9
3.9 Battery connection
The UPS adopts positive and negative double battery framework, totally 16pcs(optional 18/20) 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 cable, 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. The user can choose the capacity and the numbers of the batteries according to their
desire.
External battery connections for long-run units.
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---16pcs, battery
capacity---12V65AH(charger current 9.75A). When connecting 18/20 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.
Summary of Contents for YDC3300
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