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Eaton 9PHD UPS 30–200 kW
7.
Route and install the LAN, telephone, and other cables to the appropriate
MiniSlot cards. The cable route is through the conduits in the corner posts
of the UPS.
8.
For operator instructions, refer to the manual supplied with the MiniSlot
card.
9.
When all the wiring is completed, reinstall the protective covers of the
communications area, close the front door and secure it with the latch.
5.6.5
The insulation monitor is installed to one of the UPS signal inputs and is
metering insulation resistance between the UPS output and optional internal
output isolation transformers. Additionally, an auxiliary contact is available for
use outside the UPS equipment. The insulation monitor contact is available in
signal terminal X10, with the following pins:
•
X10:24 NC
•
X10:25 Return
•
X10:26 NO
This interface is separated from the UPS signal input, but it should maintain
SELV characteristic, as it is not properly isolated from the UPS signal input. The
maximum contact rating is 24 Vdc or 30 VAC. If utility level signaling is required,
it can be arranged through an industrial relay card. To accomplish this, contact
your local service representative.
5.6.6
The installation of the signal interface connections in a parallel system is done
by following the aforementioned instructions. Signal inputs can be paralleled
between the units, that is, the same contact can be used for several units' signal
input signaling. This concerns also the EPO signal.
5.7
The outputs of multiple 9PHD UPS systems can be connected in parallel. Up to
8 units can be paralleled. The UPS static bypass power rating needs to be
identical among all the paralleled units. However, paralleled UPS cabinets can
be housed with different number of UPM power modules.
The outputs are paralleled to increase the load capacity of the power system
and for redundancy. The system is paralleled for (N+1) redundancy, as long as
there is always one or more UPS online than required to support the load. The
system is paralleled for capacity if all UPSs in a system are required to support
the load.
Communication between the UPSs is required for system metering and mode
control. The system level communication and control are accomplished using a
©
Eaton Corporation plc 2017. All rights reserved.
Insulation monitor signals (option)
Installing signal interface connections in a parallel system
Wiring parallel 9PHD UPS systems
User's and installation guide
Document ID: P-164000531
71 (127)
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