ABB ACS580MV, Commissioning Manual

Page: 84 / 150

84 Standard Commissioning Process
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Record operation trend and add it to report with comments.

Grid loss ride through test
Test Grid loss ride-through. Test with the driven machine coupled and with load, if
possible.
•
Connect the Drive composer, add following signals to monitoring window: motor
current, Trafo current, motor actual speed, DC link voltage, etc.
•
Set Par 82.81 Ride through test time to achieve approx. 5s. The ride-through time
equals this parameter plus the time needed for the MCB to close.
•
Set the speed reference in Drive composer to rated motor speed.
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Start the drive. Change Par 82.80 Ride through test to Enabled while rated motor
speed is reached. The MCB opens and closes after specified time. The drive should
not trip due to overcurrent (motor or transformer). The DC voltage should be below
limit at all time. After MCB is closed motor speed should return to rated value without
overshoot.
Finalizing the commissioning

Parameters backup
•
Export parameters to a.prn file using DriveStartup option Parameters/Export.
•
Use Drive composer tool to save parameter backup file. Recommend to save 2 types
of backup file, the customer access level and the service access level.
NOTICE! Grid loss ride through test is not the standard commissioning task, which is
only for the particular project permitted by MV Drives Supportline.The MCB will open
and close automatically during the test. Don’t set Par 82.81 lower than 2s because it
might cause the drive to trip.