E6581158
F-36
6
6.13.2 Regenerative power ride-through control/Deceleration
stop
H : Regenerative power ride-through control/Deceleration stop
• Function
1) Regenerative power ride-through control continues the operation of the motor by utilizing motor
regenerative energy in the event of momentary power failure.
2) Slowdown stop in the event of momentary power failure: If a momentary power failure occurs dur-
ing operation, the inverter stops forcibly. (Deceleration time varies with control.) When operation is
stopped, the message “UVQR” is displayed (alternately) on the operation panel.
After the forced stop, the inverter remains static until you put off the operation command momen-
tarily.
[Parameter setting]
Title Function Adjustment range Default setting
H
Regenerative power ride-through control /
Deceleration stop
0: Disabled
1: Enabled
2: Slowdown stop
0
Note: Even when this parameter is set, the particular load conditions may cause the motor to coast. In this
case, use the auto-restart function H along with this parameter function.
[When power is interrupted]
Motor speed
About 100ms
Input voltage
* 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.
[If momentary power failure occurs]
otor speed
Input voltage
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