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5. OPERATION
To power up the UPS, ensure the switch on PTS is in “UPS Mode” position. Before commissioning, make sure
batteries are fully charged and line power is qualified.
5.1 Switch on UPS in Line mode
1. Switch on battery circuit breaker. All LEDs will be on and LCD will display Startup page, and fan will be on.
2. Switch on AC input breaker. After line power is qualified, the LCD will display normal, buck or boost
according to line voltage range and line threshold setting.
Note: AVR function default setting is disabled. You may activate it via LCD panel or USB/RS232/SNMP
communication.
5.2 Switch the UPS from line mode to battery mode
UPS will operate in battery mode if manually switch the input circuit breaker off. The LCD will display Battery
and output LED will flash to show the UPS is running on backup battery power.
5.3 Switch from battery mode to line mode
After switching on the input circuit breaker, if line input is qualified, UPS will transfer to line mode with output
LED on to show UPS is running from utility power.
Note: If UPS keeps switching between inverter and line mode because of a noisy line, the setting of “UPS Sense
type” should be changed from Normal to Generator.
5.4 Switch off procedure
For any reason you need to switch off UPS, please follow below procedure.
1. Switch off output circuit breaker.
2. Switch off input circuit breaker.
3. Switch off battery circuit breaker. The output LED will turn off and LCD display will shut off.
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