Example Of Low Voltage Operation - Toshiba TOSVERT VF-S15 Instruction Manual

4. Example of Low voltage operation

<Example>
1. Switch to the battery
- Undervoltage protection (moff) activates after power failure.
- Be sure to turn off the power supply so that voltage is not applied to the battery when the power
supply is recovered.
- Switch to the battery. Undervoltage protection (moff) is still displayed.
- Display of moff may disappear by power interruption after power failure and during switching to
battery.
2. Input of Low voltage operation signal
- Low voltage operation mode activates by turning on the low voltage operation signal of Terminal S1
while the inverter is in Undervoltage protection (moff) status.
- Undervoltage protection (moff) is cancelled with the voltage more than the value set with Low
voltage operation DC voltage (f298).
3. Low voltage operation
- Low voltage operation activates by inputting the operation command.
- If frequency command is larger than the value set with Low voltage operation upper limit frequency
(f297), the frequency is up to f297.
4. Cancellation of Low voltage operation mode
- After necessary operation is completed, Low voltage operation mode is cancelled by turning off the
Low voltage operation signal of Terminal S1 while the inverter stops, and the inverter returns to
normal operation.
- Undervoltage protection (moff) activates.
- Turn off the battery.
- Normal operation is enabled by turning on the power after power supply recovery.
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