Njoy Balder Series User Manual page 15

• CVCF mode
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. When used in CVCF mode, the power of the UPS
is de-rated to 60%.
LCD display
• Battery mode
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
When the input voltage is beyond the acceptable range or power failure, UPS
will activate backup power from battery and alarm will beep every 4 seconds.
LCD display
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• Battery Test
When UPS is in AC mode or CVCF mode, press "Test" key for more than 0.5s.
Then the UPS will beep once and start "Battery Test". The line between I/P and
inverter icons will blink to remind users. This operation is used to check the
battery status.
LCD display
• Fault status
When UPS has fault happened, it will display fault messages in LCD panel.
LCD display
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