1027212
UPS 225 - 275 kVA/300kVAPF0.8
47
Revision E
User’s and Installation Guide
5.2 Installing distributed bypass control wiring
NOTE
When installing external wiring to the HotSync CAN Bridge Card terminals, route the wiring
through the internal opening in the X-Slot communication bay.
To install distributed bypass control wiring:
1.
Verify the UPS system is turned off and all power sources are disconnected. See Chapter 7: “UPS
operating instructions” for shutdown instructions.
2.
Perform the procedure listed in Section 5.1.
3.
Terminal block TB3 is accessible on the left side of the X-Slot communication bay (see Figure 4-8
on page 35). To gain access to terminal block TB1, TB2, and the left interface entry conduit landing
plates, loosen the screws securing the top protective cover panel and remove the panel. This panel
is to the right of the X-Slot communication bay (see Figure 4-8 on page 35). Retain the hardware for
later use.
4.
Remove the interface entry conduit landing plates to drill or punch holes (see Figure 4-4 on
page 30).
5.
Reinstall the interface entry plates and install the conduit.
6.
To locate the appropriate terminals and review the wiring and termination requirements, see Section
3.2.3 on page 20, Table 4-1 on page 38, and Figure 4-8 on page 35 through Figure 4-10.
7.
Route and install CAN wiring between the UPS cabinets. See Figure 5-2 and Table 5-1 on page 46
for the HotSync CAN Bridge Card terminal location and Figure 5-3, Figure 5-4, and Table 5-2 on
page 48 for wiring information.
8.
If a tie cabinet with Module Output Breakers (MOBs) is being wired, proceed to Step 11;
otherwise, proceed to Step 9.
9.
Route and install distributed bypass system pull-chain wiring between the UPS cabinets. See
Figure 5-5 and Table 5-3 on page 49 for wiring information.
10. Proceed to Step 12.
11. Route and install distributed bypass system pull-chain wiring between the UPS cabinets and tie
cabinet MOBs. See Figure 5-6 on page 50 and Table 5-4 on page 51 for wiring information.
NOTE
Setup of the HotSync CAN Bridge Card for parallel operation must be performed by an
authorized Eaton Customer Service Engineer. Contact an Eaton service representative to
schedule a date.
12. Reinstall the protective cover panel and secure with the cabinet mounted screws.
13. Close the front door and secure the latch.
14. If removed, reinstall the safety shield panel removed in Section 5.1, Step 5. Secure with the
retained hardware.
15. If removed, reinstall the left front panel removed in Section 5.1, Step 4 and secure with the
retained hardware.
