GRAFENTHAL GmbH - User Manual UPS
PR-1000/-1500/-2000/-3000
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3-6. Operating Mode Description
Operating mode
Description
LCD display
Online mode
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 online mode.
ECO mode
Energy saving mode:
When the input voltage is within voltage
regulation range, UPS will bypass voltage to
output for energy saving.
Frequency
Converter mode
When input frequency is within 40 Hz to 70
Hz, the UPS can be set at a constant output
frequency, 50 Hz or 60 Hz. The UPS will
still charge battery under this mode.
Battery mode
When the input voltage is beyond the
acceptable range or power failure and alarm
is sounding every 4 second, UPS will backup
power from battery.
Bypass mode
When input voltage is within acceptable
range but UPS is overload, UPS will enter
bypass mode or bypass mode can be set by
front panel. Alarm is sounding every 10
second.
Standby mode
UPS is powered off and no output supply
power, but still can charge batteries.
