P9 ASD Installation and Operation Manual
135
Regenerative Power Ridethrough Mode
Program
Protection
Under-Voltage/Ridethrough
This parameter determines the motor control response of the ASD 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 is/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 (e.g., wire spools, bobbin winder for textile machines, etc.).
must be set up to synchronize motor operation as to avoid
breakage in these types of applications.
Note:
If used to restart the motors, the Retry setup of
is required.
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
.
2.
Select the
Ridethrough Time
3.
Select the
Synchronized Stop/Start Times
at
(if required).
Note:
are not functional while operating in the
Torque
or
Position
control modes, or for the
Jog Run
function (
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
.
Direct Access Number — F302
Parameter Type —
Selection List
Factory Default —
Off
Changeable During Run —
Yes
Summary of Contents for P9
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