Toshiba Tosvert VF-S15 Instruction Manual page 177

[If momentary power failure occurs]
Input voltage
Internal DC
voltage level
Motor speed
Note 5: If momentary power failure occurs during deceleration stop,
power ride-through control will not be performed.
 An example of setting when f302=2
Input voltage
Motor speed
Deceleration stop
• Even after the recovery from an input power failure, the motor continues deceleration stop. If the voltage in the
inverter main circuit falls below a certain level, however, control will be stopped and the motor will coast.
• If the voltage in main circuit falls below main circuit under voltage (moff) level at the deceleration stop operation
during power failure, the motor will coast and inverter displays stop and 0.0 alternately. The motor continues
coasting even after power supply is restored.
Non-stop control
Normal acceleration
Time
F-65
E6582175
6