Powerware 9170 User Manual page 38

Electrical Installation
34
The Generator On signal is isolated from line voltage and can
be treated as NEC Class 2 wiring.
Use 14–20 AWG, 600V wire (UL) or 14–26 AWG, 300V wire
(CSA) for all input control signals.
12. Place the signal wires through the proper conduit or grommet
above the terminal block and attach to appropriate terminals.
Secure each connection by torquing terminal screws to a
maximum 3.5 in lb (0.4 Nm). Provide strain relief for cables by
installing plastic cable ties.
NOTE Do not strain relieve EPO or external bypass wiring with the same cable tie
used for Generator On wires.
13. Remove the jumper between terminals 5 and 6 only if you are
wiring from an emergency power-off (EPO) switch. (See
"Changing Parameter Settings" on page 65 for information
about accessing menu 7, submenu 1, item 9 to view or change
the EPO switch type.)
14. When all connections have been made and checked, replace the
bypass switch front panel and UPS cabinet rear panels.
Generator On
(Normally Open)
Signal
Common
Emergency Power-Off (Normally Closed)
External Bypass *(Short to Common When Active)
Generator Set
Figure 24. Input Control Signal Wiring
Powerware 9170 User's Guide
®
Plastic Cable Tie
:
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