YASKAWA L1000A Quick Start Manual page 101

S3-35: Anti-Rollback Torque Bias 2
■
Sets a maximum value for the torque bias used for Anti-Rollback when Position Lock at start is performed. This setting
rarely needs to be changed.
No.
S3-35
■ S3-37: Position Deviation Level to Apply Anti-Rollback Torque Bias 1
Sets the position deviation level to activate at Anti-Rollback Torque Bias 1 (S3-34). This setting rarely needs to be
changed.
No.
S3-37 Position Deviation Level to Apply Anti-Rollback Torque Bias 1
S3-38: Position Deviation Level to Apply Anti-Rollback Torque Bias 2
■
Determines the position deviation level when the drive should switch from the Anti-Rollback torque bias set in S3-34 to
the torque bias set in S3-35. This setting rarely needs to be changed.
No.
S3-38 Position Deviation Level to Apply Anti-Rollback Torque Bias 2
S3-39: Anti-Rollback Integral Gain
■
Determines the drive responsiveness for Anti-Rollback during Position Lock.
Increasing the value set to S3-39 may help if there is still too much deviation from the Position Lock start position after
Position Lock gain 1 and gain 2 have already been adjusted. Lower S3-39 if oscillation occurs. This parameter rarely
needs to be changed.
No.
S3-39
■ S3-40: Anti-Rollback Movement Detection
Sets the amount of speed feedback signal pulses to detect a movement of the rotor.
No.
S3-40
S3-41: Position Lock Gain at Start 2 Reduction
■
Sets a reduction factor for the Position Lock Gain at Start 2 (Anti Rollback Gain) set in parameter S3-02.
If the motor rotation (i.e., car movement) is below the movement detection level set to S3-40, the drive will reduce the
Anti-Rollback gain according to the gain reduction level set in S3-41.
No.
S3-41
YASKAWA ELECTRIC TOEP C710616 38H YASKAWA AC Drive-L1000A Quick Start Guide
Parameter Name
Anti-Rollback Torque Bias 2
Parameter Name
Parameter Name
Parameter Name
Anti-Rollback Integral Gain
Parameter Name
Anti-Rollback Movement Detection
Parameter Name
Position Lock Gain at Start 2 Reduction
4 Start-Up Programming & Operation
Setting Range
0.0 to 100.0%
Setting Range
0 to 32767
Setting Range
0 to 32767
Setting Range
-30.00 to 30.00
Setting Range
0 to 100 pulses
Setting Range
0.00 to 1.00
Default
0.0%
Default
0
Default
0
Default
0.00
Default
1 pulse
4
Default
0.50
99