Ups Parallel Installation - KStar YDC9300-B Operation Manual

Note：
The BAT+ of the UPS connect poles is connected to the anode of the positive
battery, the BAT-N is connected to the cathode of the positive battery and the anode
of the negative battery, the BAT- is connected to the cathode of the negative battery.
Factory setting of the long-run unit is battery quantity---32pcs, battery
capacity---12V40AH (charger current 6A). When connecting 34/36/38/40 batteries,
please re-set desired battery quantity and its capacity after UPS starts at AC mode.
Charger current could be adjusted automatically according to battery capacity
selected. All related settings can be done through LCD panel or monitoring software.
CAUTION!
Ensure correct polarity battery string series connection. I.e.
inter-tier and inter block connections are from (+) to (-) terminals.
Don't mix batteries with different capacity or different brands, or
even mix up new and old batteries, either.
WARNING!
Ensure correct polarity of string end connections to the Battery
Circuit Breaker and from the Battery Circuit Breaker to the UPS
terminals i.e. (+) to (+) / (-) to (-) but disconnect one or more
battery cell links in each tier. Do not reconnect these links and do
not close the battery circuit breaker unless authorized by the
commissioning engineer.

UPS parallel Installation

3.9
The following sections introduce the installation procedures specified to the parallel system.
3.9.1 Cabinet installation
Connect all the UPS needed to be put into parallel system as below picture.
Make sure each UPS input breaker is in "off" 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, A (L1), B (L2), C (L3) lines are correct, and
grounding is well connected.
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