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3.6 Procedures of connecting battery bank to UPS
The rated over-current protection breaker should be installed between the battery bank
and the UPS, please refer to the wiring table at the last section for the specification.
(1) Make sure that there are no voltages present on the input and output terminals, and
there is no voltage output of the external battery socket;
(2) Turn off the battery breaker;
(3) Remove the panel on the terminal bay and connect “+”,”N” and “-” wires
from UPS terminal bay to “+”,”N” and “-” of the battery box; make sure the battery
polarities are correctly connected;
(4) Use multimeter (DC Voltage) to measure the voltage of positive and negative
batteries as well as positive and negative polarity, then close the cover of the terminal
block.
Remark: Battery connection and replacement should be operated under the
system shutdown, Non-professionals are not allowed to carry out the task
otherwise electric shock may occur
