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3-7. Operating Mode/Status Description
Operating mode/status
AC mode
Description
When the input voltage is within acceptable range, UPS will provide pure
and stable AC power to output. The UPS will also charge the battery at
AC mode.
LCD display
CVCF mode
Description
When input frequency is within 46 to 64Hz, the UPS can be set at a
constant output frequency, 50 Hz or 60 Hz. The UPS will still charge
battery under this mode.
LCD display
Battery mode
Description
When the input voltage is beyond the acceptable range or power failure,
UPS will backup power from battery and alarm will beep every 4 seconds.
LCD display
Bypass mode
Description
When input voltage is within acceptable range and bypass is enabled,
turn off the UPS and it will enter Bypass mode. Alarm beeps every two
minutes.
LCD display
Battery Test
Description
When UPS is in AC mode or CVCF mode, press “Test” key for more than