SNR UPS-ONT-010-BXL31 [16/34] Operating procedure for connecting the long backup time model ups with the external battery
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SNR UPS-ONT-010-BXL31 [16/34] Operating procedure for connecting the long backup time model ups with the external battery

SNR UPS-ONT-010-BXL31 [16/34] Operating procedure for connecting the long backup time model ups with the external battery
Installation
High Performance 10-20k UPS
14
power supply.
11) Suggest charging the batteries for 8 hours before use. After connection, turn the input breaker
in the “ON” position, the UPS will charge the batteries automatically. You can also use the
UPS immediately without charging the batteries first, but the backup time may be less than
the standard value.
12) If it is necessary to connect the inductive load such as a motor or a laser printer to the UPS,
the start-up power should be used for calculating the capacity of the UPS, as its start-up
power consumption is too big when it is started.
2.3 Operating procedure for connecting the long backup time model UPS with the
external battery
1. The nominal DC voltage of external battery pack is 192VDC. Each battery pack consists of
16 pieces of 12V maintenance free batteries in series. To achieve longer backup time, it is
possible to connect multi-battery packs, but the principle of “same voltage, same type”
should be strictly followed.
2. For UPS 10KL, select the UL1015 8AWG(10mm
2
) . For UPS 20KL, select 4AWG(25mm
2
)
wire or other insulated wire which complies with UL Standard for the UPS battery wirings.
The procedure of installing battery bank should be complied with strictly. Otherwise you
may encounter the hazardous of electric shock.
1) A DC breaker must be connected between the battery pack and the UPS. The capacity
of breaker must be not less than the data specified in the general specification.
2) Set the battery pack breaker in “OFF” position and connect the 16 pieces of batteries
in series.
3) You must connect the external battery cable to the battery first, if you connect the
cable to the UPS first, you may encounter the hazardous of electric shock. The
positive pole of the battery is connected to the UPS with red wire; the negative pole of
the battery is connected to the UPS with black wire; the green and yellow ribbon wire
is connected to the ground of the battery cabinet.
3. To complete the connection of the external battery cable into the UPS. Do not attempt to
connect any loads to the UPS now. You should connect the input power wire to the right
position first. And then set the breaker of the battery pack in the “ON” position. After that
set the input breaker in the “ON” position. The UPS begins to charge the battery packs at the
time.
2.4 Connect Parallel Cables
1. Brief introduction
As long as the UPS is equipped with parallel cables, up to 3 UPSs can be connected in
parallel to realize output power sharing and power redundancy.
2. Parallel installation
1) Users need to opt two standard 15-pin communication cables which length is appropriate
to be less than 3m.
2) Strictly follow the stand-alone wiring requirement to perform the input wiring of each
UPS.

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