Regenerative Power Ridethrough Mode; Ridethrough Setup Requirements - Toshiba H9 ASD Installation And Operation Manual

F302

Regenerative Power Ridethrough Mode

Program Protection Under-Voltage/Ridethrough
This parameter determines the motor control response of the drive in the event
of a momentary power outage or under-voltage condition.
During a Ridethrough, regenerative energy is used to maintain the control
circuitry settings for the duration of the Ridethrough; it is not used to drive the
motor. The motor(s) of the system are stopped and then restarted automatically
if so configured.
In a multiple-motor application, there will be a requirement to synchronize the
stopping and restarting of the motors as not to cause breakage in the product
being processed by the motors stopping/starting at different times (e.g., wire
spools, bobbin winder for textile machines, etc.). Parameters
must be setup to synchronize motor operation as to avoid breakage in these
types of applications.
Note: If used to restart the motors, the Retry setup of
Note: The Jog function will not operate while in the Synchronized
Decel/Accel mode.
Settings:
0 — Off
1 — Ridethrough On
2 — Decel Stop
3 — Synchronized ACC/DEC (TB)
4 — Synchronized ACC/DEC (TB + Power Off)

Ridethrough Setup Requirements

1. Select the Ridethrough Mode at F302.
2. Select the Ridethrough Time at F310.
3. Select the Synchronized Stop/Start Times at
Note: F317 and F318
or Position control modes, or for the Jog Run function (F260).
4. Set a discrete input terminal to Power Failure Synchronized Signal and
activate the terminal to enable the Synchronized Accel/Decel function.
5. Select the Ridethrough Control Level at F629.
134
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.ctiautomation.net - Email: info@ctiautomation.net
F317/F318
are not functional while operating in the Torque
Direct Access Number — F302
Parameter Type — Selection List
Factory Default — Off
Changeable During Run — Yes
F317 and F318
F301 is required.
(if required).
H9 ASD Installation and Operation Manual
F302