Installing A Replacement System Module - AB Quality Allen-Bradley 1394 User Manual

9-20 Troubleshooting
Publication 1394-5.0 — May 2000
Note: 1394 input power and shunt connections are located on the
lower front of a Series A and B system module. The same
connections are located on the bottom of a Series C system
module. For complete system interconnect information refer
to Appendix B.
ATTENTION: To avoid shock hazard or personal
injury, assure that all power has been removed before
!
proceeding. This system may have multiple sources of
power. More than one disconnect switch may be
required to de-energize the system.
4. Allow five minutes for the DC bus to completely discharge before
proceeding.
5. Label and remove the 24V control power wiring from the system
module.
6. Label and remove the 360/480V AC input power wiring from the
system module.
7. Label and remove the ground wire and the external shunt
connections (if applicable).
8. Label and remove the feedback and communication connectors
from the bottom of system module.
9. Disconnect the slide-and-lock mechanism on the system module.
10. Open the system module door.
11. Label and remove any feedback and/or communication
connectors from the control board.
12. Remove the input wiring board.
13. Loosen the top and bottom fasteners that hold the module in
place.
14. Lift the module up and pull it out.

Installing a Replacement System Module

To install a replacement system module:
1. Install the top mounting fasteners on the system panel for the
system module. The heads of the fasteners should be at least 6.35
mm (0.25 in.) from the panel. Refer to Mounting Your 1394
System in the Installing Your 1394 chapter for more information.
2. Hang the 1394 System Module on the two mounting fasteners on
the left side of the panel.
3. Install the lower fasteners for the system module.