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3.2.6 Power off
After switching off the inverter, switch off the AC and battery circuit breakers, the
LCD control panel will be off, fan will stop. If there is battery bank connected, it will
take 30 seconds to shut down the system completely.
The power of the equipment will be cut off when the UPS is powered off
3.3 Working Mode and transferring
Usually, the UPS should be set to work in AC mode, so it will transfer to battery
mode automatically without interruption when AC fails. When the UPS is overloaded,
it will transfer to bypass mode without interruption. When the inverter is defective or
over temperature occurred inside the UPS, the UPS will transfer to bypass mode if
the bypass is normal.
3.3.1 Transfer to bypass if overload
When the load of the UPS is beyond normal range and lasts for the time set, it will
transfer to bypass mode and beeps twice every second, then the load is powered by
AC directly. Please decrease the load immediately until the alarm is eliminated. The
UPS will start the inverter after 5 mins. In order to protect the load and the UPS, it is
required to set the limitation times of transferring to bypass mode due to overload in
1 hour. If it exceeds the limitation times set, the UPS will keep in bypass mode.
3.3.2 Normal mode to battery mode
The UPS will go to battery mode if the AC is failed. The UPS will shut down
automatically if batteries are drained. When AC recovers, the UPS will start the
inverter automatically.
3.3.3 Go to Bypass mode due to over temperature
The temperature inside UPS may be high if ambient temperature is high or the
ventilation is poor, then the UPS will go to Bypass mode, fault indicator will be on
(red), the LCD will display that the inner temperature is high, long beeps will come. If
so, please cut off the input power of the UPS, move objects that affecting the
ventilation far from the UPS if any or increase the distance between the UPS and
the wall. Wait until the UPS temperature becomes normal then restart it.
3.3.4 Output short circuit
When the UPS output is in short circuit, the UPS will cut off the output, fault indictor
will be on ( red ), the LCD will display output is in short circuit, long beeps come. If so,
please disconnect the load in short circuit, cut off the UPS input power and wait for
10mins, the UPS will shut down automatically or press the off button to shut down in
after10s. Before restarting the UPS, please make sure that the short circuit problem
has been solved