Dancer feedback speed control details
83
3
Fine adjustment after tension PI gain tuning
• If fine adjustment is required after completion of tension PI gain tuning, adjust the proportional band (
Pr.129
), integral time
(
Pr.130
), and differential time (
Pr.134
).
NOTE
• During the differential operation is used, adjust the differential time (
Pr.134
) while checking the stability and the response
level. (Increasing the differential time makes the differential effect larger, and decreasing the differential time makes the
differential effect smaller.)
Status of measurement values
Adjustment method
The response is fast, but vibrations are observed.
• Increase the proportional band (
Pr.129
). (Smaller
proportional effect)
• Increase the integral time (
Pr.130
). (Smaller integral effect)
Optimal
—
Response is slow.
• Decrease the proportional band (
Pr.129
). (Larger
proportional effect)
• Decrease the integral time (
Pr.130
). (Larger integral effect)
Time
Measured value (%)
Set point (%)
Time
Measured value (%)
Set point (%)
Time
Measured value (%)
Set point (%)
Summary of Contents for A800 Plus Series
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