Ups Installation For Parallel Systems - PROLiNK Master II Series User Manual

NOTE 1 : Make sure the cable is securely connected to the terminal.
NOTE 2 : Please install an output breaker between the output terminal and the load, and the breaker should
have a leakage current protective function if necessary.
6) Reinstall the terminal block cover on the back panel of the UPS .
Warning: (For standard models only)
● Make sure the UPS is off before installation. The UPS should not be turned on during cable connection.
● Do not try to convert the standard model into a long-term model . In particular, do not attempt to
connect a standard internal battery to an external battery. Battery type and voltage may vary, risk of
electric shock or fire may occur!
Warning: (For long-term models only)
● Make sure the DC disconnect or other protective device between the UPS and the external battery pack
is plugged in for added safety. If not, please install it carefully. Turn off the battery disconnect before
installation.
NOTE: Set the battery pack breaker to the "OFF" position and then plug in the battery pack.
● Pay special attention to the rated battery voltage marked on the back panel. If you want to change the
battery number in chain, make sure you change the UPS settings accordingly. A connection with the
wrong battery voltage can cause permanent damage to the UPS.
● Pay special attention to the polarity marks on the external battery terminal blocks. A connection with the
wrong battery voltage can cause permanent damage to the UPS.
● Ensure adequate protective grounding/earthing cable. The reliability of specifications, colors, positions,
joints, and current cable conductance must be verified.
● Make sure utility input &; output wiring is rated correctly. The reliability of specifications, colors, positions,
joints, and current cable conductance must be verified. Make sure the L/N side is correct, not reversed or
short-circuited.

2-4. UPS Installation for Parallel Systems

If the UPS is only for single operation, you can skip this section .
1) Install and connect the UPS according to sections 2-3.
2) Connect the output cable of each UPS to the output breaker .
3) Connect all output breakers to the primary breaker. This main output breaker will then connect directly
to the load .
4) Common battery packs or separate battery packs for each UPS are allowed.
5) See the following wiring diagram:
Wiring diagram of parallel systems for INSPIRE 83340-QS
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