Installing Interface Connections; Tb1 Connections - Powerware 9390 Installation & Operation Manual

3.2.4 Installing Interface Connections

3.2.4.1 TB1 Connections

To install wiring to connections:
Powerware 9390 UPS (40–80 kVA) Installation and Operation Manual S 164201535 Rev A
®
NOTE When installing interface wiring for building alarm and relay output to the
UPS interface terminals, conduit must be installed between each device and the UPS
cabinet.
1. Be sure the UPS system is turned off and all power sources are removed. (See
Chapter 9, "UPS Operating Instructions," for shutdown instructions.)
2. If not already open, unfasten front door latch and swing door open.
3. Remove screws securing internal panel covering TB1 and TB2 terminal blocks at
the top of the UPS cabinet (see Drawing 164201535-8, starting on page A-19).
4. If installing interface wiring from the bottom of the cabinet, proceed to Step 5;
otherwise, proceed to Step 7.
5. Remove screws securing top internal safety shield panel and open panel to gain
access to bottom entry wireway.
6. Remove screws securing bottom internal safety shield panel and remove panel to
gain access to bottom entry conduit landing plate.
7. Remove UPS cabinet top or bottom wire entry conduit landing plate to drill or
punch conduit holes (see Drawing 164201535-6 on page A-14).
8. Reinstall conduit landing plate and install conduit.
9. To locate appropriate terminals, and for wiring and termination requirements, see
Drawing 164201535-8, starting on page A-19.
10. Route and connect wiring.
11. When all wiring is complete, reinstall safety shield panels removed in previous
steps.
12. Close door and secure with latch.
Installing the UPS System
3-7