8
NOTE:
Set the battery pack breaker in “OFF” position and then install the battery pack.
● Pay highly attention to the rated battery voltage marked on the rear panel. If you want to change the
numbers of the battery pack, please make sure you modify the setting simultaneously. The connection
with wrong battery voltage may cause permanent damage of the UPS. Make sure the voltage of the
battery pack is correct.
● 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.
2-4. 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.
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.
NOTE:
The parallel system can not use one battery pack. Otherwise, it will cause system permanent failure.
6)
Refer to the following wiring diagram:
