Stall Prevention Function - Omron SYSDRIVE 3G3MV User Manual

Advanced Operation

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 sud-
den acceleration/deceleration is performed.
In the 3G3MV, stall prevention functions can be set independently for
accelerating, running, and decelerating conditions.
n092 Stall Prevention during
Deceleration
Setting 0, 1
range
Set Values
Value
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 overvol-
tage.
·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 reduc-
tion 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
Register 015C
Unit of
setting
Description
Deceleration time is controlled
to prevent overvoltage.
Deceleration time (Set value)
Changes during
Hex operation
1 Default setting
Chapter 6
No
0
Time
6-31