Electrical Installation
3 2 1
+DC | X2 X1 | N |
Backplane Board
Terminating
Studs
X2N
+DC | X1 |
Figure 23. UPS Input and Output Terminals
9.Refer to the wiring diagrams beginning on page 38 which show output configurations for various voltages and isolation options. Make UPS output connections on the backplane board terminating studs. Compression lugs (supplied in the accessory kit) may be installed on the proper terminating studs. Wires may also be terminated with ring terminals, which are attached to the output terminating studs.
10.If the bypass switch is an MBB style, notice the cable routed out of the left side of the bypass switch cabinet. The red and black pair of wires (normally open) in this cable must be connected to terminals 3 and 4 in Steps 11 and 12. (Do not connect the white and black pair of wires in this cable.)
11.If any external, hardwired control signals are required, remove the rear panel on the upper section of the cabinet and locate the terminal block, as shown in Figure 24.
C A U T I O N
EPO and external bypass circuits are not isolated from line voltage, and wiring must be installed according to local codes using conduit or suitable primary supply cables.
Powerware® 9170 User's Guide | 33 |