For pulse output operation in this mode it is necessary to: set the
number from the list of functions (calculating machine channel
choice); set the calculating machine channel power limit for
tariffs controlled. 4.6.8.3 Set time of day response While
performing this function rate scale is used. The meter has four
independent time-
of-day pulse output switches. Any rate scale is fixed for each
switch. Pulse output will be in dead mode during time of day when
tariff #1 is active and in closed mode during time of day when
tariff #2 is active. Any other scale tariff doesnt cause pulse
output switch.
The function is used for control instruction issue in a set time
of day. For pulse output operation in this mode it is necessary to:
set the number from the list of functions (switch choice); schedule
tariff #1 and tariff #2 day switch; set the number of rate scale
for the switch chosen (TMTzz). 4.6.8.4 Current tariff response Each
pulse output may be fixed for any of four tariffs operation time
indication. Pulse
output will be in closed mode during the fixed tariff operation
and in dead mode during the rest of the day. The function is used
for tariffication instruction issue to the external nontariff
devices.
For pulse output operation in this mode it is necessary to: set
the number from the list of functions (tariff choice). 4.6.8.5
Phase voltage response Each pulse output may be fixed for one of
the phase voltage modes indication: any phase voltage is absent;
any phase voltage is less than a set low level; any phase voltage
is more than a set upper level. Phase mode information refreshment
is accomplished once a second. The function is used for bad quality
network indication. For pulse output operation in this mode it is
necessary to: set the number from the list of functions (controlled
mode choice). 4.6.8.6 Direct control by a command via interface
Each pulse output may be fixed for indication of the mode set via
interface. The function is used for remote external devices
control. For pulse output operation in this mode it is necessary
to: set the number from the list of functions (control choice);
-
set the required output mode (TMDIR). 4.6.8.7 The basic
quartz-crystal resonator test. Each pulse output may be fixed for
issue of meander with a period of 10 sec. proportional
to the basic quartz-crystal resonator frequency. The function is
used for verification and calibration of the basic quartz
frequency
technological parameter. For pulse output operation in this mode
it is necessary to: set the number from the list of functions (test
choice). 4.6.9 Pulse inputs configuration (INMzz, INCzz, INSzz) The
meter allows programming four pulse inputs (PI1PI4) for external
sensors pulses
calculation with their successive conversion into named units.
Those sensors can be represented by particularly electricity
meters, utility meters with pulse outputs. Also pulse input may be
used for events quantity calculation and receiving information on
connected mechanical burglar and fire alarm sensors condition.
Pulse quantity metering mode is set individually for each input:
no metering; by closed to dead state transition leading edge; by
dead to closed state transition trailing edge; by both edges. To
avoid metering afterpulses, caused by short spurious signals at
pulse input connection
diagrams, input filter constant is set in the range of 1255 ms.
Pulses with the length less than filter constant will be hidden for
the meter.
For the named physical quantities calculation by the
unit-counting inputs the external meter constant is entered. That
meter transmits pulses proportional to measured value to the basic
transmission unit as pulse quantity per kWh (kVArh, m3). To reduce
energies (powers), designed for electricity meters, to input end,
power transformation ratio is set external meter voltage and
current transformers transformation ratios generation.
Named values calculation is accomplished only for pulse inputs
included in calculating machine channel.
Quantity of pulses metered per each input may be reset only
while accumulated energies resetting.
For pulse input configuration it is necessary to know: pulse
metering mode; afterpulse length; inverting input constant (for
named values); generalized transformation ratio (for named values).
4.6.10 Multirate mode configuration The meter accumulates
calculating channels energies: under four tariffs; under additional
tariff, in case it is impossible to define the current tariff (real
time
clock inaccuracy or rate scale is not set); under all the
tariffs in total (unrated metering). The meter averages calculating
machine channel powers in a set time interval and fixes
month power maximum value: under four tariffs; under additional
tariff. For multirate metering organization it is necessary to set:
day rate scales list;
-
day of week season structures and season beginning dates;
exceptional days (days when tariffication is different) list.
4.6.10.1 Day rate scales list (GRFzz) It is possible to set up to
15 current tariff switch time within a day period. The switch
time rating period beginning is set with accuracy to 1 min.
During one time of the day only one tariff can be active. Certain
tariff is active during the set time till switch time period. In
case the basic switch time is defined not from the day beginning
the tariff defined for the latest time of day is active.
The example of rate schedule is given in Table 4.3 and in Figure
4.9 Table 4.3
Time of tariff activity beginning
Current tariff Time of tariff activity during a day
04:30 II 07:30 III
I tariff 09:0011:00 13:3016:00
09:00 I 11:00 III
II tariff 04:0007:30 18:0020:30
13:30 I 16:00 III 18:00 II
III tariff 07:3009:00 11:0013:00 16:0018:00
20:30 IV
IV tariff 00:0004:30 20:3024:00
Figure 4.9
To set one tariff for the whole day its sufficient to specify
any time of day. The meter allows setting of up to 36 different day
rate scales (rate scale list).
4.6.10.2 Season structure (SEASON) The season determines fixed
tariffication for the time period from a day to a calendar
year. The time of season activity is defined from the specified
date of season beginning till the beginning of the next season in a
calendar year. In case the season with the date of calendar year
beginning is absent in the list of seasons the last set season is
active from the beginning of the year. Within the time period
during which the season is active the tariffication per weekday
remains unchanged. Certain rate scale may be set for each
weekday.
The example of a calendar year rate schedule is given in Table
4.4. Table 4.4
The number of day rate scale active on
Seas
on #
Time of tariff activity beginning
Monday Tuesday Wednesday Thursday Friday Saturday Sunday
4 April, 5 5 5 3 3 17 1 2 2 October, 12 8 9 21 22 23 11 12
00:00 12:00 24:00
18:00 20:30 16:0013:3011:009:007:30 4:30
II IV III I III I III II IV
-
In this example the year is divided into two seasons. Since the
1st of January till the 4th of April and since the 12th of October
till the 31st of December the second season rate scales will be
active, since the 5th of April till the 11th of October the first
season rate scales will be active.
The meter allows setting of up to 12 season rate scales.
4.6.10.3 Exceptional days (EXDAY) Exceptional days are days of a
calendar year the tariffication of which is different from
the season weekday tariffication. Such exceptional days are
public holidays, holidays and workdays rescheduled. Any rate scale
of the list prepared may be specified for each exceptional day.
The meter allows setting of up to 32 exceptional dates. 4.6.11
Profiles configuration The meter allows forming of up to 16
independent profiles. The data accumulated in
profiles are accessible only via digital interfaces. A profile
can accumulate the energy (power) data of any calculating machine
channel with the individual time interval. The profile data values
are reduced to input end and registered considering the active
transformation factors. For the meter switched off during a day
profile data for that day is absent. For the meter switched off
during an interval time that interval data is marked as absent. In
case the interval is changed by the time correction or the meter is
switched off in the interval segment the data is marked as
incomplete. For each profile it is possible to set:
calculating machine channel; data type energy or power; time
interval in the range: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60
min. The profile configured for the calculating machine channel #0
or with the interval time 0
min is considered switched off. ATTENTION! While profile
configuration logging into the meter all the previously
accumulated profile data is reset. Any profile data storage
period depends only on time interval and is defined in
accordance with Table 4.5 Table 4.5 Time interval, minutes
1 2 3 4 5 6 10 12 15 20 30 60
Storage period, days
11 22 33 44 56 67 112 134 168 224 336 512
4.6.11.1 Profile data formation at clock time change In case the
time is put forward (analogous to switching the meter off): within
the interval the interval data will be marked as incomplete; within
a day the old and the new intervals data will be marked as
incomplete,
the data between the intervals will be marked as absent; into
another day the new day data will be formed. In case the time is
put backward: within the interval the interval data will be marked
as incomplete; within a day the new interval data will be marked as
incomplete, all the data of
the intervals run twice represents the sum of the first and the
second runs; into another day the new day data will be formed, and
the same day time will be
stored in profiles. While automatic summer switch from 2:00 to
3:00 on the last Sunday of the switch
month set, from 2:00 to 3:00 interval data will be marked as
absent. While automatic winter time switch from 3:00 to 2:00 on the
last Sunday of the switch
month set, additional hour interval data will be formed
separately. Each profile can store interval
-
data of only one (the last one) additional hour. Additional hour
interval data is changed (with data creation dating), if the meter
was switched on the day of winter time switch. If the meter was
switched off during the whole day of time switch the previous
additional hour interval data is stored in the profiles.
4.6.12 Time correction and setting Time setting suggests setting
of any time, date and day of week. It is reasonable to use
this instruction only before putting the meter into operation in
case it was taken into another time zone, after repair or long-term
storage, and at clock failure resulted from switched off power
lithium element failure.
Time correction (30 s) may be accomplished fingertip only once a
day (Cl. 5.2.6), or via digital interfaces (CL. 5.4.3). If the
departure comprises more than 30 s. the correction should be
accomplished during several days or time setting instruction should
be used. The minus correction is accomplished by setting second
readings to zero in case the current second value was not more than
29 s. The plus correction is accomplished by setting readings to 59
s. in case the current second value was 30 s. or more.
At low and high temperatures the clock readings departure may
comprise up to 9 s/day. It is possible to set clock rate
autocorrection in the meter. At the producing plant the
clock was calibrated at standard temperature. In case the clock
readings departure takes place, it is possible to calculate and
change clock rate calibration factor:
to calculate day clock readings departure for several days to
within second deciles (for slow clock with - sign, for fast clock
with + sign);
to read the meter calibration factor and chose the corresponding
day clock readings departure from Table 4.6;
to put together the chosen and the calculated day clock readings
departures considering signs;
to chose the corresponding calibration factor from Table 4.6 and
log it into the meter according to the received summarized clock
readings departure. Table 4.6
Positive calibration for slow clock Negative calibration for
fast clock Calibration factor
0 Day clock readings
departure to, s -0.19
Calibration factor 0
Day clock readings departure to, s
0.19 -1 -0.19 1 0.19 -2 -0.56 2 0.56 -3 -0.94 3 0.94 -4 -1.31 4
1.31 -5 -1.69 5 1.69 -6 -2.06 6 2.06 -7 -2.44 7 2.44 -8 -2.81 8
2.81 -9 -3.19 9 3.19 -10 -3.56 10 3.56 -11 -3.94 11 3.94 -12 -4.31
12 4.31 -13 -4.69 13 4.69 -14 -5.06 14 5.06 -15 -5.44 15 5.44 -16
-5.81 16 5.81 -17 -6.19 17 6.19 -18 -6.56 18 6.56
-
-19 -6.94 19 6.94 -20 -7.31 20 7.31 -21 -7.69 21 7.69 -22 -8.06
22 8.06 -23 -8.44 23 8.44 -24 -8.81 24 8.81 -25 -9.19 25 9.19 -26
-9.56 26 9.56 -27 -9.94 27 9.94 -28 -10.31 28 10.31 -29 -10.69 29
10.69 -30 -11.06 30 11.06 -31 -11.44 31 11.44
-11.81 11.81
4.6.13 Access passwords (PSWzz, CRWzz) Programming and parameter
reading access limit is realized with passwords. The
password, with which the access to programming was accomplished,
is fixed in the programming log. The meter supports up to 4
passwords of up to 8 symbols length. Administrator (password #1)
can change any password, the others only their own ones. Empty
password (with no symbols) is considered inactive.
Only the administrator can change the configuration of the
accessible for Users (passwords #2, #3, #4) programmable and
readable parameter groups and configuration of the parameters
output in the mode of reading data with no password.
ATTENTION! At triple incorrect password introduction the access
to the meter is blocked till the end of a day.
4.6.14 Accumulated calculating machine channel data reset After
calculating machine channels programming, it is recommended to set
to zero the
accumulated data on: energy with progressive total of all the
channels per tariff; energy accumulated during all the months of
all the channels per tariff; energy accumulated during all the days
of all the channels per tariff; maximum average powers for all the
months of all the channels per tariff. Accumulated data reset is
accomplished in manual mode (in case it is enabled). To set
calculating machine channel data to zero it is necessary to: enable
reset mode (to log the instruction via interface); place the meter
in the programming mode press the button Access (the text
Access and countdown is displayed on LCD); press the button
SCROLL (the text CLEAR and countdown is displayed on
LCD); press the button Access not later than in 3 seconds. The
date and time of setting to zero are fixed in the corresponding
register. Note each profile data is reset individually (Cl.
4.6.11). 4.6.15 Access password, record locking, response delay
reset The meter allows changing access passwords to prohibit
unauthorized programming and
reading. The meter allows prohibiting programming via any
digital interface to reduce the
possibility of unauthorized programming.
-
The meter allows changing the time of delay via interface from 1
to 255 ms. The parameter serves for reducing the time of exchange
and can be collated depending on the apparatus connected and PC
software support. For instance, some EIA485 interface adaptors with
automatic transmission direction switch require the response delay
of more than 70 ms.
In critical situations when the access password is lost, the
programming for all interfaces is prohibited and response delay
time is less than accepted, setting of the following parameters is
supported by default:
access password #1 777777; other passwords not set; programming
via all the interfaces is enabled; response delay 200 ms. For value
default setting it is necessary to: place the meter in the
programming mode press the button Access (the text
Access and countdown is displayed o LCD); press the button
SCROLL (the text CLEAR and countdown is displayed on
LCD); press the button Access not later than in 3 seconds. The
date and time of value default setting is fixed in the
corresponding register. 5 OPERATION PROCEDURE The meter reading is
possible both in manual and automated modes. In the automated mode
the complete information on energy consumption may be
obtained with PC via interfaces. Data exchange via interfaces is
given in Cl. 5.4. In manual mode the data is displayed on LCD in
the window of seven decimals with
decimal point and character multipliers width (k=103, M=106,
G=109). The full list of output formats of measured, calculated and
accumulated parameters is
given in Table 5.1 Table 5.1
on LCD via interfaces Names of indicated parameters
Displayed value of a quantity
Units of measurement
Quantity of positions on the right of the point
Units of measurement
Quantity of positions on the right of the point
Voltage to 10 to 100 to 1000
V, kV, MV 4 3 2
V 3
Current to 10 to 100 to 1000
, k, 4 3 2
4
Power to 10 to 100 to 1000
W, kW, MW, (VAr, kVAr, MVAr), (VA, kVA, MVA)
4 3 2
kW, (kVAr), (kVA)
6
Power factors 3 3 Angles degree 1 degree 1 Network frequency
Hz 2 Hz 2
Calculating machine channel energy progressive total (per
see Cl. 5.1
KWh, (kVArh)
5
-
month, day) Average power maximums
to 10 to 100 to 1000
W, kW, MW, (VAr, kVAr, MVAr)
4 3 2
kW, (kVAr)
6
Predictable calculating machine channel power
to 10 to 100 to 1000
W, kW, MW, (VAr, kVAr, MVAr)
4 3 2
kW, (kVAr)
6
Current averaging interval calculating machine channel
energies
not indicated kWh, (kVArh)
5
Profile interval values
not indicated kW, kWh, (kVAr,
(kVArh)
5
5.1 Calculating machine channel data display on LCD
5.1.1 Register values display
Calculating machine channel energies are stored in registers of
19 decimal width with 10 mWh resolution (i.e. 5 decimals after the
point for units of kWh measurement). Maximum accepted value of
accumulated calculating machine channel energy comprises 401012
kWh, that cannot be exceeded even in case of meter operation at
maximum load, with maximum accepted measuring transformers ratios
during the whole service life. To meet GOST R 52320-2005
requirements to register for different modifications meters,
different variants of register display on LCD are chosen (Table
3.3). As the meter accomplishes input end metering, the register
display window automatically undents by the value proportional to
power transformation ratio (Rp=RvRc). Register value on the left of
the window is a number of window width overflows. Register value on
the right of the window is a fraction of display least significant
bit unit. The example of 57.7 V 5 A transformer connection meter
LCD display window is given in Table 5.2 Table 5.2 Register and
display window position
Display window with character multiplier
Value of input end power factor (Rp=RvRc)
43210987654321.12345 54321.123 kWh up to 10 43210987654321.12345
654321.12 kWh 10100 43210987654321.12345 7654321.1 kWh 1001000
43210987654321.12345 87654.321 MWh 100010000 43210987654321.12345
987654.32 MWh 10000100000 43210987654321.12345 0987654.3 MWh
1000001000000 43210987654321.12345 10987.654 GWh 100000010000000
43210987654321.12345 210987.65 GWh 10000000100000000 5.1.2
Calculating machine channel identification While calculating
machine channel data indication on LCD, on the left of value
display window indicated channel number sign is displayed ( =1, =
2, = 3, = 4, = 5, = 6). Calculating machine channel mnemonic is
also displayed:
| A imported active energy (Ai); | A exported active energy
(Ae);
-
P | - imported reactive energy (R2+R3); P | - exported reactive
energy (R1+R4); | energy loss for imported active energy (Li); |
energy loss for exported active energy (Le). In case calculating
machine channel contains only unit-counting inputs energy
mnemonics
is not displayed. 5.1.3 Tariff identification Calculating
machine channels data (energy) is accumulated per tariff in
accordance with set
tariffication parameters and inbuilt clock time. Tariff
designation: tariff 0 total energy; tariff 1 energy accumulated
during the first tariff operation; tariff 2 energy accumulated
during the second tariff operation; tariff 3 energy accumulated
during the third tariff operation; tariff 4 energy accumulated
during the forth tariff operation; tariff 5 energy accumulated
after clock failure or at incorrect (not set)
tariffication parameters; tariff 6 energy accumulated in
accordance with specified criterion; tariff 7 - energy accumulated
in accordance with specified criterion. Accumulated calculating
machine channel data value tariff 0is equal to the sum of
accumulated data values for 5 tariffs (from the first to the
fifth). 5.2 Data scrolling in manual mode Data scrolling is
accomplished with the SHOT and SCROLL buttons. Two types of
pressing buttons are distinguished:
short a button is kept pressed for less than 1s. long a button
is kept pressed for more than 1s.
Pressing the SHOT button for long time switches in a successive
order the display of the following groups of parameters:
TOTAL calculating machine channels data accumulated with
progressive total;
MONTH - calculating machine channels data accumulated for a
month; DAY - calculating machine channels data accumulated for a
day; AVERAGE POWER MAXIMUMS; FORECASTING POWER; SERVICE
INFORMATION; QUALITY PARAMETERS; PULSE INPUTS.
LCD indication switch structure by type (SHOT or SCROLL) and
manner of
pressing (short or long) buttons are given in Annex G. 5.2.1
Group TOTAL Values of calculating machine channels data accumulated
with progressive total per tariff
and in total are displayed. The data displayed on LCD:
calculating machine energy value with progressive total; number
label and constituents of calculating machine channel; displayed
tariff number; TOTAL indicator; phase voltage indicators.
-
Figure 5.1
Total (tariff 0) active (A) imported (|) energy value (0012.345
kWh) of the (whole) first calculating machine channel ()
progressive total is given in Figure 5.1.
Additionally the phase voltage presence is indicated (Phase
ABC). The button Scroll short-time pressing gradually switches
calculating machine channel
consumed energy indication per tariff (8 tariffs in total). The
button Scroll long-time pressing gradually switches different
calculating machine
channels consumed energy indication (6 channels in total). 5.2.2
Group MONTH Calculating machine channels data accumulated with
progressive total for the month in
total and per tariff are displayed. On LCD the following data is
displayed: energy value of calculating machine channel progressive
total for the month in the end of the month; label number and
calculating machine channel constituents; month and year of
fixation; displayed tariff number; marker MONTH; phase voltage
presence markers.
Figure 5.2
In Figure 5.2 active (A) exported (|) energy value (0000.789
kWh) of the second calculating machine channel () progressive total
fixed in the end of March 2006 (0306) by the first tariff (tariff
1) is given. If the date value is equal to 0000, the months
metering data is absent.
TARIFF PHASE
TOTAL
kWh
TARIFF MONTH
PHASE ABC
kWh
-
View of calculating machine channel progressive total readings
in the end of the previous month is accomplished by the short-time
pressing the button SHOT (only 13 months).
The button Scroll short-time pressing gradually switches
calculating machine channel consumed energy end-month indication
with progressive total per tariff (8 tariffs in total).
The button Scroll long-time pressing gradually switches
different calculating machine channels consumed energy end-month
indication with progressive total (6 channels in total).
5.2.3 Group DAY Calculating machine channels end-day data
accumulated with progressive total in total
and per tariff are displayed. On LCD the following data is
displayed: energy end-day value of calculating machine channel
progressive total; label number and calculating machine channel
constituents; date, month and year of fixation; displayed tariff
number; marker DAY; phase voltage presence markers.
Figure 5.3
In Figure 5.3 reactive (R) imported (|) energy value (0000.047
kVArh) of the fourth calculating machine channel () progressive
total fixed in the end of March, 17 2006 (17:0306) by the second
tariff (tariff 2) is given. If the date value is equal to 00:0000,
the days metering data is absent.
Additionally the phase voltage presence is indicated (Phase
ABC). Index mark flashing informs of phase voltage value outside
set access.
View of calculating machine channel progressive total readings
in the end of the previous day is accomplished by the short-time
pressing the button SHOT (only 46 days).
The button Scroll short-time pressing gradually switches
calculating machine channel consumed energy end-day indication with
progressive total per tariff (8 tariffs in total).
The button Scroll long-time pressing gradually switches
different calculating machine channels consumed energy end-day
indication with progressive total (6 channels in total). 5.2.4
Group AVERAGE POWER MAXIMUMS
Average power maximums (averaged in a set interval) of
calculating machine channels registered per tariff during a
calendar month are displayed.
On LCD the following data is displayed: average power maximum of
calculating machine channel in a set interval; label number and
calculating machine channel constituents; date and time of the
month maximum fixation; displayed tariff number;
TARIFF PHASE
DAY
kVARh
R
-
marker PREV.
Figure 5.4
Figure 5.5
In figures reactive (R) exported (|) power maximum (73.020
kVArh) of the third calculating machine channel () fixed on March,
20 2006 (20:0306) (Figure 5.4) by the third tariff (tariff 3) with
the beginning of averaging time at 12.10 oclock (Figure 5.5) is
given. Date and time are displayed alternatively with 2 s interval.
If the date day value is equal to zero, the given tariff month
maximum was not fixed.
View of calculating machine channel maximum power readings for
the previous month is accomplished by the short-time pressing the
button SHOT (only 13 months).
The button Scroll short-time pressing gradually switches
calculating machine channel power maximums indication per tariff (5
tariffs in total).
The button Scroll long-time pressing gradually switches
different calculating machine channels power maximums indication (6
channels in total).
5.2.5 Group FORECASTING POWER On LCD the following data is
displayed:
forecasting power of calculating machine channel since current
averaging period till current time; label number and calculating
machine channel constituents; time before the end of the averaging
period current tariff; marker set power limit exceedence; marker
pulse output is active in case of power limit exceedence
Figure 5.6
In the figure forecasting active (A) exported (|) power value
(1.7452W) of the first calculating machine channel () for 5 min 17
s (05:17) before the time of averaging expiration,
TARIFF
VAr
RPREV
TARIFF
VAr
PREV
R
W
TARIFF
-
set power limit exceedence with control signal generation to
pulse output are given, the fourth tariff is active (tariff 4).
Every minute (value of seconds = 0) the calibration is carried out
and in case of power limit exccedence marker is displayed. The
marker indicates control signal appearance at the pulse output. The
button Scroll short-time pressing gradually switches different
calculating machine channels forecasting power values indication (6
channels in total). 5.2.6 Group SERVICE INFORMATION
The button Shot short-time pressing gradually switches
indication in the group (3 subgroups in total).
1) Subgroup RELEVANT INFORMATION On LCD the data given in Figure
5.7 is displayed: current time 09:3052 hours, minutes, seconds;
current date 29-03-06 real time clock day, month, year; weekday Wed
- real time clock; current tariff tariff 2; current direction IV
quadrant; indexes A, B, C phase voltage presence; marker S summer
time; marker c clock rate correction 30 s is allowed; marker pulse
output is active in accordance with current tariff.
Figure 5.7
Phase index absence informs of voltage absence in a phase
(voltage is less than 5% Unom). Phase index flashing informs of
phase voltage outside the set access. For each phase the quadrant
of apparent power phasor position is defined. Current direction
indicates obtained quadrants for all phases:
| AP | - quadrant I; | AP | - quadrant II; | AP | - quadrant
III; | AP | - quadrant IV. The meter allows manual clock rate
correction once a day. The button SCROLL long-
time pressing in case of c marker presence leads to not
exceeding 30 s value clock rate correction, with the correction
allowance marker disappearing. The correction allowance marker will
appear again at the beginning of another day.
If the button SCROLL will be pressed for up to 30 s, second
values will be set to zero (time s is corrected with the sign -).
If the button SCROLL will be pressed for more than 30 s, second
value will be equal to 59 (the time s is corrected with the sign
+).
It is necessary to consider the correction is carried out
approximately in a second after the button pressing.
2) Subgroup INTERFACE PARAMETERS On LCD the data given in Figure
8 is displayed: 2 interface number;
TARIFF
PHASE ABC
Wed(C) Wed(C) Wed
c S
AP
-
01:0005 active protocol (01=GOST IEC 61107-2001), initial
(00=300 baud) and operating (05=9600 baud) exchange speed via
interface;
10s interface activity time; 200 interface response delay time,
ms.
Figure 8
The initial exchange speed may be set only manually. To change
the initial exchange speed it is necessary to go into the mode of
initial speed choice (flashing of value) by the button ACCESS
short-time pressing. By the button SCROLL short-time pressing
choose the required speed value:
0 = 300 baud; 1 = 600 baud; 2 = 1200 baud; 3 = 2400 baud; 4 =
4800 baud; 5 = 9600 baud; 6 = 19200 baud; 7 = 38400 baud; 8 = 57600
baud; 9 = 115200 baud. By the button ACCESS short-time pressing go
out of the initial speed choice mode. The button SCROLL short-time
pressing gradually switches indication of different
interfaces parameters (2 interfaces in total). 3) Subgroup
EXTERNAL TRANSFORMERS AND INTERVAL The button SCROLL short-time
pressing gradually switches indication of parameters: FU voltage
transformer transformation ratio; FI current transformer
transformation ratio; :03 meter model (5A, 220V) P1.2 t30M meter
program version 1.2 and averaging time duration 30 min. 5.2.7 Group
NETWORK QUALITY PARAMETERS The button SHOT short-time pressing
gradually switches indication in the group (11
subgroups in total). Inside a subgroup the button SCROLL
short-time pressing switches indication of parameter value for
different phases (indexes A, B, C) and total three phase network
value (index ABC).
1) Subgroup Active Voltage Input end phase voltage MRS values
are displayed in V (kV, MV). 2) Subgroup Active Current Input end
phase current MRS values are displayed in A (kA, MA). 3) Subgroup
Active power Active input end phase and three-phase network powers
are displayed in W (kW, MW). 4) Subgroup Reactive Power Reactive
input end phase and three-phase network powers are displayed in VAr
(kVAr,
MVAr).
s
-
5) Subgroup Apparent Power Apparent input end phase and
three-phase network powers are displayed in VA (kVA,
MVA). 6) Subgroup Power Loss Active input end phase and
three-phase network power losses are displayed in W (kW,
MW). 7) Subgroup Angle between current and voltage vectors
Angles between phase current and voltage are displayed in the range
180 Degrees. 8) Subgroup Active Power Factor Active phase and
three-phase network power factors are displayed, marker COS. 9)
Subgroup Reactive Power Factor Reactive phase and three-phase
network power factors are displayed, marker Sin. 10) Subgroup
Network Frequency Three phase network frequency is displayed in Hz.
11) Subgroup Angle between voltage vectors Angles between voltage
vectors of different three-phase network phases in the range
180 Degrees. Negative angle values display incorrect phase
sequence. Markers for phase angles indexes AB, BC, AC.
5.2.8 Group PULSE INPUTS On LCD the data given in Figure 5.9 is
displayed: displayed pulse input number; pulse quantity metered via
pulse input; marker TOTAL; marker pulse input closed condition.
Figure 5.9
Pulse quantity (5873) metered via pulse input 3 is given in the
figure, the input is closed. The button SCROLL short-time pressing
gradually switches indication of different pulse inputs (4 inputs
in total).
5.3 Information Messages During meter operation on LCD mnemonic
and text messages about meter mode
conditions are displayed (irrespective of displayed data). 5.3.1
Mnemonic Messages Such messages appearance doesnt disturb the
displayed data. 1) Marker ERR The basic meter power is absent the
voltage in all phases is not sufficient for power unit
PU operation, the meter operates with back-up power. In this
mode data read-out from LCD or via interfaces is possible.
2) Marker
Session of communication via interfaces.
TOTAL
-
3) Tariffication is absent, real time clock failure. Disappears
after new time value
registration via interfaces. 4) Marker Clock power lithium
element replacement is required. 5) Marker Power limit is exceeded.
5.3.2 Text Messages
The meter displays on LCD text messages that may be divided into
several groups.
1) Meter Condition Messages. ACCES appears after pressing the
button ACCESS and informs about
allowance of parameter registration via interfaces programming
mode. Disappears on countdown expiration, by the button ACCESS
repeated pressing or parameters registration via interfaces.
CLEAr appears after the button SCROLL short-time pressing only
in case the text ACCES is displayed and informs of sanitization
allowance Cls 4.5.14, 4.5.15. disappears on countdown expiration or
by sanitizing.
OPtO appears after optical head connection out of communication
session via additional interface (COM2) and informs about
possibility of exchange via optical port (OP). Disappears on
countdown expiration or while exchange via OP. For OP reclosing it
is necessary to disconnect and reconnect OP to the meter. In case
OP is active, exchange via additional interface (COM 2) is
impossible.
2) Messages about interface exchange errors. This message group
is indicated during two seconds. Messages with numbers more
than
10 are output via interfaces as well. Err 03 Wrong password
means that during programming the password not
matching the back-end passwords was entered. Enter a valid
password (for the second or third attempts). The message is not
output via interfaces.
Err 04 Interface exchange failure means that during interface
exchange the failure took place or meter interface part or
connected device is out-