Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 799)

Section 15B
Replacement Procedures
15B-43
5. Remove the screws that secure the logic board(s) to the servo
amplifier chassis.
6. Carefully push the wires and connectors to the side and remove the
logic board(s).
7. Install the logic board(s) onto the new servo amplifier power section
by reversing the removal procedure. First position the board(s) on
the chassis and verify that all wires and connectors are accessible.
8. Install and tighten the screws that secure the logic board(s) to the
chassis.
9. Reconnect all wires and connectors to the logic board(s) as labeled,
including the chassis ground wire.
10. Return the servo amplifier to the cabinet and reconnect it.
11. Turn ON power to the control and servo amplifier.
This is not available on the 9/230 control. To replace the optional feedback
module:
1. Turn OFF all power to the control.
ATTENTION: To guard against electrical shock hazards, never
make connections or disconnections at the ac distribution
network unless the main ac disconnect switch is open and
locked.
2. Remove the servo module next to the optional feedback module.
3. Disconnect all cables connected to the optional feedback module.
4. Disconnect the optional feedback module from the servo module.
5. Replace the optional feedback module with a new one.
6. Set jumper JP1 on the new optional feedback module to correspond
to the setting of jumper JP1 on the old optional feedback module.
7. Adjust the variable resistors (pots) on the new optional feedback
module so they to correspond to the settings of the variable resistors
(pots) on the old optional feedback module.
8. Reconnect all cables that were disconnected.
15B.27
Replacing the Optional
Feedback Module