Toshiba Q9 Plus Bypass ASD Installation & Operation Manual page 242

[If momentary power failure occurs]
Input voltage
Internal DC
voltage level
Motor speed
Note 5: If momentary power failure occurs during deceleration stop,
6
power ride-through control will not be performed.
An example of setting when f302=2
Input voltage
Motor speed
• 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 undervoltage (moff) level at Non-stop control 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.
Normal acceleration
Deceleration stop
F-62
Time
E6581611