Parameter Description
Parameters
155
5.6
3
Backlash Compensation Function Selection and
Acceleration and
Deceleration Interrupt Waiting Function(P.229~P.233) V/F
P.229 “Backlash compensation function selection and acceleration and
deceleration interrupt waiting function”
P.230 “Interrupt frequency at acceleration”
P.231 “Interrupt time at acceleration”
P.232 “Interrupt frequency at deceleration”
P.233 “Interrupt time at deceleration”
Parameter
Factory setting
Setting range
Remarks
229
0
0~2
0
None
1
Backlash compensation function
2
Acceleration and Deceleration
Interrupt Waiting Function
230
1Hz
0~650Hz
---
231
0.5s
0~360s
---
232
1Hz
0~650Hz
---
233
0.5s
0~360s
---
● Backlash countermeasures:
What is backlash compensation?
Reduction gears have an engagement gap and a dead zone between forward and reverse
rotation. This dead zone is called backlash, and the gap disables a mechanical system
from following motor rotation.
More specifically, a motor shaft develops excessive torque when the direction of rotation
changes or when constant-speed operation shifts to deceleration, resulting in a sudden
motor current increase or regenerative status.
To avoid backlash, acceleration/deceleration is temporarily stopped. Set the
acceleration/deceleration stopping frequency and time in P.229 and P.233.
