Omron SYSDRIVE 3G3MV-A2001, User Manual

Page: 169 / 344

6-27
6-6 Stall Prevention Function
A stall will occur if the motor cannot keep up with the rotating magnetic field on the motor
stator side when a large load is applied to the motor or a sudden acceleration/decelera-
tion is performed.
In the 3G3MV, stall prevention functions can be set independently for accelerating, run-
ning, and decelerating conditions.
n092
Stall Prevention during
Deceleration Register 015C Hex Changes during
operation No
Setting
range 0, 1 Unit of
setting 1 Default setting 0
Set Values
Value Description
0 Stall prevention during deceleration
1 No stall prevention during deceleration
•
If 1 is set, the motor will be decelerated according to the set deceleration time. If the deceleration time
is too short, the main circuit may result in overvoltage.
•
If 0 is set, the deceleration time will be automatically lengthened to prevent overvoltage.
•
Be sure to set n092 to 1 to disable stall prevention during acceleration if the braking resistor or Braking
Resistor Unit is in use. If n092 is set to 0, no deceleration time reduction will be possible because the
braking resistor or Braking Resistor Unit connected is not used.
Stall Prevention during Deceleration with n092 Set to 0
Output
frequency
Deceleration time is controlled
to prevent overvoltage.
Deceleration time (Set value)
Time
Advanced Operation Chapter 6