Shihlin electric SC3 Series User Manual

Application parameter group 10
PARAMETER DESCRIPTION 151
5.10.9 Dwell function V/F
 During acceleration /deceleration, this function can solve the backlash problem caused by stopping acceleration
/deceleration, through frequency and time set by this parameters.
Parameter
Name
Default
Setting Range
Content
10-18
P.229
Dwell function
selection
0
0
None.
1
Backlash compensation function.
2
Stop acceleration and deceleration waiting function.
10-19
P.230
Dwell frequency at
acceleration
1.00Hz
0～650.00Hz
Set the stopping frequency and time of Dwell function during
acceleration.
10-20
P.231
Dwell time at
acceleration
0.5s
0～360.0s
10-21
P.232
Dwell frequency at
deceleration
1.00Hz
0～650.00Hz
Set the stopping frequency and time of Dwell function during
deceleration.
10-22
P.233
Dwell time at
deceleration
0.5s
0～360.0s
Dwell function
 Backlash compensation（10-18(P.229)=1）
The gears of the reducer have biting backlash, and there is an empty section between forward and reverse
rotation. This unloaded segment is called backlash, and even if the motor rotates, it will not produce a mechanical
following state.
Specifically, when switching the direction of rotation and changing from constant speed operation to deceleration
operation, the motor shaft generates excessive torque, and the motor current rapidly increases or becomes a
regenerative state.
To avoid backlash, the acceleration and deceleration are temporarily interrupted during acceleration and
deceleration. The frequency and time of interrupting acceleration and deceleration are set by 10-18 (P.229) ~
10-22 (P.233).
As shown in the following diagram:
10-20
P.231
10-19
P.230
10-21
P.232
10-22
P.233
01-11
P.13
Time
Output
frequency
Backlash compensation function
Note: After setting backlash compensation, only the interruption time in acceleration and deceleration time will
become longer.
Setting

Shihlin electric SC3 Series Specifications

General

Brand	Shihlin electric
Model	SC3 Series
Category	Inverter
Language	English