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UPS Installation Plan and Unpacking
•
When installing external interface wiring (for example, building alarm, relay output, battery breaker trip, and
X-Slot) to the UPS interface terminals, conduit must be installed between each device and the UPS
cabinet.
•
Install the interface wiring in separate conduit from the power wiring.
•
When installing internal interface wiring to X-Slot terminals, route the wiring through the internal opening in
the X-Slot communication bay.
•
All building alarm inputs or remote features require an isolated normally-open contact or switch (rated at 24
Vdc, 20 mA minimum) connected between the alarm input and common terminal. All control wiring and
relay and switch contacts are customer-supplied and may need to use Class 1 wiring, see above.
•
The building alarms can be programmed to display the alarm functional name.
•
LAN drops for use with X-Slot connectivity cards must be provided by the customer and may need to use
Class 1 wiring, see above.
•
The UPS battery aux signal wiring from the UPS must be connected to the battery disconnect device.
•
A supplemental 48 Vdc shunt trip signal for the battery disconnect device is provided, but is not required
for normal operation.
•
Battery aux and 48 Vdc shunt trip wiring should be a minimum of 18 AWG.
•
The REPO feature opens all contactors in the UPS cabinet and isolates power from your critical load. Local
electrical codes may also require tripping upstream protective devices to the UPS.
•
The REPO switch must be a latching-type switch not tied to any other circuits.
•
A jumper wire must be connected between pins 1 and 2 on TB1, if the normally-closed REPO contact is
not used.
•
REPO wiring should be a minimum of 22 AWG and a maximum of 14 AWG.
•
The REPO switch wiring must be in accordance with NEC Article 725 Class 2 requirements.
•
The maximum distance between the REPO and the UPS cannot exceed 150 meters (500 feet).
•
Alarm relay contacts have a maximum current rating of 5A and a switched voltage rating of 30 Vac and 28
Vdc.
•
Alarm relay wiring should be a minimum of 22 AWG.
NOTE 1
NOTE 2
3 3 . . 2 2 . . 6 6 D D i i s s t t r r i i b b u u t t e e d d B B y y p p a a s s s s P P o o w w e e r r W W i i r r i i n n g g P P r r e e p p a a r r a a t t i i o o n n
NOTE
Read and understand the following notes while planning and performing the installation:
46
Eaton
®
On all 9395P-1200 models that will be fed by a site generator at any time it is
recommended to have an "On Generator" sensing input connected and proven
functional. This allows the UPS to optimize its operation with the generator. This
function includes reduced input current and battery current limits, slower walk-in to ease
the load step on the generator initially, and HIGH ALERT mode for ESS and VMMS
operation.
HIGH ALERT mode is desired because any loads with a leading power factor will not be
seen by the generator. Rectifier operation will be much softer while on generator
thereby increasing overall system stability.
For full-rated operation of a Distributed Bypass System when in Bypass or ESS mode,
the line frequency impedance of all conduction paths must be equal when assessed
from the point where the Bypass Power Source connects to the System Switchgear to
the point where the Common Load connects to the System Switchgear.
Power Xpert
®
9395P-1200 Installation and Operation Manual 164000500—Rev 11
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