Toshiba Tosvert VF-S15 Instruction Manual page 176

[Parameter setting]
Title
Regenerative power ride-through
f302
control (Deceleration stop)
Synchronized deceleration time
(time elapsed between start of
f317
deceleration to stop)
Synchronized acceleration time
(time elapsed between start of
f318
acceleration to achievement of
specified speed)
Note 1: The deceleration time and the acceleration time when f302=3 or 4 depend on the setting of f317
and that of f318, respectively.
Note 2: Even if these functions are used, a motor may coast according to load conditions.
In this case, use the auto-restart function (f301) for the smooth restart after power supply is restored .
Note 3: Jog run function doesn't operate at synchronized acceleration/deceleration.
6
 An example of setting when f302=1
[When power is interrupted]
Input voltage
Internal DC
voltage level
Motor speed
Note 4: If power is interrupted during deceleration stop, power ride-through control will not be performed.
Function
0: Disabled
1: Regenerative power ride-through control
2: Deceleration stop during power failure
3: Synchronized acceleration / deceleration
(signal)
4: Synchronized acceleration / deceleration
(signal + power failure)
0.0-3600 (360.0) (s)
0.0-3600 (360.0) (s)
Regenerative power
ride-through control selection
Coasting stop
About 100ms~10s
F-64
Adjustment range
●The time for which the operation of the motor
can be continued depends on the machine
inertia and load conditions. Before using this
function, therefore, perform verification tests.
●Use with the retry function allows the motor to
be restarted automatically without being
brought to an abnormal stop.
E6582175
Default setting
0
2.0
2.0