GE Industrial Solutions Entellisys Device Replacement Guide - Manual (Page 39)

Removing the UPS 39
7
4. Remove the 30A input fuse for the UPS to be replaced. The input fuse holders, marked UPS A
and UPS B, are located on the right-hand side of the instrument compartment.
5. Remove the 10A and 20A fuse, marked CPU and CONTROL BUS respectively, from the fuse
holders located on the left-hand side of the instrument compartment only for the UPS being
replaced.
6. Remove the washers and bolts that fasten the UPS mounting tabs to the mounting brackets
in the compartment.
Figure 7-3 UPS mounting tabs and bolts
7. Slide the UPS approximately halfway out of the instrument compartment. Ensure the weight
of the UPS is adequately supported.
8. Follow the input power cable from the rear of the UPS to the receptacle on the rear wall of
the compartment.
NOTE: The input power cable is permanently connected to the UPS housing.
9. Unplug the input power cable from the wall receptacle.
10. Locate the output power cable and plug at the rear of the UPS. The output power cable
plugs into a socket in the UPS housing.
11. Unplug the output power cable from the UPS.
12. Disconnect the communication cable from the rear of the UPS housing by unscrewing the
two screw locks at the plug.