Contents

•ASR Gain and Integral Time Adjustments
There are three sets of ASR gain and bias, one for the maximum speed (C5-01/02), one the minimum speed
for acceleration (C5-03/04) and one for the minimum speed for deceleration (C5-09/10) (see the figure
ASR P,I
ASR P,I
C5-01 ASR Gain 1
C5-02 ASR I Time 1
C5-09 ASR Gain 3
C5-10 ASR I Time 3
C5-03 ASR Gain2
C5-04 ASR I time 2
C5-03 ASR Gain2
C5-04 ASR I time 2
0Hz
C5-07 E1-04 0Hz
C5-07 E1-04
Speed(Hz)
Speed(Hz)
During Acceleration
During Deceleration
below).
Adjusting ASR Proportional Gains (C5-01/03/09)
This gain adjusts the responsiveness of the speed control (ASR). The responsiveness of the ASR is increased
when this setting is increased. Oscillation will occur if this setting is increased too much.
• Increase C5-01 if the ASR is too slow at start or very low frequencies, decrease it if vibrations occur.
• Increase C5-03 if the ASR is too slow at high speed or if overshooting occurs at speed changes in the high
speed area, decrease it if vibrations occur
• Increase C5-09 if ASR is slow in the low speed area or if undershooting occurs at leveling speed. If vibrations
occur in the low speed area during deceleration decrease the value.
Adjusting ASR Integral Times (C5-02/04/10)
This parameter sets the speed control (ASR) integral time. Lengthening the integral time lowers the responsiveness
and the speed accuracy when the load changes suddenly. Oscillation and overshooting can occur if
this setting value is too low.
• Decrease C5-02 if a speed deviation is compensated too slow at start or at very low frequencies, increase it
if vibrations occur.
• Decrease C5-04 if a speed deviation is compensated too slow at high speeds or if overshooting occurs at
speed changes in the high speed area, increase it if vibrations occur.
• Decrease C5-10 if a speed deviation is compensated too slow in the low speed area or if undershooting
occurs at leveling speed. If vibrations occur in the low speed area during deceleration increase the value.
5-30