Rockwell Automation SA500 AC Power Modules - Manual (Page 45)

Installation Guidelines 4-17
Step 14. Set the application’s Speed Reference equal to 1023 (reference point 2,
STATOR_IZ1E2%). Do not change the value in reference point 1,
STATOR_IZ0E2%.
Step 15. Start the drive. The motor should come up to speed and go into stable run.
Record the motor voltage. This is the base motor voltage.
Step 16. Set the Speed Reference equal to 1125 (reference point 3,
STATOR_IZ2E2%).
Step 17. Adjust the Iz current through tunable STATOR_IZ2E2% (reference point 3)
until the motor voltage is equal to the base voltage measured in step 14.
Step 18. Repeat steps 15 and 16 to calibrate the remaining STATOR_IZ tunables that
your application requires. Do not calibrate the last STATOR_IZ tunable at this
time, but continue with step 18.
Step 19. Stop the drive.
Step 20. Set Gear-in-Speed equal to the motor’s rated voltage times the desired
speed range (1.1 to 4.0).
Step 21. Set the Speed Reference equal to 4095 (final reference point x,
STATOR_IZxE2%).
Step 22. Start the drive. Adjust the Iz current through tunable STATOR_IZxE2% until
the motor voltage is equal to the base voltage measured in step 14.
Step 23. Set NO_INTR@ (register 101, bit 0) to 0.
Step 24. Verify that all STATOR_IZ tunable values have been updated in block task
XXASPD.BLK.
4.8 Power Module Replacement
Use the following procedure to replace a Power Module:
Step 1. Turn off and lock out AC input power to the bus supply. Wait five minutes to
allow the DC bus voltage to dissipate.
Step 2. Measure the DC bus potential across the POS and NEG terminals of the DC
bus supply and each Power Module before working on the unit.
When the DC bus potential is down to less than 5V, touch a 50
Ω,
50 W or
larger resistor across the POS and NEG terminals for 20 seconds to allow
any remaining DC bus voltage to dissipate.
Remove the resistor and re-measure the DC bus potential to ensure the DC
bus capacitors are completely discharged before touching any internal
components.
!
ATTENTION: DC bus capacitors retain hazardous voltages after input
power has been disconnected. After disconnecting input power from the
DC bus supply, wait five (5) minutes and then measure the voltage at the
POS and NEG terminals of the DC bus supply and each Power Module
to ensure the DC bus capacitors are discharged before touching any
internal components. Failure to observe this precaution could result in
severe bodily injury or loss of life.