Parameter Description
Parameter Description
128
• To avoid a series of dangerous conditions caused by the broken travel switch, the one-way running
time which is the limit time of positive and reverse rotation. The two travel switches are not
allowed to close in the meantime, or the system will stop.
The diagram of operation flow
5.61 Backlash Compensation and Acceleration/Deceleration Interrupted for
Waiting Function (P.229~P.233) V/F
P.229 “Backlash compensation and acceleration/deceleration interrupted for
waiting function selection”
P.230 “The acceleration interrupt frequency”
P.231 “The acceleration interrupt time”
P.232 “The deceleration interrupt frequency”
P.233 “The deceleration interrupt time”
Parameter
Factory Setting
Setting Range
Remarks
229
0
0~2
0 The function is invalid.
1
The backlash compensation function is
selected.
2
The acceleration/deceleration interrupted
for waiting function is selected
230
1Hz
0~650Hz
---
231
0.5s
0~360s
---
232
1Hz
0~650Hz
---
233
0.5s
0~360s
---
● Backlash countermeasures
What is the Backlash compensation?
Reduction gears have an engagement gap and have a dead zone between forward rotation and
reverse rotation. This dead zone is called backlash, and this gap disables the 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
