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10.3 Operating procedure for connecting the long backup time model
UPS with the external battery
1) The nominal DC voltage of external battery pack is 240VDC. Each battery pack
consists of 20 pieces of 12V maintenance free batteries in series. To achieve
longer backup time, it is possible to connect multi-battery packs, but the
principle of “same voltage, same type” should be strictly followed.
2) The connector of the external battery cable is used to plug into the external
battery socket of the UPS, the other end of the external battery cable is used to
connect with the external battery pack(s). The procedure of installing battery
pack should be complied with strictly. Otherwise you may encounter the
hazardous of electric shock.
a) Set the battery pack breaker in “OFF” position.
b) You must connect the external battery cable to the battery first, if you
connect the cable to the UPS first, you may encounter the hazardous of
electric shock. Then connect the other end to UPS.
3) To complete the connection by plugging the connector of the external battery
cable into the external battery socket of the UPS. Do not attempt to connect
any loads to the UPS now. You should connect the input power wire to the
right position first. And then set the breaker of the battery pack in the ON
position. After that set the input breaker in the ON position. The UPS begins
to charge the battery packs at the time.
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