Seminar Starting Squirrel Cage Motors March 99 SOLCON
Jan 20, 2016
SeminarStarting Squirrel Cage Motors
March 99SOLCON
SOLCON
Electronic soft starters
Part Presentation Slides
1 Starting AC Motors 3 - 22
2 Electronic soft starters 23 - 36
3 Digital soft starter “RVS-DN” 37 - 132
4 Analog soft starters “RVS-N“ 133 - 139
5 Analog soft starter “Solstart” 140 - 143
SOLCON
Starting the motor
Three basic methods for starting squirrel cage motors :
* Full voltage - Direct On Line (D.O.L.)
* Reduced voltage - Electro mechanical methods
* Reduced voltage - Electronic methods
SOLCON
Direct On Line (D.O.L.) Starting
Starting Voltage - Full voltage at starting 100% Un
t
Un
SOLCON
Starting Current - Typically 500-800% In, depends on motor design.
RPM
In
Istart
Direct On Line Starting
SOLCON
* Starting Torque (M start) - Typically 150 - 180% Mn
* Max Torque (Mmax) - Break Down Torque can reach 220% Mn
Mstart
RPM
M operationMn
Mmax
Load
Direct On Line Starting
SOLCON
Acceleration Torque - The difference between motor and load torque's,
determines the Acceleration Time.
M load
M acceleration
Direct On Line Starting
SOLCON
Start Time - the high Acceleration Torque results in fast acceleration of
motor speed, typically less than 1 sec.
Nn
t
Direct On Line Starting
SOLCON
Direct On Line Starting
1 sec.
Current Inrush
SOLCON
Mechanical Shock
1 sec.
Direct On Line Starting
SOLCON
Reducing Starting Current & Torque
Reducing Inrush Current is essential :
* When starting from weak power supplies like fully loaded transformers, long cables, diesel generators, etc.
Reducing mechanical shock is essential :
* To increase life expectancy of belts, gears, shafts and motors.
* To reduce maintenance requirements
* To prevent damage to fragile loads
SOLCON
Reducing Starting Current & Torque
* Reducing Inrush Current & Mechanical Shock in squirrel cage motors
can be done by reducing motor voltage during starting
* Reducing voltage during starting can be done by the old electro-
mechanical systems like Star-delta, Auto-transformer, Part winding,
Starting Resistors or by modern Electronic Soft Starters
SOLCON
Reducing Starting Voltage
When Starting Voltage is reduced:
* Starting torque is reduced in square proportion to voltage reduction
* Starting current is reduced in direct or square proportion to voltage
reduction - depending on starting method
SOLCON
Direct On Line - Summary
Advantages: Simple, Small size, Low price.
Disadvantages:
* High inrush current 500-850% In which may cause voltage drops in
supply system, nuisance tripping & light dimming.
* High starting torque 150-250% Mn which may cause mechanical
damages to gears, transmissions and fragile loads.
Pri
ce fa
ctor
: 0
.2 -
1 ti
mes
Sof
t sta
rter
SOLCON
Y/D Starting
Starting voltage - Y connected (58% Un), transfer to Delta (100% Un)
by timer - open loop control.
t
U Y = 58% Un
YYUn
U Y
transferpoint
SOLCON
Y/D Starting
Starting Current - Typically 250% In, current is reduced in square
proportion to voltage reduction
RPM
I Y
I start
DOL
YY
Transfer point
Reduced Starting Current
SOLCON
Y/D Starting
Starting Torque - Reduced by the square proportion to voltage reduction,
the voltage remains constant during most of the starting time.
M start Y = (0.58)2 x M start (A.T.H) = 0.33 x M start
RPM
M operation
M Y
M acceleration
YY
M
DOL
Reduced Starting & Acceleration Torque
SOLCON
Y/D Starting
Start Time - Extended acceleration time due to lower acceleration torque
Y/Nn
t
D.O.L
SOLCON
Y/D Starting - Current Inrush
1 sec.
current spike during transfer from Y to D (especially in varying type loads)
SOLCON
Y/D Starting - Summary
Advantages: Simple, Small size, Inexpensive (in lower ratings),
Lower starting currents.
Disadvantages:
* Non-adjustable starting characteristics
* Possible high switching current & torque (expensive closed transition)
* Open loop control
* 6 wires to the motor
* No optional features (only soft start)
* No motor protection.Pri
ce fa
ctor
: .6
- 2
tim
es S
oft s
tart
er
SOLCON
Auto-transformer Starting
Advantages: Lower starting currents.
Disadvantages:
* Bulky
* Expensive
* Limited number of operations per hour
* Complicated change of starting parameters
* Switching transients - expensive closed transition.
Pri
ce fa
ctor
: 1
- 2
tim
es S
oft s
tart
er
SOLCON
Electronic Soft Starters
Using 6 Thyristors (SCRs), 2 per phase, in an anti-parallel connection
3
L1
L2
L3
SOLCON
Thyristors (SCR’s) firing system
The left thyristor conducts during
the positive period of the sine wave,
when Vc is On and can be turned
Off when the current is at zero
crossing.
Vc
SOLCON
Thyristors (SCR’s) firing system
The other thyristor is coupled in an
anti-parallel method and conducts
in the negative half cycle.
Vc
SOLCON
Thyristors (SCR’s) firing system
Thyristor firing controls the soft starter output voltage
U start
Zero Crossing
t soft start
Phase Control
SOLCON
Voltage Ramp-up
Voltage ramp-up (without Current Limit)
t soft start
Time
Voltage ramp
Un
U1
t2 t3 t4t1
U2
U3
U4
U start
SOLCON
Current Ramp-up
Current Ramp-Up (without Current Limit)
Current with Soft-starter
RPM
In
I soft
I start
SOLCON
Current ramp-up with Current Limit
Voltage & current increases until the current reaches Current Limit.
The Voltage will not increase until current begins reducing, as the motor
approaches nominal speed.
I n
4 XCurrent
Limit
RPM
I start
t soft start
Time
Currentlimit
Un
U start
SOLCON
Calculating motor’s torque
Motor torque with soft starter M
soft = ( U soft / U n ) 2 * M start
Assuming M start = 1.8 * M n
Assuming U start =0.5 Un (0.25 Un)
M soft = (0.25) * 1.8 = 0.45 M start
Torque is reduced by the square of the voltage reduction
SOLCON
Motor Voltage / Torque Ratio
RPM
M D.O.L
M
TU5
TU3
TU4
TU6
TU2
TU1
t6t2 t3 t4 t5t1
V
U5
U3
U2
U1
t2 t3 t4 t6t1 t5
U4
SOLCON
Torque with & without Current Limit
Torque / Voltage curves with and without Current Limit
with current limit
M max
RPM
Mn
M saddleM start
without current limit
SOLCON
Soft Starter - Current Inrush
with current limit
1 sec.
SOLCON
Soft Starter - Mechanical shock
1 sec.
SOLCON
Summary
Mot
or t
orqu
e
D.O.L Y / Soft-starter
Mot
or c
urre
nt
Mot
or t
orqu
e
SOLCON
Soft starter - summary
Disadvantages: Relatively expensive, higher sophistication
Advantages:
* Solid state - no moving parts, less maintenance
* Reduced starting current & mechanical shock
* Smooth, stepless acceleration & deceleration
* Closed current loop starting
* Easy adjustments for all applications
* Comprehensive motor protection package
* Special features: “Pump Control”, Soft stop, Slow speed with
electronic reversing, Dual adjustment, Energy saver, etc.
SOLCON
Soft Starter Line
RVS-DN Digital 8-2700A 220 - 690V RVS-DN “ 105-390A 1000V RVS-DN “ 8-2700A Marine Type HRVS-DN “ 60 - 800A 1500-7200V RVS-N Analogue 8-170A 220 - 600V SOLSTART “ 8-17A 220 - 690V SEM-N (navy) “ 8-31A 220 - 440V
SOLCON
RVS-DN Digital Soft Starters
for Heavy Duty Industrial Applications
SOLCON
The RVS-DN family
Size B Size D Size A Size C55 - 90 KW 250 - 450 KW 4 - 37 KW 110 - 220 KW
SOLCON
RVS-DN Advantages
Heavy Duty Design: 400% In, 30 sec. at 50°C, 4 starts an hour Comprehensive Range: 8-2700A, 220-1000V Second Generation Digital Field proven experience Fully featured: Control, Protection & Supervision Comprehensive Motor Protection User Friendly: Default settings, LCD display, Selectable languages
SOLCON
RVS-DN Approvals
cUL
UL
cUL Approved : 8-820A1100A and above are designed to meet cUL requirements
CE Approved (EMC & Safety) : 8-1400A1800A and above are designed to meet CE requirements
Lloyd’s Approved (ENV 1 & ENV 2) : 8-1400A1800A and above are designed to meet Lloyd’s specifications for ENV1 & 2 requirements
UL Approved : 8-820A, 1100A and above are designed to meet UL requirements
Marine & Offshore
Canada
European
USA
SOLCON
Selector GuideStarter Frame Motor HP
Type Size 230V 460V 575V
RVS-DN 8 A 2.5 5 7.5
RVS-DN 17 5 10 15
RVS-DN 31 10 20 30
RVS-DN 44 15 30 40
RVS-DN 58 20 40 50
RVS-DN 72 25 50 60
RVS-DN 105 B 40 75 100
RVS-DN 145 50 100 125
RVS-DN 170 60 125 150
RVS-DN 210 C 75 150 200
RVS-DN 310 125 200 300
RVS-DN 390 150 300 350
Starter should be selected according to motor’s Full Load Amp and starting conditions
SOLCON
Selector Guide
Starter Frame Motor HP
Type Size 230V 460V 575V
RVS-DN 460 D 200 400 450
RVS-DN 580 250 500 550
RVS-DN 820 300 700 900
RVS-DN 1100 E * 450 900 1100
RVS-DN 1400 500 1100 1500
RVS-DN 1800
RVS-DN 2100 F *
RVS-DN 2700
Starter must be selected according to motor’s Full Load Amp and starting conditions
* To be used with a by-pass contactor
SOLCON
RVS-DN Block Diagram
M* Tachometer in
Firing circuitry
I measurements
Inputs(Prog.)
LCD
Display
Power
Supply
DisplaySCRs
V measurements
* RS-485 Comm.
* Thermistor in
* Insulation
* Analogue Out
StatisticsFaults
Keypad
LEDs
Outputs(Prog.)
MICRO
PROCESSOR
Preparation
Remain ActiveAll ProtectionFor By-pass
Options : Memory :
Isolated
Relay
SOLCON
Size A (8-72A)
To Motor
Control terminals (Plug-in)
LCD (selectable languages)
To by-pass (option)
Line
LEDs (status display)
IP 20
Finger protected for safe operation
SOLCON
Size B (105-170A)
Control Module (Identical for sizes B-F)
(Bus bar coverremoved)
To Motor
Line
PowerSection
Front protected for safe operation
SOLCON
Size C (210-390A)
ControlModule
PowerSection
To MotorLine
(Bus bar coverremoved)
C/T
Front protected for safe operation
SOLCON
Preparation for By-pass
LineTo motor To by-pass
C / T
SOLCON
Preparation for By-pass
M
L 2 L 3L 1
SOLCON
Size D (460-820A)
Load Line
C/T
Controlmodule
Powersection
(Bus bar coverremoved)
SOLCON
Size E (1100-1800A)
ControlModule
PowerSection
C/T
To Motor
Line
SOLCON
Control Module (identical for sizes B-E)
* Insulation Test board* Analogue board* Tacho encoder board (only one)
Communication Board RS 485 (MODBUS)
Control Supply I / O
Optional boards:
PowerSupplyBoard
Control Transformer
ControlPlug
Dip Switch
E PROM
SOLCON
Dip switch
OF
F1 2 3 4 5 6 7 8
No. Function OFF (default) ON
1 Display Minimum Maximum
2 Tacho feedback Disabled Enabled
3 Mains / Generator Mains Generator
4 Always OFF
5+6 Language selector English, French, German, Spanish
7 Extended range Disabled Enabled
8 Software lock Open Locked
SOLCON
Front panel Keypad, LCD & LEDs
6 keys, menu driven software, default parameters
Digital Reduced Voltage Starter RVS-DN
Mode
StoreReset
Select
On
StartRunS.StopStopE.Save / SlowD. Adj. / Rev. Fault
CURRENT LIMIT400% 8 LEDs for
quick status
display
Two lines - 16 characters each, Back light (optional) Selectable languages - English, German, French, Spanish Motor data, Parameter setting, Fault diagnostic, Statistical data
SOLCON
Start & Stop Parameters
Initial Voltage Current Limit Acceleration Time (Ramp-up Time) Deceleration Time (Ramp-down Time) - Soft Stop Pump Control Dual Adjustments Pulse start Diesel Generator Starting
SOLCON
Initial Voltage
Initial Voltage - determines the Initial Torque (the Torque is reduced in the square proportion of the voltage reduction).
Adjustable : 10-50% (80%) Un, should be set for the motor to start turning immediately after Start signal is initiated
10%
Initial Voltage
50%
Un
SOLCON
Acceleration Time
Acceleration Time - Determines the Voltage Ramp-up Time, from Initial to Full Voltage.
Adjustable :1-30 (90) sec. Set to the shortest acceptable time.
Time
Voltage Ramp-up Time
Un
U start
30 sec2
SOLCON
Current Limit
Current Limit - Determines the maximum current during acceleration process and the acceleration time to full speed.
Adjustable :100-400% (500%) I FLA, Set to the highest acceptable current.
Current
Limit
U start
t soft start
U C. L
U1
Un
I start
RPM
400%
100%
SOLCON
Current limit / Start time Ratio
Lower Current Limit => longer Start Time
Time
4 x In
5 10 15 20 25 30
In
3 x In
SOLCON
Deceleration Time “Soft Stop”
Deceleration Time - Determines the Voltage Ramp-down Time, from Un to zero.
Adjustable: 1-30 (90) sec. Set to the shortest acceptable time.
Un
Speed
Deceleration Time
2 30 / 90 sec
SOLCON
Pump Control Program
Designed to eliminate Over-Pressure during starting. Water-Hammer during stopping.
Imperative when pumping to higher elevations or into a high pressure pipe system
SOLCON
Pump Starting D.O.L.
When starting D.O.L high Acceleration Torque causes rapid increase in
pump speed, fast change in flow & consequently high Pressure.
The high pressure in the pipe system may result in damage to pipes, fittings,
joints, etc.
Time
Torque
M start
Accel.Torque
Motor(D.O.L)
Voltage
Speed
Load
Speed
Time
SOLCON
Standard Soft Starters
When starting with a standard soft starter - Starting Torque is reduced
drastically, however Peak Torque still remains high, causing high
Acceleration Torque towards the end of the starting process. Peak &
Acceleration Torque must be reduced to extend the Acceleration time.
Time
Voltage
With softstarter
SlowAccel.
Speed
Time
Torque
M start
Accel.Torque
D.O.L
Speed
Loadsoft starter
SOLCON
RVS-DN Pump Control
Pump Control “Start Curves” - Three special voltage ramp-up curves
to reduce peak torque & extend Acceleration time.
Adjustable: 1-3 Curves, set as required
Time
Vol
tage
Area of Pump Control start curves
With soft starter
Spe
ed
Time
1 2 3DOL
0T
orqu
e
3
Speed
D.O.L
2
1
0
SOLCON
Pump Stopping
When stopping with a D.O.L starter - speed is quickly reduced and flow
abruptly stopped. This may cause a Water Hammer (mechanical shock and
audible noise) with severe damage to pipes, joints, fittings, valves, etc.
DOL opens
Un
Speed
SOLCON
Pump Control - Stop Curves
Stopping with a standard soft starter - when pumping to a higher
elevation, motor torque may quickly fall below load torque (as torque
decreases at the square of voltage reduction). This may cause abrupt
stalling instead of smoothly decreasing speed to zero, creating the Water
Hammer phenomenon.
Stalling pointUn
Speed“Soft stop”
SOLCON
RVS-DN Pump Control
Pump Control “Stop Curves” - enables selection between 3 special voltage ramp-down curves preventing stall condition and eliminating Water Hammer.
Adjustable:1-3 Curve, Set as required
TimeTime
Vol
tage
Area of Pump Control stop curves
With soft starterS
peed
1 2 3DOL
0
Tor
que
3
Speed
D.O.L
2
1
0
SOLCON
Pump Control - Final Torque
Final Torque - enables setting a point where motor stops when the valve closes - Before reaching end of deceleration, motor torque is lower than load torque and the valve closes, however motor may continue running.
Adjustable: Min-Max., Set as required
Time
Check Valvecloses and motor stops
Vol
tage
Spe
edArea of Pump Control Final Torque
TimeDOL
SOLCON
Dual Adjustment
Two sets of parameters - for Variable Loads, Two Speed Motors and D.G. starting
Adjustments: Initial Voltage Current Limit Acceleration Time Deceleration Time Motor FLA Starting Mode (Utility or D.G)
Dual AdjustCharacteristic
Vol
tage
Time
StandardCharacteristic
SOLCON
Energy Save
Energy Save - potential saving and P.F. improvement on lightly loaded motors .
Adjustable: 0-10 (Min-Max) .
Note - may require filter to meet CE requirement (European)
I motor
time
In
Un
SOLCON
Slow Speed
Slow speed - Motor operates at 1/6 Nn, Forward or Reverse (no contactors required)
Adjustments: Torque at Slow speed 1 - 10 (Min-Max) Max time 1 - 30 sec.
Speed
1/6 Reverse
Max. Slow Speed Time 30 Sec.
Nn1/6 Forward
Applications
* Positioning
* Sewage pumps
SOLCON
Pulse start
Un
time
0.1 - 1 sec.
Pulse start - a pulse of 80% Un (without Current Limit) to break free high friction / inertia loads.
Adjustable: Pulse Time 0.1 - 1 sec.
SOLCON
Tacho feedback
Tacho Feedback - for linear acceleration of special loads Adjustable : Consult factory
Applications
* Conveyor belts
Voltage
Speed RPM+10 DC
SOLCON
Starting from a Diesel-Gen.
When starting from older D.G. sets (especially those equipped with low cost Voltage Regulators) both voltage and frequency are unstable, causing irregular firing of the thyristor. The RVS-DN is equipped with a special program overcoming the voltage and frequency instability.
To operate Gen. Mode set Dip Sw. 3 to On and energize the Dual Adjustment Terminal. When operating in Generator mode, motor must be loaded.
When motor can operate from Mains and D.G (stand-by D.G) set Dip Sw. 3 to On. However, Dual Adjustment Terminal should be energized only when D.G. is running.
SOLCON
Motor & Starter Protection Before During During During
Starting Starting Running Stopping Motor Insulation (optional) + - - - Motor not connected + - - - No. of starts & Start Inhibit - + - - Too long start (Stall) - + - - Phase Loss - + + - Phase reversal - + - - Under / Over Voltage - + + - Under Current - - + - Shear-pin (Instantaneous) - + + + Over Current (O/L) - - + - External Fault - + + - High Motor Temp (optional) - - + - Shorted SCR + - - - Starter over-temp. - + + +
SOLCON
Low Motor Insulation (optional)
Motor Insulation (optional) - tests motor insulation level when motor is not running (requires a Line Contactor or disconnecting a Line C/B etc. ).
Adjustments: Alarm Level: 0.2 - 5 Mohm, Set as required Trip Level: Off, 0.2 - 5 Mohm, Set as required
Applications* Submersible pumps* Harsh environments* Motors not running for a long period of time.
SOLCON
Motor Temp. (optional)
Motor Thermistor Input - Over Temp Protection (option, in place of Insulation Card)
Adjustments: Thermistor type: PTC or NTC Trip Level: Off, 0.1 - 10Kohm
Note - the Analogue card contains also Analogue Output, related to motor’s current (0-10VDC, 4-20mA, 0-20mA)
SOLCON
Excessive starts
Max. Number of Starts - preventing excessive starts during a short period of time.
Adjustments: Permitted Number of Starts: Off, 1- 10 Start period: 1- 60 min. Start Inhibit Time (after Too Many Starts): 1- 60 min.
SOLCON
Stalled Motor
Max. start time - Preventing Stall condition, trips the starter if current is not reduced below Motor FLA within the adjusted time.
Adjustments: 1-30 (240) sec.
Max. Starting Time
Starting
current
2010 30
SOLCON
Jam Protection
Jam Protection - Trips the starter in less than 1 cycle when current exceeds 850% IFLA.
Trip
850% IFLA
Applications* Conveyors* Agitators* Complex Machinery
SOLCON
Shear-pin Protection (“Immediate Relay” set to “Shear-pin”) - Stops (no trip) the motor when current exceeds the set level, with an adjustable time delay.
Adjustments: Trip Current 200 - 850% Motor FLA (during starting 850%) Shear-pin Delay 0.5 - 5 sec (no delay at 850%)
Trip
850% IFLA
Electronic Shear-pin
Applications
* Shredders
* Complicated drive systems
SOLCON
Electronic Shear pin
Williams Tire Shredders* When system was jammed the electronic ammeter sent a signal to the PLC which tripped the Forward Contactor and closed the Reverse. * The Forward Contactor was quickly damaged by the high opening currents.
A
PLC Rev.For.
G ShredderElectronic Ammeter M
SOLCON
Electronic shear-pin (Williams Shredder)
The “Immediate Relay” is designated as “Shear-pin”, upon Jam (delayed up to 5 sec) the starter will stop (no trip) and signal the PLC. The Forward Contactor will open under no-current, the Reverse Contactor will close and the soft starter will be re-started.
L N
1 2 3 4 5 6 7 8 9 10 11 12
Shear-pin
M
For.
PLC C/B
RVS-DN
Rev.
SOLCON
Overload
Electronic overload - with selectable curves Adjustments:
O/L Trip level: 75-150% I FLA
Trip Time at 500% I FLA: 1-10 sec
150%
10 sec
t
75% 500%
1 sec
I115%
trip time at 500% FLA
O/L setting
SOLCON
Under Current
Under current - Trips the starter when current decreases below the U/C Trip level after the selectable time delay. Under current auto reset allows for restarting after a predefined period of time, to re-check the under current status.
Adjustments: Trip Current: Off, 20-90% I FLA
Trip Delay 1-40 sec.
Start
I FLA
20%
40 sec.
80%
20
90%
2
Applications* Dry running pumps* Broken belt / gear* Closed air inlet (fan)
SOLCON
Under / Over Voltage
Under Voltage - Trips the starter when voltage drops below the U/V Trip level after the selectable time delay. With programmable auto-reset.
Adjustments: Trip level 120-600V (Line - Line) Trip Delay 1-10 sec.
Over Voltage - Trips the starter when voltage increases above the O/V Trip level after the selectable time delay.
Adjustments: Trip level 150-750V (Line - Line) Trip Delay 1-10 sec.
SOLCON
Phase Loss & Wrong Sequence
Phase Loss - Trips the starter when one or two phases are missing for over 1 sec. With programmable auto-reset.
Phase Sequence - Trips the starter when phase sequence is wrong Adjustments : Protection Enabled / Disabled
SOLCON
Motor Not Connected
Wrong Connection - Trips the starter if motor is not connected to starters’ Load terminals, 1,2 or 3 wires.
* When motor is connected, voltage between phases will be approx 3V.* When motor is not connected, voltage between phase will be full voltage.
C
R
400V
SOLCON
External Fault
External Fault - Trips the starter 2 sec. after the contact closes.
Applications* Water level for pumps* Oil level for compressors
RVS-DN
SOLCON
Soft Starter Fault
Shorted SCR - Prevents starting when one or more SCR have failed (short circuited)
When SCRs fail, there is a short circuit between Line and Load of the same phase.
C
R
SOLCON
Fault & Resetting
Upon fault The starter trips and locks in fault mode The “Trip” LED lights up The LCD displays fault cause (Shear-Pin) The Fault Relay changes position The Immediate & End of Acc. Relays return to original position Same data is transmitted through the RS 485 The starter records fault current in statistical parameters
Resetting after fault removal Front panel - Reset key, Hard wire - Terminals 7 or 8, RS 485 Possible only after Start signal is removed
SOLCON
Soft Starter Fault
Heatsink Over temperature - Trips the starter when heatsink temp. rises above 85°C.
SCR Protection: by MOVs (Metal Oxide Varistors)
SOLCON
Control wiring
L N
Control Supply can be 115 or 230VAC - must be specified(By special order, DC voltage may be supplied for sizes B-F)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
Com
mon
Neu
tral
Sof
t Sto
pS
top
E.S
ave
/ Slo
w /
Res
et
D. d
just
/ R
ever
se /
Res
et
Sta
rt
SOLCON
Control Wiring
Control Supply
PowerSupplyBoard
Control Transformer
ControlPlug
SOLCON
Control Supply
Internal Jumper* When connected to A - fan (s) will operate as long as Control Supply is connected to Terminals 1-3 * When connected to B - fan (s) will operate when Control Supply is connected to Terminal 2 (for example through a N.C. contact of the by-pass contactor)* When connected to C - Fan (s) will operate when relay A closes (Automatically upon start signal, stops 5 min. after stop signal or when by-pass contactor closes.
Notes : 1. It is recommended to leave at factory default (A).2. For size A, 44-72A, modification should be done by a field technician.
2
L1 N
BA C
31
Jumper
R
SOLCON
Control wiring
!
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
Sto
pS
oft S
top
Sta
rtE
.Sav
e / S
low
Sp
/ Res
et
D. A
djus
t / R
ev. /
Res
etC
omm
on
Ext
erna
l Fau
lt
Tac
ho fe
edba
ck
Neu
tral
Aux
Con
tact
“
Fau
lt”
Aux
Con
tact
“End
of A
cc.”
Aux
Con
tact
“Im
med
iate
”
SOLCON
Control wiring
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
Neu
tral
N or Gr. (1)
(1) For Mains system with Ground and / or Neutral - connect Terminal 21 to N or Gr.
(2) For Mains system without Ground and Neutral - leave Terminal 2 open
NN
SOLCON
Control wiring
L N Same voltage for Control Supply (1-3) and Control Commands (4-9)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
Com
mon
Neu
tral
Sof
t Sto
pS
top
E.S
ave
/ Slo
w /
Res
et
D. A
djus
t / R
ever
se /
Res
et
Sta
rt
SOLCON
Control wiring
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
Com
mon
Neu
tral
Different voltages for Control Commands (4-9)can be AC or DC (must be specified)
Sof
t Sto
pS
top
E.S
ave
/ Slo
w /
Res
et
D. A
djus
t / R
ever
se /
Res
et
Sta
rt
Control Command voltage
NL
SOLCON
Control wiring - Start / Stop
Motor will soft start when C closes and stop immediately when C opensL N
1 2 3 4 5 6 7 8 9
Com
mon
Sof
t Sto
p
Sto
p
E.S
ave
/ Slo
w /
Res
et
D. A
djus
t / R
ev. /
Res
et
Sta
rtC
SOLCON
Control wiring - Start / Stop
Motor will soft start when C closes and soft stop when C opensL N
1 2 3 4 5 6 7 8 9
Com
mon
Sof
t Sto
p
Sto
p
E.S
ave
/ Slo
w /
Res
et
D. A
djus
t / R
ev. /
Res
et
Sta
rtC
SOLCON
Control wiring - Start / Stop
Push-button operation - Motor will soft start when C closes, soft stop when C1 opens and stop immediately when C2 opensL N
1 2 3 4 5 6 7 8 9
Com
mon
Sof
t Sto
p
Sto
p
E.S
ave
/ Slo
w /
Res
et
Sta
rtC2 CC1
D. A
djus
t / R
ev. /
Res
et
SOLCON
Control wiring - Start / Stop
1 2 3 4 5 6 7 8 9
Com
mon
Sof
t Sto
p
Sto
p
E.S
ave
/ Slo
w /
Res
et
Sta
rt
C
L ND
. Adj
ust /
Rev
. / R
eset
SOLCON
Control wiring - Energy Save
L
Energy Save will operate when Terminal 7 is designated as Energy Save and C closes. For automatic operation use a jumper.
1 2 3 4 5 6 7 8 9
Com
mon
Sof
t Sto
p
Sto
p
E.S
ave
/ Slo
w /
Res
et
Sta
rt
N
C
D. A
djus
t / R
ev. /
Res
et
SOLCON
Control wiring - Slow speed
Slow Speed will operate when Terminal 7 is designated as Slow Speed and C closes before motor starting.
1 2 3 4 5 6 7 8 9
Com
mon
Sof
t Sto
p
Sto
p
E.S
ave
/ Slo
w /
Res
et
Sta
rt
L N
C
D. A
djus
t / R
ev. /
Res
et
SOLCON
Control wiring - Remote Reset
L* Remote (hardwire) Resetting will operate when Terminal 7 or 8 are designated as Reset and C1 or C2 close
1 2 3 4 5 6 7 8 9
Com
mon
Sof
t Sto
p
Sto
p
E.S
ave
/ Slo
w /
Res
et
D. A
djus
t / R
ev. /
Res
et
Sta
rt
N
C2C1
SOLCON
Control wiring - Dual Adjustment
Dual Adjustment (secondary parameter setting) will operate when Terminal 8 is designated as Dual Adjust and C1 closes. L
1 2 3 4 5 6 7 8 9
Com
mon
Sof
t Sto
p
Sto
p
E.S
ave
/ Slo
w /
Res
et
D. a
dju
st /
Rev
erse
/ R
e.
Sta
rt
N
C
SOLCON
Control wiring - D.G. Program
D.G. Program will operate when Dip Switch 3 “Generator” is set to On, Terminal 8 is designated as Dual Adjust and C1 closes. L
1 2 3 4 5 6 7 8 9
Com
mon
Sof
t Sto
p
Sto
p
E.S
ave
/ Slo
w /
Res
et
D. A
dju
st /
Rev
erse
/ R
e.
Sta
rt
N
C
SOLCON
Control wiring - Slow speed Reverse
Slow Speed Reverse will operate when Terminal 7 is designated as Slow Speed, Terminal 8 is designated as Reverse and when closing C1 (before starting) and C2 (before or during motor running) L
1 2 3 4 5 6 7 8 9
Com
mon
Sof
t Sto
p
Sto
p
E.S
ave
/ Slo
w /
Res
et
D. A
djus
t / R
ever
se /
Res
.
Sta
rt
N
C2C1
SOLCON
Auxiliary Relays
Auxiliary Relays : C/O, 8A/250VAC
* Immediate - with On and Off delays* Fault - prog. Fault / Fale- safe* End of Acceleration - with On delay
SOLCON
“Immediate Relay”
L
1 2 3 4 5 6 7 8 9 10 11 12
Immediate / Shear pinRelay
Selection by designating the Immediate Relay as: * Immediate - with On and Off delays* Shear pin - When relay is designated as Shear-pin
SOLCON
“Immediate Relay” - Immediate
L
1 2 3 4 5 6 7 8 9 10 11 12
ImmediateRelay
Applications* Operating a valve * Opening / closing a brake
Off Delayafter Stop
On delayafter Start
SOLCON
“Immediate Relay” - Immediate
Creating special StartingCurves:1. Designate “Imm Relay” as Immediate and set On Delay time 2. Designate Terminal 8 as “Dual Adjust” and set parameters
1 2 3 4 5 6 7 8 9 10 11 12
D. A
dju
st
Immediate Relay
On delay
VoltageRamp-up
SOLCON
By-pass Contactor
1 2 3 4...9 13 14 15 16 17 18 19 20 21
L N
M
End of Acceleration Relay
SOLCON
Fault Relay
Fault Relay programmable :* Fault - 13-15 at NO, upon fault 13-15 are NC, returns upon fault reset* Fault Fail Safe - Upon Control Supply connection 13-15 at NC, upon fault 13-15 are at NO, returns upon fault reset.
1 2 3 4...9 13 14 15 16 17 18 19 20 21
Fault Relay
SOLCON
Control wiring - External Fault
External Fault input - connected between 19 and 21 (Neutral), use short wires, can be used only when 21 is connected to Ground or Neutral
1 2 3 4...9 13 14 15 16 17 18 19 20 21
Ext
erna
l Fau
lt
SOLCON
Control wiring - optional cards
25
26
27
Motor Insulation Alarm
23
24
22
Communication Board
(+) RS485
(-) RS485
N.C.
25
26
27
Digital Tacho Board
Encoder(-)
(+)
Ground
(+) Analogue
(-) Analogue
Thermistor
Thermistor
28
29
30
31
32
Analogue I/O Board
Ground
SOLCON
Wiring
L1 L2 L3
Fuses or Circuit breaker
Line Contactor(when required)
Soft Starter
M
SOLCON
Line & By-pass contactors
L1 L2 L3
By-pass Contactor
“Preparation for By-pass”eliminates the need for additional O / L
M
SOLCON
Power Factor Capacitor
Capacitor (when used)must be at Line side
L1 L2 L3
Soft starter
Motor
Fuses or circuit breaker
M
SOLCON
PAGE 0 PAGE 1 PAGE 2 PAGE 3 PAGE 9
?
Mode
Store
Reset
Select
% OF MOTOR FLA
MOTOR INSULATION52,8 Mohm
FLC FLA105 105
UCT UCD OCT0 10 850
OLT OLD115 4
UVT UVD OVT OVD 300 5 480 2
STC PT IV CL AT 0 0 30 400 10
MST NOS SP SI CD 30 10 30 15 5
SPC DT FT 0 10 0
DA: IV CL AT DT 30 400 10 10
DA: FLA 105
ES SST MSST 10 8 30
SEQ INSULAT RST NO 0,1 0,1 NO
I7 I8 FREL IMREL 0 0 0 0 0
DRV BAUD PAR SER0 96 0 248
MAIN PARAMETERS
STARTER FLC105 AMP.
MOTOR FLA105 AMP.
STORE ENABLEMAIN PARAMETERS
START PARAMETERS
SOFT START CURVE0 (STANDARD)
START TACHO GAIN0 (MIN. GAIN)
PULSE TIME0 SEC.
INITIAL VOLTAGE30 %
CURRENT LIMIT400 % OF FLA
ACC. TIME10 SEC.
MAX. START TIME30 SEC.
NUMBER OF STARTS10
STARTS PERIOD30 MIN.
START INHIBIT15 MIN.
RUN CONTACT DEL.5 SEC.
STORE ENABLESTART PARAMETERS
STOP PARAMETERS
SOFT STOP CURVE0 (STANDARD)
STOP TACHO GAIN0 (MIN. GAIN)
DEC. TIME10 SEC.
FINAL TORQUE30 %
STORE ENABLESTOP PARAMETERS
UNDERCURR.DELAY10 SEC.
O/C - SHEAR PIN850 % OF FLA
OVERLOAD TRIP115 % OF FLA
OVERLOAD DELAY4 SEC - AT 5 FLA
UNDERVOLT. TRIP300 VOLT
UNDERVOLT. DELAY5 SEC.
OVERVOLT. TRIP480 VOLT
OVERVOLT. DELAY2 SEC.
UNDERCURR. TRIP0 % OF FLA
STATISTICAL DATA
LAST STRT PERIODNO DATA
LAST START MAX. INO DATA
TOTAL RUN TIME0 HOURS
TOTAL # OF START0
LAST TRIPNO DATA
TRIP CURRENT0 % OF FLA
TOTAL # OF TRIPS0
Minimized Mode
SOLCON
PAGE 4 PAGE 5 PAGE 6 PAGE 7 PAGE 8
EN. SAVE & SL.SPD.PARAMETERS
SAVING ADJUST.0 MIN.
SLOW SPEED TORQ.8
MAX. SLOW SP. TIME30 SEC.
STORE ENABLEEN. SAVE & SL. SPD.
COMM. PARAMETERS
DRIVE NUMBER0
BAUD RATE9600
PARITY CHECKEVEN
SERIAL LINK NO248) OFF(
STORE ENABLECOMM. PARAMETERS
?
Mode
Store
Reset
Select
DUAL ADJUSTMENTPARAMETERS
DA: INIT. VOLT.30%
DA: CUR. LIMIT400 % OF FLA
DA: ACC. TIME10 SEC.
DA: DEC. TIME10 SEC.
DA: MOTOR FLA105 AMP.
STORE ENABLED.ADJ. PARAMETERS
Maximized Mode
FAULT PARAMETERS
PHASE SEQ. Y/NNO
INSULATION ALARMOFF
THERMISTOR TRIPOFF
STORE ENABLEFAULT PARAMETERS
INSULATION TRIPOFF
AUTO RESETNO
THERMISTOR TYPEPTC
I/O PROGRAMMINGPARAMETERS
PROG. INPUT #7ENERGY SAVER
PROG. INPUT #8DUAL ADJUSTMENT
FAULT RELAY TYPEFAULT
ANALOG OUTPUTNORMAL
STORE ENABLEI/O PROG.PARAM.
IMM/S.PIN RELAYIMMEDIATE
RELAY ON DELAY0 SEC.
RELAY OFF DEL.0 SEC.
SOLCON
Main Parameters
Starter FLC 8 - 2700A (8, 17, 31, 44 .... ) Motor FLA 50 - 100% Starter FLC setting Under Current Trip Off, 20 - 90% Motor FLA setting Under Current Delay 1 - 40 sec O/C Shearpin 200 - 850% Motor FLA setting O/C Shearpin Delay 0.5 - 5 sec Overload Trip 75 - 150% Motor FLA setting Overload Delay 1 - 10 sec (@ 500% FLA) Under Voltage Trip 120 - 600V Under Voltage Delay 1 - 10 sec Overvoltage Trip 150 - 750V Overvoltage Delay 1 - 10 sec
SOLCON
Start Parameters
Soft start curve 4 selectable curve (Pump Control) Start Tacho Gain 6 levels of Tacho Gain Pulse Time 0 - 1 sec. (2sec) Initial Voltage 10 - 50% Un (80%) Current Limit 100 - 400% Motor FLA setting
(500%) Acceleration Time 1 - 30 sec. (90sec) Max. Start Time 1 - 30 sec. (240sec) Number of Starts 1 - 10 & Off Starts Period 1 - 60 min. Start Inhibit Period 1 - 60 min. Run Contact Delay 0 - 120 sec.
SOLCON
Fault Parameters
Phase Seq.. protection Yes / No Insulation Alarm Off, 0.2 - 5 Mohm Insulation Trip Off, 0.2 - 5 Mohm Auto Reset Yes / No (phase loss , Undervoltage) Auto Reset Yes / No (Under Current) Thermistor type PTC / NTC (optional) Thermistor Trip Off, 0.1 - 10 Kohm
SOLCON
I / O Programming
Prog. Terminal # 7 Energy Save, Slow Speed, Reset Prog. Terminal # 8 Dual Adjustment, S.Spd.Reverse,
Reset Fault Relay Fault, Fault - fail safe Imm Relay function Immediate / Shearpin Imm Relay On Delay Imm 0 - 60 sec. / Shearpin 0 - 5 sec. Imm Relay Off Delay Imm 0 - 5 sec. / Shearpin 0 - 5 sec. Analogue Output Normal, Inverted
SOLCON
Communication Parameters
Drive number 0 - 999 Baud rate 1200 - 9600 Parity check Even / Odd Serial link No. 1 - 247 & Off
RS 485 with MODBUS RTU protocol can control and supervise up to 32 starters through a twisted pair.
A Windows based software for Setting, Control & Supervision is available as an option.
SOLCON
Statistical Data
Last start Period Last start max. current Total run time Total number of starts last trip Trip current Total number of trips
SOLCON
Motor maintenance is not so simple
SOLCON
Ordering Information Starter Current Rating: 8 - 2700A Mains voltage: 220-240V, 380-440V, 460-500V, 660-690V, 1000V Control voltage (terminals 1-3): 110-220V, 220-240V (DC by special order) Control inputs (terminals 4-9): 24-48Vac, 110-240Vdc Options: * Communication Board ( option # 3 )
* Motor Insulation Board # 4
* Analogue Board (cannot be used with # 4) # 5
* Special treatment for harsh environments # 8
* Preparation for by-pass (standard for size B) # 9
* Special width 536 mm (size C only) # A
* Line & Load Bus-bars at bottom (size C, D only) # B
* Door operated MMI, pre-ordered (size A-F) # D
* Door operated Kit with additional MMI (size A-F) # DK
* Back lit LCD # L
* Lloyd’s ENV-1 & 2 Approval (8-1400A) # M
* Tachometer Input for special applications # T
* UL and cUL approval # U
SOLCON
Ordering Information
Specify : RVS-DN 210 - 400 - 230 - 230 - 3+4+9 - S
50/60 Hz
50/60 Hz
A
CONTROL INPUT
STARTER FLC
MAINS VOLTAGE
CONTROL VOLTAGE
SERIAL NUMBER
72400 V
1751 - 97
230 V230 V
50/60 Hz
Starter FLC
Mains voltage
Control voltage
Control supply
Options
Front Panel
SOLCON
RVS-N Analog Soft Starters
For Light Duty Industrial / Commercial Applications
SOLCON
RVS-N Advantages
Heavy Duty Design: 400% In, 30 sec. at 50°C
Range: 8-170A, 220-600V Second Generation Analog Field proven experience Incorporating : Soft Start, Current Limit, Soft Stop, Motor Protection Simple Installation and operation
UL cUL
in process
SOLCON
Selector Guide
Starter Frame Motor HP
Type Size 230V 460V 575V
RVS-N 8 A 2.5 5 7.5
RVS-N 17 5 10 15
RVS-N 31 10 20 30
RVS-N 44 15 30 40
RVS-N 58 20 40 50
RVS-N 72 25 50 60
RVS-N 105 B 40 75 100
RVS-N 145 50 100 125
RVS-N 170 60 125 150
Starter should be selected according to motor’s Full Load Amp and starting conditions
SOLCON
Size A (8 - 72A)
IP 20 Control terminals (Plug-in)
LEDs for status display
Finger protected for safe operation
Line
Load
SOLCON
Wiring with Line & Bypass contactors
“Preparation for Bypass”eliminates the need for additional O / L
* Size B - Standard* Size A - Optional
SOLCON
Control wiring - standard unit
a. Control voltage to the electronic circuitry is derived from three phase supplyb. Connect control voltage to operate the fan (RVS-N 44 and above) c. Connect Neutral to terminal 6 to enable Phase Loss Protection (when Neutral is not available or not connected to Terminal 6 starter may not detect Phase Loss of lightly loaded motors.d. Realys rating 8A, 250VAC, 2500VA
1 2 4 5 6 8 9 10 11 S
top
Neu
tral
Fau
lt
Sta
rt
End
of
Acc
.Fan
SOLCON
Easy Adjustments
Motor FLC 50-100% Starter FLA setting * Initial Voltage 10-50% Un Current Limit 100-400% Motor FLA setting Ramp-up Time 2-30 sec. Ramp-up Time 2-30 sec. Overload Trip 115% Motor FLA setting, factory set.
* e.g. for motor 100A and Starter 105A, set 100 x 100 = 95% 105
SOLCON
Motor Protection
Electronic overload Phase Loss Heatsink Over Temperature
SOLCON
Ordering Information
Starter Current Rating 8 - 170A Mains voltage: 220-240V, 380-440V, 460-500V, 575-600V Fan voltage (RVS-N 44 and above): 110-220V, 220-240V Frequency 50 (5) or 60 (6) Hz Options: * Preparation for by-pass
(size A only, standard on size B) # 9
* UL and cUL approval # U
SOLCON
Ordering Information
Specify : RVS-N 170 - 400 / 6 - 230 - 9 - S
50 / 60 Hz
ASTARTER FLC
MAINS VOLTAGE
CONTROL VOLTAGE
SERIAL NUMBER
72400 V
1111 - 98230 V 60 Hz
Starter FLC
Mains voltage
Frequency
Fan voltage
Options
Front Panel
SOLCON
Solstart Micro Soft StarterFor Commercial Applications
SOLSTART
SOLCON
“Solstart” Advantages
Max. Current: 8, 17A Initial Volltage: 0 - 85% Ramp-up Time: 1 - 5 Sec. Ramp-down Time: 1 - 5 Sec. Starts per houre 60 Protection IP 20 Mounting DIN Rail
SOLCON
a. Voltage is control no two phases onlyb. Internal by-pass relays
Two-phase Control
Start *L2L1 L2
WU V
L3L1
SOLCON
Easy Adjustments
- 8A, 220-690V
- Soft Start
- Soft Stop
- Compact
- Easy to use
SOLCON
RVS-DN Applications
All types of standard 3 phase motors Pumps Fans and blowers Compressors Transport systems Conveyors Mills and extruders Weak mains and generator networks
SOLCON
Off Shore Applications
Pumps Fans and blowers Screw & Piston Compressors Powerpacks Multi-purpose Hydraulic Crane Powerpack Thrusters Main propulsion Weak generator systems Ballast Pumps
SOLCON
RVS-N Applications
Pumps Fans and blowers Compressors Transport systems Conveyors Weak mains and generator networks
SOLCON
Marine Installations
M/V Seaway Condor M/V Seaway Eagle M/S Arizona M/S Tromsbas M/S Siglar M/S Forde Jumior M/V Sprut M/S Leinebris
CGG Fohn M/S Ordinat M/S Havbas M/V Northern Eagle M/S Syclus M/S Forde M/S Botnica Twelve Torpedo Radars ZIM Hadera - Pending 3 Italian Crude Oil carriers 3pc each
SOLCON
Marketing & Sales - End Users
Identifying potential customers - End Users Water Industry - Water & Waste water Utilities, Municipalities Industrial Customeras
• Cement - Conveyors, Pumps, Crushers, Compressors,
• Agrigates, Stone & Lime - Conveyors, Crushers
• Chemical & Petrochemical - Pumps, Fire fighting pumps, Compressors, fans
• Animal food - Crushers, Palletizers
About this presentation
This presentation intends to show you the quality, sophistication, functionality and reliability of our digital soft starters.
Thank you for joining our seminar.
© Major parts of this Presentation were prepared by Henrik. L. Lillholt of Denmark 1997 .