6-6
6-3 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 3G3JV
, stall prevention functions can be set independently for
accel
-
erating, running, and decelerating conditions.
n55 Stall Prevention Level during
Deceleration
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 overvol-
tage.
Stall Prevention during Deceleration with n55 Set to 0
Output
frequency
Deceleration time is controlled
to prevent overvoltage.
Deceleration time (Set value)
Time
Advanced Operation Chapter
6
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