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3.8 Battery connection
The UPS uses a positive and negative double battery framework, total 16 (optional 18/20)
pieces in series. A neutral cable is retrieved from the joint between the cathode of the 8
th
(9
th
/10
th
) and the anode of the 9
th
(10
th
/11
th
) of the batteries. Then the neutral, the battery
positive and the battery negative are connected with the UPS respectively.
The battery sets between the Battery anode and the neutral are called positive batteries
and that between neutral and cathode are called negative ones. Users can choose the
capacity and the numbers of the batteries according to their demands. The connection is
shown as following:
Note：
The BAT+ of the UPS connect poles is connected to the anode of the positive battery,
the BAT- 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 default setting for battery quantity is 16pcs and for battery capacity is 7AH
(charger current 1A). When connecting 18pcs or 20pcs batteries, please re-set battery
quantity and its capacity after UPS starts at AC mode.
Charger current could be adjusted automatically according to battery capacity
selected. (Also charger current is selectable). Via the setting tool, all related
parameter settings can be performed. These corresponding settings are done though
LCD.
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.
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