Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 693)

Section 14A
System Start-Up
14A-5
16. Check the 3
Æ V ac incoming power to the servo amplifiers. For an
analog system refer to documentation provided by the drives
manufacturer. For a digital drive system, verify that the voltages
listed below are present at the following terminals of the servo
amplifier using a volt meter:
8520 Drives
TB1-1 to TB1-2 170 to 253 V ac
TB1-1 to TB1-3 170 to 253 V ac
TB1-2 to TB1-3 170 to 253 V ac
The green SYSTEM READY indicator light should be illuminated.
The yellow BUS UNDER VOLTAGE indicator light should be off.
1394 and 9/440 CNC/Drives
Power terminal block
U to PE
324 -- 528 V ac
V to PE 324 -- 528 V ac
W to PE 324 -- 528 V ac
The green axis module LEDs should now be solid green
(not flashing).
17. Select manual jog mode and jog the selected axis at low speed.
Check that the motor rotates with a low jog speed in the selected jog
direction.
If the motor speed is correct but the motor rotation direction is
incorrect, change the AMP parameter SIGN OF POSITION
FEEDBACK for the selected axis to the opposite polarity setting.
Change the parameter SIGN OF VELOCITY FEEDBACK if it no
longer matches SIGN OF POSITION FEEDBACK. Download the
new version of AMP to the control.
If the motor rotation direction is correct but the motor speed is
uncontrollable, check that the feedback wiring at the servo module
matches the phasing leads. Check the wiring from the power
amplifier to motor and from motor feedback to servo module.