Instruction manual
INSTALLING THE UPS SYSTEM
Eaton
®
9390 UPS (20–80 kVA) and 9390IT (20-40 kVA) Installation and Operation Manual S 164201603 Rev 4 www.eaton.com/powerquality
4-13
4.8 Installing Interface Connections
4.8.1 TB1 and TB2 Connections
NOTE When installing interface wiring for TB1 and TB2 connections, conduit must be installed between
each device and the UPS cabinet.
To install wiring to connections:
1. Verify 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 the front door latch and swing the door open.
3. If not already removed, remove the door. Remove the retaining screw located
inside the door at the bottom hinge pivot point, then lift the door off. Retain the
hardware for later use.
4. Remove the screws securing the control panel door and swing the door open.
Retain the hardware for later use.
5. Remove the screws securing the top internal safety shield panel. Remove the
panel to gain access to the TB1 and TB2 terminal blocks and the top conduit
landing plate (see Drawing 164201603-10 starting on page A-46). Retain the
hardware for later use.
6. If installing interface wiring from the bottom of the cabinet, proceed to Step 7;
otherwise, proceed to Step 8.
7. Remove the screws securing the bottom internal safety shield panel and remove
the panel to gain access to the bottom conduit landing plate.
8. Remove the UPS cabinet top or bottom conduit landing plate to drill or punch
conduit holes (see Drawing 164201603-7 on page A-36).
9. Reinstall the conduit landing plate and install the conduit.
10. To locate the appropriate terminals and review the wiring and termination
requirements, see Drawing 164201603-10 starting on page A-46.
11. Route and connect the wiring.
12. If wiring TB1 battery cabinet interface connections, proceed to paragraph 4.8.2; if
wiring the X-Slot connections only, proceed to paragraph 4.8.3; otherwise,
proceed to Step 13.
13. When all wiring is complete, reinstall the safety shield panels removed in
previous steps. Secure with the retained hardware.
14. Close the control panel door and secure with the retained hardware.
15. Reinstall the door removed in Step 3 and secure with the retained hardware.
16. Close the door and secure the latch.