COMMUNICATION
EATON Powerware
®
9355 UPS (20/30 kVA) Installation and Operation Manual S 164201626 Rev B www.powerware.com
55
Industrial Relay Card
The IRC uses normally -open or normally-closed dry relay contacts to indicate the UPS
status as listed in Table 4. Figure 41 shows an IRC.
Plug-in Terminal Block J1 to RMP
Cable Exit Opening for 1/2” Conduit
or Provided Strain Relief
Plug-in Terminal Block J2
from Relay Contacts
to Customer Monitoring Equipment
Figure 41. Industrial Relay Card
1. Verify that the UPS is turned off and all power sources are removed.
2. Install wiring from the IRC to the monitoring equipment using 1/2” conduit
through the cable exit opening in the IRC (see Figure 41).
3. Connect wiring between the IRC and the monitoring equipment using
terminations shown in Table 4. See Figure 41 for plug-in terminal block locations.
4. Install the IRC into an open X-Slot communication bay (see page 48).
5. To check the operation of the IRC, ensure that the UPS is supplying the load via
the inverter or bypass. If the indicators on the customer’s monitoring equipment
show the appropriate status, then it is operating correctly.
If the IRC is not operating correctly, check the wiring, the fuse on the IRC, and
the plug-in terminal blocks for proper seating. If all connections are secure but
the IRC still does not operate correctly, replace the fuse. If this does not correct
the problem, contact your service representative for verification that the IRC is
working correctly.
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