Rockwell Automation 999 IMC S Class Compact Motion Controller (Cat. No. 4100-999-122) - Manual (Page 172)

7-2 Troubleshooting
Publication 999-122 - January 1997
Replacing Modules Use these procedures to:
•
Determine what you need to replace modules
•
Remove the main CPU module
•
Install a replacement CPU module
•
Remove a power supply module
•
Install a replacement system module
Before You Begin
Before you replace modules, be sure to have the following:
•
A phillips screw driver
Removing a CPU Module
To remove a CPU module:
1. Remove 24V control power and AC input power from the system.
2. Loosen the top and bottom screws on the front cover.
3. Remove all cables from the front panel.
4. Open the front cover.
5. Remove two phillips screws that retain the faceplate on the CPU
module.
6. Using the card ejectors, remove the CPU module.
!
ATTENTION: The Compact contains ESD
(Electrostatic Discharge) sensitive parts and
assemblies. You are required to follow static control
precautions when you install, test, service, or repair this
assembly. If you do not follow ESD control procedures,
components can be damaged. If you are not familiar
with static control procedures, refer to Allen-Bradley
publication 8000-4.5.2, Guarding Against
Electrostatic Damage or any other applicable ESD
Protection Handbook.
!
ATTENTION: This system may have multiple
sources of power. More than one disconnect switch
may be required to de-energize the system. To avoid
shock hazard or personal injury, assure that all power
has been removed before proceeding.