Ups Installation For Parallel System - PROLiNK MASTER II Series User Manual

● Pay highly attention to the polarity marking on external battery terminal block, and make sure the
correct battery polarity is connected. Wrong connection may cause permanent damage of the UPS.
● Make sure the protective earth ground wiring is correct. The wire current spec, color, position,
connection and conductance reliability should be checked carefully.
● Make sure the utility input & output wiring is correct. The wire current spec, color, position, connection
and conductance reliability should be checked carefully. Make sure the L/N site is correct, not reverse
and short-circuited.

2-5. UPS Installation for Parallel System

If the UPS is only available for single operation, you may skip this section to the next.
1) Install and wires the UPSs according to the section 2-3.
2) Connect the output wires of each UPS to an output breaker.
3) Connect all output breakers to a major output breaker. Then this major output breaker will directly
connect to the loads. Refer to diagram 1 and diagram 3.
4) Each UPS is connected to an independent battery pack.
5) Remove the cover of parallel share current cable port on the UPS, connect each UPS one by one with the
parallel cable and share current cable, and then screw the cover back again. Refer to diagram 2 and
diagram 4.
NOTE: The parallel system can not use one battery pack. Otherwise, it will cause system permanent failure.
Diagram 1: Power cable connection for tower model
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