Regenerative Power Ride-Through Control/Deceleration Stop During Power Failure - Toshiba TOSVERT VF-PS1 Instruction Manual

2) Restarting motor during coasting (Motor speed search function)
= : This function operates after the S3-CC terminal connection has been opened first and then connected again.
Example: When ST standby signal is assigned to the S3 terminal, setting
standby signal always ON" setting. By default, this parameter is set to
(assigns ST standby signal to the S3 terminal) makes it possible to momentarily stop and restart the motor
by just turning the S3 terminal off and then back on.
Title
* To restart the inverter in operation panel operation mode, press RUN key after a power failure.
* When
5
inverter may trip (
= : When either
= : It detects the motor speed at every time when motor is starting. It is effective to drive a motor when the
motor has been running by outside factor while not being driving the motor in the inverter. It is possible to start
smoothly by auto-restart control. However, please note that it is not likely to be able to speed detection when the
residual voltage doesn't remain in the motor.
Operation and application of the auto-restart function
• By using retry function
The motor coasts during the waiting period between the entry of a start command and the start of operation. If the coasting
of the motor during this period does harm to the machine, do not use the retry function.
• At restart, it takes several seconds. for the inverter to check to see the number of revolutions of the motor. For this reason,
the start-up takes more time than usual.
• When the auto restart function is selected, this function is actuated also at time of activation of motor and at the first
operation after the reset of tripping. The operation will restart after the waiting time passes.
• Use this function when operating a system with one motor connected to one inverter. This function may not operate
properly in a system configuration with multiple motors connected to one inverter.

5.18.2 Regenerative power ride-through control/Deceleration stop during power failure

• Function
1) Regenerative power ride-through control: When momentary power failure occurs during operation, this
2) Deceleration stop during power failure:
Motor speed
F-CC
S3 (ST operation standby
signal) -CC
Function
:Disabled
:At auto-restart after momentary stop
Auto-restart control
:When turning ST operation standby
selection
signal on or off
:   +
(Number of PG input phases) =
: speed error) if the direction of rotation of the motor does not agree with.
= or
together, auto restart function can be actuated at the time of tripping.
: Regenerative power ride-through control
: Non-stop control time/Deceleration time during power failure
: Under voltage detection level
: Regenerative power ride-through control level
Adjustment range
, :At start-up
(single phase) in PG feedback vector control mode (
= , or both conditions consist, it operates.
function makes operation continue using the regeneration
energy from a motor.
When momentary power failure occurs during operation, this
function stops the motor quickly compulsorily. A forcible stop is
carried out in (Deceleration time) using the
regeneration energy from the motor.
(Deceleration time varies with control.)
After the forced stop, the inverter remains static until you put off
the operation command momentarily.
E-32
E6581531
to 2, to (cancels the "ST
: always ON.) and
Default setting Example of setting
or
= ), the
to