Eaton Powerware BladeUPS User Manual page 93

10. Verify that a blue terminating plug is installed in the CAN IN port on the first UPS
(UPS 1 in Figure 69) and a blue terminating plug installed in the CAN OUT port on
the last UPS (UPS 3 in Figure 69):
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If you are modifying a legacy configuration, install a blue terminating plug in
the CAN IN port on the first UPS. This blue terminating plug replaces the black
terminating plug removed from the CAN IN port in Step 8. Also install a blue
terminating plug in the CAN OUT port on the last UPS.
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If you are installing a UPS in an existing, new configuration, verify that a blue
terminating plug is installed in the CAN IN port on the first UPS and a blue
terminating plug installed in the CAN OUT port on the last UPS. After adding
the new UPS, verify that only the first and last UPSs in the configuration have
a blue terminating plug installed.
11. If not already installed, using the supplied connectors, install a CAN Bridge Card
cable between each UPS as shown in Figure 69, connecting the CAN OUT port
on one UPS to the CAN IN port on the next UPS.
On startup, the parallel system will identify the UPS wired after UNIT 1 as
UNIT 2, and so forth.
NOTE You can configure the parallel system with UPS 1 at the bottom of the rack (as shown in Figure 69)
or at the top of the rack.
12. For a parallel system not previously shut down, verify that any alarms related to
reconfiguring the CAN Bridge Cards have cleared.
13. Install a redundant signal cable between the For Parallel Use Only and
Standalone/Parallel terminals on each UPS as shown in Figure 69.
Be sure to check correct polarity when installing the cable.
If polarity or wiring is not correct, the parallel system does not operate normally. For example, when shutting
down one UPS, the remaining UPS transfers the load to bypass instead of supporting the load. Verify that all
wiring is correct for proper operation.
14. Remove the Standalone/Parallel terminal block connector from the last UPS
(UPS 3 in Figure 69).
Eaton BladeUPS (12 kVA) User's Guide
STANDARD SYSTEM INSTALLATION
C A U T I O N
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164201649 Rev 6 www.eaton.com/powerqualtiy
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