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www.siemens.com/drives
Medium-Voltage Drive
SINAMICS PERFECT HARMONY GH180Type 6SR51
Reference Manual
Edition 05/2020
Tests carried out on drivesThis documentation pertains to
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are graded according to the degree of danger.
DANGERindicates that death or severe personal injury will result if proper precautions are not taken.
WARNINGindicates that death or severe personal injury may result if proper precautions are not taken.
CAUTIONindicates that minor personal injury can result if proper precautions are not taken.
NOTICEindicates that property damage can result if proper precautions are not taken.If more than one degree of danger is present, the warning notice representing the highest degree of danger will be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to property damage.
Qualified PersonnelThe product/system described in this documentation may be operated only by personnel qualified for the specific task in accordance with the relevant documentation, in particular its warning notices and safety instructions. Qualified personnel are those who, based on their training and experience, are capable of identifying risks and avoiding potential hazards when working with these products/systems.
Proper use of Siemens productsNote the following:
WARNINGSiemens products may only be used for the applications described in the catalog and in the relevant technical documentation. If products and components from other manufacturers are used, these must be recommended or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and maintenance are required to ensure that the products operate safely and without any problems. The permissible ambient conditions must be complied with. The information in the relevant documentation must be observed.
TrademarksAll names identified by ® are registered trademarks of Siemens AG. The remaining trademarks in this publication may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.
Disclaimer of LiabilityWe have reviewed the contents of this publication to ensure consistency with the hardware and software described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the information in this publication is reviewed regularly and any necessary corrections are included in subsequent editions.
2 General scope of services ............................................................................................................................9
2.1 Routine test ............................................................................................................................11
3.1 Visual inspection ....................................................................................................................163.1.1 Rating plate ............................................................................................................................163.1.2 Housing degree of protection .................................................................................................163.1.3 Electrical cabinet components ...............................................................................................173.1.4 Cable installation....................................................................................................................173.1.5 Cable markings ......................................................................................................................183.1.6 Setting values of circuit breakers, if used...............................................................................183.1.7 Dimensions ............................................................................................................................18
3.2 Function test...........................................................................................................................203.2.1 Auxiliary voltages ...................................................................................................................203.2.2 Door limit switches .................................................................................................................203.2.3 Door interlocking system........................................................................................................203.2.4 Anti-condensation heating......................................................................................................213.2.5 Socket outlets and lighting .....................................................................................................223.2.6 Remote access via digital and analog inputs and outputs .....................................................223.2.7 Phase offset of the output voltage in the three-phase system ...............................................233.2.8 Local control via the operator panel .......................................................................................233.2.9 Local control via pushbutton ..................................................................................................243.2.10 Phase offset between output voltage and current with output reactor ...................................243.2.11 Operating state indicator lights...............................................................................................253.2.12 Digital inputs and outputs for line synchronization .................................................................253.2.13 Checking the evaluation unit for external temperature sensors .............................................263.2.14 Remote access via network connection.................................................................................273.2.15 Mechanical door interlock ......................................................................................................273.2.16 Switched three-phase auxiliary power output ........................................................................283.2.17 Switched single-phase auxiliary power output .......................................................................283.2.18 Grounding switch ...................................................................................................................293.2.19 Failure of a power semiconductor module .............................................................................303.2.20 Temperature monitoring – infeed transformer........................................................................313.2.21 Fan failure with redundant fans..............................................................................................313.2.22 Fan failure ..............................................................................................................................323.2.23 Fan change operation ............................................................................................................323.2.24 Overtemperature, output reactor or sine-wave filter...............................................................333.2.25 Bypass ...................................................................................................................................333.2.26 Load test without motor..........................................................................................................34
3.2.27 Display devices in the cabinet door........................................................................................34
3.3 Cooling system test................................................................................................................363.3.1 Air flow direction.....................................................................................................................36
3.4 Interface test ..........................................................................................................................373.4.1 Interfaces ...............................................................................................................................37
3.5 Additional optional tests .........................................................................................................383.5.1 Temperature-rise test.............................................................................................................383.5.2 Temperature behavior of the infeed transformer....................................................................383.5.3 Power factor measurement ....................................................................................................393.5.4 Efficiency and loss measurement ..........................................................................................393.5.5 Harmonics ..............................................................................................................................393.5.6 Noise measurement without load...........................................................................................40
Introduction 1This document describes the preconditions when testing drives. The fulfillment of these preconditions is the basis for achieving the smoothest possible testing process and maximum possible customer satisfaction.
The following drive tests are described:
● Routine tests
● Tests that are offered as standard
Note
If the scope of testing and inspection cannot fulfill all customer requirements, please consult your Siemens sales advisor at head office.
General scope of services 2A variable-speed drive can include the following components:
● Induction motor, synchronous motor or PEM motor with or without speed encoder
● SINAMICS drives
● Drive transformer
● Cooling unit for water-cooled drives
● Small PLCs with drive functionality.
The factory offers adapted test systems adapted to address such systems.
Note
Contact your sales person if additional components must be taken into account for your particular project.
Scope of services offeredUnless otherwise stated in the quotation, the scope of tests ordered includes all activities, equipment, materials and expendables required.
Additional activities, services and provisions - for example, the use of third-party converters - must be coordinated well in advance.
The deadline and testing period stated, and the quoted cost, can be met only if all the test and inspection procedures are clarified in detail in advance. Due to the high capacity utilization of the associated equipment, it might not be possible to carry out individual inspections and tests that are requested late if the planned test is already in progress.
If you have received specific requirements from your customer, please send these as soon as possible – with the necessary key data – to the system test facility.
Test equipmentSiemens ensures the availability of the equipment required for the agreed tests and inspections, including test couplings for load runs.
Customer couplings, coupling dummies and coupling jigs for non-cylindrical shaft extensions are excluded.
Sequence of a customer acceptanceA customer acceptance test is generally executed in the sequence:
1. Installation and commissioning of the components before the customer arrives.
2. Kickoff with presentation of the test schedule and discussion of individual steps in the acceptance test workflow.
3. Execution of the tests according to the test schedule
4. Discussion of the test results
5. Preparation of test documentation for the customer. The test documentation is created before or after the customer leaves depending on the scope of testing and the time schedule.
Components provided by customerComponents provided by the customer must be available in plenty of time so that tests can be carried out on time. The factory has no access to components, which are not part of the scope of supply of PD LD. This also applies to components ordered from other Siemens' Groups. The technical data for these components is required at the latest eight weeks before the start of the acceptance test, e.g.:
● Dimensions
● Weights
● Energy Requirement
● Interfaces
Location of the customer acceptanceAll customer acceptance tests in the test fields for drives are performed as part of the manufacturing process.
NoteLimited number of persons in the test field
For safety reasons, the number of persons in the test field is limited. In addition to the regional sales partner, only two persons from the customer are permitted in the test field at the same time.
NoteTest without load motors or multipulse infeeds via transformers in the test field
Some tests are simulated or performed in test mode with limited rated data.
NoteTests with the customer's own cooling units or excitation equipment
If the customer's own cooling units or excitation equipment are to be tested, a system test can be ordered with option F97.
2.2 Visual inspectionThe visual inspection is performed to ensure that the equipment complies with the order specifications. The tests are carried out with the drive in a no-voltage condition.
The visual inspection together with the customer – or with the company accepting the equipment – is carried out with the drive installed and labeled. Each test step is documented in the acceptance report with the specific results of the step.
The visual inspection is part of the function test (F72, F73).
Visual inspection Order codesWithout the customer present
With the cus‐tomer present
● Rating plate● Housing degree of protection● Electrical cabinet components● Cable installation● Cable markings● Setting values of circuit breakers, if used● Dimensions
2.3 Function testsThe drive functions are tested according to IEC 61800-5-1. In addition, excerpts from additional standards apply, which are listed in the relevant chapters as well as internal Siemens directives within the scope of quality assurance.
The function tests are performed and documented in the Siemens test field by internal test field personnel. For the function test, the drive is in the test mode with restricted monitoring functions.
The successful test is confirmed in a 3.1 certificate – or in the case that the customer has ordered the acceptance test, in a 3.2 certificate.
2.4 Insulation testThe insulation resistance is measured before and after the high-voltage test. The insulation test can only be ordered and carried out together with the function test (F72, F73).
Insulation test Order codesWithout the customer present
With the cus‐tomer present
● High-voltage test● Measuring the insulation resistance
F76
F77
The successful test is confirmed in a 3.1 certificate – or in the case that the customer has ordered the acceptance test, in a 3.2 certificate.
The insulation test is performed on a separate acceptance day prior to the function test.
The visual inspection is performed to ensure that the drive complies with the requirements of the order. The individual test steps are performed with the drive in a no-voltage condition.
The test together with the customer – or his representative – is carried out with the drive installed and labeled. The results of all of the tests are documented in the acceptance report.
3.1.1 Rating plate
FundamentalsThe technical data and ordered options on the rating plate and the routine test certificate are checked to ensure that they match up.
Test procedure1. The data on the rating plate and the routine test certificate are visually compared.
ResultThe test is passed if the data match up.
3.1.2 Housing degree of protection
FundamentalsA check is made as to whether the housing degree of protection ordered complies with what is described in the catalog.
Test procedure1. The housing degree of protection is identified based on what is stamped on the rating plate.
2. Depending on the version, the following components are visually checked, e.g.:
– Canopies
– Cooling slots
– Fittings and rubber seals in the doors and between the cabinet units
ResultThe test is passed if the components required for the specified housing degree of protection are available.
3.1.3 Electrical cabinet components
FundamentalsA visual inspection is made to see whether the electrical cabinet components are installed as defined in the layout diagram and/or circuit diagram.
Test procedure1. The customer selects electrical cabinet components by random sampling.
2. The selected electrical cabinet components are visually checked to ensure that they are correctly installed and marked.
ResultThe test is passed if the selected electrical cabinet components are installed as specified in the layout diagram and/or circuit diagram.
3.1.4 Cable installation
FundamentalsVisual and mechanical checks are made to ensure that cables and conductors have been installed correctly and are connected correctly according to the circuit diagram.
Test procedure1. The customer selects cables or conductors by random sampling.
2. The following is inspected:
– Are the cables firmly connected?
– Have edge protectors been attached to sharp edges?
– Are the cables routed according to the circuit diagram?
ResultThe inspection is passed if the cable installation does not exhibit any deficiencies and matches the information in the circuit diagram.
FundamentalsTests are performed according to DIN EN 60146-1. The auxiliary voltages are visually checked using indicator lights or using a voltmeter.
Test procedure1. The drive power section is switched off.
2. The auxiliary voltages are switched on.
3. The auxiliary voltages are checked.
ResultThe test is passed if all of the auxiliary voltages are available.
3.2.2 Door limit switches
Fundamentals The doors of the drive power section are monitored using limit switches. This monitoring function ensures that when the doors are open, the medium voltage cannot be switched-in.
Test procedure1. The auxiliary voltage is present. All drive doors are closed. -K51 has energized.
2. One door of the drive power section is opened.-K41 drops out and prevents the medium voltage from being switched-inIt is not permissible that -K41 has energized.
ResultThe test is passed if the switching states listed above are complied with.
3.2.3 Door interlocking system
FundamentalsTests are performed in accordance with IEC 61800-5-1
To avoid accidents, the drive doors must be closed during operation. This is guaranteed by the electromagnetic door interlocking system. The doors of the power section remain interlocked until an appropriate safety wait time has elapsed.
Test procedure1. The auxiliary voltage is present.
2. All drive doors have been closed.
3. The medium voltage is available.The electromagnetic door interlocking system locks the power section doors.
4. The power section doors cannot be opened.
5. The power section power supply is switched off. The safety wait time elapses. The power cells discharge themselves.
6. If a grounding switch is installed, it is closed manually.
7. The selector switch on the drive is set to "OFF". The EMERGENCY STOP is pressed. The power section doors can be opened.
ResultThe test is passed if the door interlocking system functions as described.
3.2.4 Anti-condensation heating
FundamentalsA check is made as to whether the anti-condensation heating heats up after switching on. This prevents the formation of condensation in the drive when it is not operational.
Test procedure1. The temperature of the anti-condensation heating is measured using an infrared
thermometer.
2. The auxiliary voltage for the anti-condensation heating is switched on.The anti-condensation heating elements heat up.
3. The temperature is measured again.
ResultThe test is passed if the anti-condensation heating elements heat up after they have been switched on.
ResultThe test is passed if the corresponding digital inputs and outputs can be correctly switched.
3.2.13 Checking the evaluation unit for external temperature sensors
FundamentalsThe evaluation unit for external temperature sensors is checked.
Option DescriptionL81 2 x 2 thermistor protection relayL82 3 x 2 thermistor protection relayL91 2 x Pt100 evaluation units each with 3 inputsL93 Pt100 evaluation unit with 6 inputs and 2 analog outputsL95 Pt100 evaluation unit with 6 inputs for explosion-protected motors and 6 analog outputs
Test procedure1. The drive is switched on.
2. The signal cable for "Alarm" is interrupted.The drive remains switched on. The following message is displayed on the test station computer."Motor Protect Relay Warn" (= motor overtemperature)
3. The signal cable for "Fault" is interrupted.The drive is shut down. The following message is displayed on the test station computer."Motor Protect Relay Trip" (= motor overtemperature fault)
ResultThe test is passed if the appropriate messages are displayed on the test station computer.
FundamentalsTwo networks are optionally available to connect to the higher-level process control system (PLC, S7, ...). With the drive in the remote mode, a check is made as to whether the network interface can be controlled.
Network Option Network version1 G21
G22G28 G91
Mod Bus PlusMod Bus RTUMod Bus EthernetProfi Bus DP
2 G31G32G38G93
Mod Bus PlusMod Bus RTUMod Bus EthernetProfi Bus DP
Test procedure1. The network cable is inserted in the interface.
2. The drive is switched into the remote mode using the "Local-Remote switch".
3. The following operating states are set and monitored at the test station via network:
– Drive on
– Drive off
– Reset fault
ResultThe test is passed if the drive responds as described.
3.2.15 Mechanical door interlock
Fundamentals The door interlock system locks are tested. The primary key allows access to one or several secondary keys. The primary key can only be removed if all of the secondary keys are in the key exchange unit.
Test procedure1. All drive doors have been closed and interlocked.
No auxiliary power is output when the drive is operational. The auxiliary power is output when the drive is switched off.
Option Power at 230 V 1AC 50 Hz / 120 V 1AC 60 HzN35N36N37N38
1.2 / 0.7 kW2.2 / 1.2 kW3.5 / 1.8 kW 4.5 / 2.4 kW
Test procedure1. The drive is switched off
-K38 energizes.
2. The drive is switched on.-K38 deenergizes.
ResultThe test is passed if -K38 responds appropriately.
3.2.18 Grounding switch
Fundamentals Depending on the particular version, the drive is equipped with one or two grounding switches. The switching logic and switching states of the grounding switch are tested. The procedure is the same for one or two grounding switches.
Initial state with the drive switched on off off off on onDrive off off off off on onMedium voltage off off off off on onWait 600 s off off off on onLocal-remote switch off and actuate Emer‐gency Off
off off on off on
Connect grounding switches -Q1 / Q2 on on on off onOpen the doors on on on off off
3. The drive is switched off and grounded, the doors are open.
Initial state with the drive switched off on on on off offClose the doors on on on off onOpen grounding switches -Q1 / Q2 off off on off onLocal-remote switch to "Local" and re‐lease Emergency Off
off off off on on
Medium voltage on off off off on onDrive on off off off on on
ResultThe test is passed if the corresponding switching states occur.
3.2.19 Failure of a power semiconductor module
FundamentalsThe power section must shut down if a power semiconductor module fails. The failure is simulated by withdrawing the fiber-optic cable connector from the gating module of a power semiconductor module. This interrupts the control.
Test procedure1. The auxiliary voltage is present.
2. The fiber-optic cable connector of a gating module is withdrawn.A message is displayed on the test station computer.
ResultThe test is passed if the appropriate message is displayed on the test station computer and the inverter is inhibited.
3.2.20 Temperature monitoring – infeed transformer
Fundamentals The temperature monitoring of the infeed transformer is checked.
Test procedure1. The drive is switched on.
2. The signal cable for "Alarm" is interrupted.The drive remains switched on. The following message is displayed on the test station computer. "Xformer OT Alarm" (= alarm, transformer overtemperature)
3. The signal cable for "Fault" is interrupted.The drive remains switched on. The following message is displayed on the test station computer."Xformer OT Trip Alarm" (= fault announcement, transformer overtemperature)
4. The drive is switched off if the fault announcement is uninterrupted for 60 s.The following messages are displayed on the test station computer:"Xformer OT Trip" (= fault transformer overtemperature)"SOP issued MV input trip" (= drive switches off the supply)
ResultThe test is passed if the appropriate messages are displayed on the test station computer.
3.2.21 Fan failure with redundant fans
FundamentalsDepending on the version, the cabinet and/or each cabinet unit (transformer unit, cell unit) is equipped with one or two fans and a redundant fan.
A check is made that when one of the fan fails, the redundant fan is switched on. In order to maintain drive operation, at least one fan per cabinet unit must be active.
Test procedure1. The drive is switched on.
2. The fan power supply of a cabinet unit is interrupted. The redundant fan switches on. A fan failure message is displayed on the test station computer.
3. The power supplies of all fans of a cabinet unit are interrupted. The fault announcement of the cooling system ("Cooling Sys-Trip Alarm") is displayed on the test station computer.
4. If no fan is switched in again within a specified time, then the drive shuts down.The following messages are displayed:
ResultThe test is passed if the appropriate messages are displayed on the test station computer, and the drive switches off if a fan is no longer running.
3.2.22 Fan failure
FundamentalsDepending on the version, the cabinet and/or each cabinet unit (transformer unit, cell unit) is equipped with one or two fans.
In order to maintain drive operation, at least one fan per cabinet unit must be active.
Test procedure1. The drive is switched on.
2. The power supplies of all fans of a cabinet unit are interrupted. On the test station computer, a fan failure message and a fault announcement of the cooling system ("Cooling Sys-Trip Alarm") are displayed.
3. If no fan is switched in again within a specified time, then the drive shuts down. The following messages are displayed:
ResultThe test is passed if the appropriate messages are displayed on the test station computer, and the drive switches off if a fan is no longer running.
3.2.23 Fan change operation
FundamentalsThe fans are controlled alternating in order to guarantee that the operating time is evenly distributed across the individual fans. A check is made as to whether this alternating operation functions.
Test procedure1. The auxiliary voltage is present.
2. An operating time of 100 s is entered on the test station computer.
3. The drive is switched on.
ResultThe test is passed if the fans switch over after the specified time.
3.2.24 Overtemperature, output reactor or sine-wave filter
FundamentalsThe temperature monitoring of the output reactor and/or the sine-wave filter is checked.
Test procedure1. The drive is switched on.
2. The signal cable for "Alarm" is interrupted.The drive remains switched on. The following message is displayed on the test station computer. "Reactor OT Alarm" (= overtemperature alarm)
3. The signal cable for "Fault" is interrupted.The drive remains switched on. The following message is displayed on the test station computer."Reactor OT Trip Alarm" (= fault announcement, overtemperature)
4. The inverter is switched off if the fault announcement is uninterrupted for 60 s.The following message is displayed on the test station computer:"Reactor OT Trip" (= overtemperature fault)
ResultThe test is passed if the appropriate messages are displayed on the test station computer.
3.2.25 Bypass
FundamentalsThe appropriate bypass contactor must energize if a power semiconductor module fails. The failure is simulated by withdrawing the fiber-optic cable connector from the gating module of a power semiconductor module. This interrupts the control.
Test procedureThe test is carried out with reduced power across an inductive load.
1. The drive is switched on.
2. A fiber-optic cable connector of a gating module is withdrawn for each phase.The corresponding bypass contactor of the failed power semiconductor module energizes.An alarm message is displayed on the test station computer.
3. The fiber-optic cable connector of an additional gating module is withdrawn.The inverter is shut down.A fault message is displayed on the test station computer.
ResultThe test is passed if the appropriate messages are displayed on the test station computer.
3.2.26 Load test without motor
Fundamentals The internal measuring device of the drive is checked for an inductive load. The calibrated measuring equipment is used as reference.
When testing a version with 60 Hz input transformer on a 50 Hz line supply, the power is reduced.
Test procedure1. The drive is switched on in a test mode.
2. The inverter is enabled.
3. The rms values of voltage, current, apparent and active power are measured at the input and output of the drive.
ResultThe test is passed if the values displayed on the test station computer match the reference values with a tolerance of ±5 %.
3.2.27 Display devices in the cabinet door
Fundamentals Three display devices are mounted in the cabinet door of the control section. During the "Load test without motor", a check is made whether the displayed values correspond to the measured values of the calibrated measuring equipment.
FundamentalsThe customer or its representative parameterize and test the communication of selected interfaces with their own test equipment. Factory personnel are available to operate the test station. Only auxiliary power is provided. The interface test is limited to five hours.
Test procedure1. Using his own test equipment, the customer establishes the hardware connection to the
drive.
2. Factory personnel switch on the auxiliary voltage.
3. The customer establishes the software connection to the drive.
4. The customer parameterizes and tests the communication of selected interfaces.
ResultThe interface test has been completed after five hours.
FundamentalsUsing the temperature-rise test, the temperatures under load at defined measuring points are determined.
Test procedure1. The drive is operated for eight hours in the test mode the same as in the "Load test without
motor".
2. The temperature is measured after eight hours at the following measuring points:
– Air discharge 1 at the transformer unit: Fan -E31
– Air discharge 2 at the cell unit: Fan -E32
– Transformer core: At the upper side of the core close to terminals T1:H1, T1:H2, T1:H3
– Reactor core: At the upper side and center of the core (only for option L09)
– Ambient temperature
ResultThe measured values are documented together with the "Functional test plan".
See alsoLoad test without motor (Page 34)
3.5.2 Temperature behavior of the infeed transformer
Fundamentals In addition to the temperature-rise test, the temperature of each of the windings of the infeed transformer is measured before and after the temperature-rise test. This test can only be ordered in conjunction with a temperature rise test.
Test procedure1. The temperatures of the individual windings are determined before the temperature rise test.
2. The drive is operated for eight hours in the test mode the same as in the "Load test without motor".
3. The temperatures of the individual windings are determined after the temperature rise test.
ResultThe maximum temperature rise of the individual windings must not exceed the appropriate limit values. The measured values are documented together with the "Functional test plan".
3.5.3 Power factor measurement
Fundamentals The power factor is measured at different operating points.
Test procedure1. The drive is operated in the test mode the same as in the "Load test without motor".
2. The power factor is measured at the input and output at 50 %, 75 % and 100 % load.
ResultThe measured values are documented in the "Functional test plan".
3.5.4 Efficiency and loss measurement
Fundamentals Efficiency and losses are measured at various operating points.
Test procedure1. The drive is operated for 20 minutes each in the test mode, the same as in the "Load test
without motor".
2. Efficiency and losses are measured at two minute intervals at the input and output for 50 %, 75 % and 100 % load.
ResultThe measured values are documented in the "Functional test plan".
3.5.5 Harmonics
Fundamentals The effects of the drive on the supply grid/line supply are determined by recording the harmonics.
Anti-condensation heating, 21Auxiliary voltages, 20Bypass, 33Checking the evaluation unit for external temperature sensors, 26Digital inputs and outputs for line synchronization, 25Display devices in the cabinet door, 34Door interlocking system, 21Door limit switches, 20Failure of a power semiconductor module, 30Fan change operation, 32Fan failure, 32Fan failure with redundant fans, 31Grounding switch, 29Load test without motor, 34Local control via pushbutton, 24
Local control via the operator panel, 23Mechanical door interlock, 27Operating state indicator lights, 25Overtemperature, output reactor or sine-wave filter, 33Phase offset between output voltage and current with output reactor, 24Phase offset of the output voltage in the three-phase system, 23Remote access via digital and analog inputs and outputs, 22Remote access via network connection, 27Socket outlets and lighting, 22Switched single-phase auxiliary power output, 28Switched three-phase auxiliary power output, 28Temperature monitoring of the infeed transformer, 31