Installation Manual

Troubleshooting 8-73

11. Did the FmNT message “30735 The motor have gone open loop? Press OK to continue and

reinitialize the motion controller” appear?

Stop here. A mechanical issue is the root cause of

the fatal following error.

Go to 8.2.1, PMAC Initialization Fault Isolation Procedure. If fault reoccurs,

Contact Asymtek Technical Support.

Servo Motor Verification

1. Exit FmNT, shut down Windows NT, press the black

OFF (0) button on the Operator’s Console, and

switch the Main Circuit Breaker to the

OFF (0) position.

2. Disconnect the Servo Motor Power Cable from the Servo Amplifier PWA (P/N 62-1650-01) at the J1

connector labeled MOTOR.

3. Check the continuity at all three lines in the connector.

4. Is there continuity between all three lines?

Servo Motor (P/N 62-1650-01 for the X and Y

Motors, and P/N 62-1664-00 for the Z-axis Motor)

has failed. See

Parts Replacement section.

Go to Step 5

5. Measure the resistance between each identical line.

6. Is the reading 1.2 to 7 ohm?

Servo Motor (P/N 62-1650-01 for the X and Y

Motors, and P/N 62-1664-00 for the Z-axis Motor)

has failed. See

Parts Replacement section.

Go to 8.2.1, PMAC Initialization Fault Isolation Procedure. If fault reoccurs,

contact Asymtek Technical Support.

Yes