Communication
Eaton 9355 UPS (20/30kVA) Installation and Operation Manual 164201626—Rev F
www.eaton.com/powerquality
59
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 45 shows an IRC.
Figure 45. 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 45).
3.
Connect wiring between the IRC and the monitoring equipment using terminations shown in Table 4. See
Figure 45 for plug-in terminal block locations.
4.
Install the IRC into an open X-Slot communication bay (see Figure 36 on page 51).
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.
Table 4. IRC Wire Terminations
IRC Terminal
Function
Remarks
J2-1
NC
Normal mode
J2-2
COM
J2-3
NO
J2-4
NC
Bypass mode
J2-5
COM
J2-6
NO
J2-7
NC
Battery mode
J2-8
COM
J2-9
NO
J2-10
NC
Alarm mode
J2-11
COM
J2-12
NO
NOTE
Maximum contact rating: 250 Vac, 30 Vdc @ 5A; Wire range: 16–24 AWG
Plug-in Terminal Block J1 to RMP
Cable Exit Opening for 1/2” Conduit
or Provided
S
train Relief
Plug-in Terminal Block J2
from Relay Contacts
to Customer Monitoring Equipment
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