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Toshiba Tosvert VF-AS1 Instruction Manual Page 104

The new high-performance inverter.
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[Parameter setting]
Title






Note 1: The power ride-through control time when = depends on the setting of , and the
deceleration time when = depends on the setting of .
Also, the deceleration time and the acceleration time when = or  depend on the setting of
 and that of , 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 along with this parameter function.
Note 3: These functions do not operate at the time of torque control.
Note 4: Jog run function doesn't operate at synchronized acceleration/deceleration.
Note 5: Although the setting of  can be written when  is set to  (non-stop control), it cannot be
written when  is set to  (momentary power failure slowdown stop).
Note 6: For the parameter
 An example of setting when =
[When power is interrupted]
5
Input voltage
Internal DC
voltage level
Motor speed
*1: Note: If power is interrupted during deceleration stop, power
ride-through control will not be performed.
[If momentary power failure occurs]
Input voltage
Internal DC
voltage level
Motor speed
*1: Note: If power is interrupted during deceleration stop, power
ride-through control will not be performed.
Function
Regenerative power ride-through
control selection
Non-stop control time/Deceleration
time during power failure
Synchronized deceleration time
Synchronized acceleration time
Under voltage detection level
Regenerative power ride-through control level
,
100% corresponds to 200V (200V class) or 400V (400V class).
*1
Regenerative power
ride-through control selection
Coasting stop
About 100ms~10s
*1
Non-stop control
Normal acceleration
Adjustment range
:Disabled
:Power ride-through
: Deceleration stop during power failure:
:Synchronized deceleration/acceleration
(synchronized acceleration/deceleration signal)
:Synchronized deceleration/acceleration
(synchronized acceleration/deceleration
signal+power failure)
~ sec.
~ sec.
~ sec.
~ %, : Automatic mode
~ %


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.


E-34
E6581442
Default setting






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