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34
3. Installation and Wiring
Models S3M80K and S3M100K
Note: The LCD indicates L1 as (A), L2 as (B) and L3 as (C).
Make sure each UPS input breaker is in “o” position and there is no any output from each UPS connected. Battery
groups can be connected separately or in parallel, which means the system itself provides both separate battery and
common battery.
WARNING!
Make sure the N, L1 (A), L2 (B), L3 (C) lines are correct, and grounding is well connected.
3.13.2 Parallel Cable Installation
Shielded and double insulated control cables must be interconnected in a ring conguration between UPS units as
shown below. The ring conguration ensures high reliability of the control. Use only the parallel cables supplied.
UPS 1 UPS 2
Input Output
Note: Refer to section 4.3.6.2.2 step 2 for
information on conguring the UPS units in
parallel for capacity or redundancy using the
display.
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