ABB ACS880-M04, Руководство по оборудованию

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148 The Safe torque off function
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STO acceptance test procedure
After wiring the Safe torque off function, validate its operation as follows.
• Note : If an FSO-xx safety functions module is installed, refer to its documentation.
Action
WARNING! Follow the Safety instructions on page 13 .
Ignoring the instructions can cause physical injury or death, or damage to the
equipment.
Make sure that the drive can be run and stopped freely during start-up.
Stop the drive (if running), switch the input power off and isolate the drive from the power
line by a disconnector.
Check the Safe torque off circuit connections against the wiring diagram.
Close the disconnector and switch the power on.
Testing the operation of STO function when motor is stopped.
Give a stop command for the drive (if running) and wait until the motor shaft is at a
standstill.
Make sure that the drive operates as follows:
1. Open the STO circuit.
Expected outcome: The drive generates an indication if parameter 31.22 STO
indication run/stop (see the firmware manual) is defined for ‘stopped’ state.
2. Give a start command to verify that the STO function blocks the operation of the drive.
Expected outcome: The motor should not start.
3. Close the STO circuit.
4. Reset any active faults.
5. Restart the drive and check that the motor runs normally.
Testing the operation of STO function when motor is running.
Start the drive and make sure the motor is running.
Make sure that the drive operates as follows:
1. Open the STO circuit.
Expected outcome: The motor should stop. The drive generates an indication if
parameter
31.22 STO indication run/stop (see the firmware manual) is defined for
‘running’ state.
2. Reset any active faults and try to start the drive.
3. Make sure that the motor stays at a standstill and the drive operates as described
above in testing the operation when the motor is stopped.
4. Close the STO circuit.
5. Reset any active faults.
6. Restart the drive and check that the motor runs normally.
Document and sign the acceptance test report which verifies that the safety function is
safe and accepted for operation.
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