n
b5-04: Integral Limit Setting
Sets the maximum output possible from the integral block. Set as a percentage of the maximum frequency (E1-04).
No.
Name
Setting Range
Default
b5-04
Integral Limit Setting
0.0 to 100.0
100.0
Note:
On some applications, especially those with rapidly varying loads, the output of the PID function may show a fair amount of oscillation.
To suppress this oscillation, a limit can be applied to the integral output by programming b5-04.
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b5-05: Derivative Time (D)
Sets the time the drive predicts the PID input/PID feedback signal based on the derivative of the PID input/PID feedback.
Longer time settings will improve the response but can cause vibrations. Shorter settings will reduce the overshoot but also
reduce the controller responsiveness. D control is disabled by setting b5-05 to zero seconds.
No.
Name
Setting Range
Default
b5-05
Derivative Time
0.00 to 10.00 s
0.00 s
n
b5-06: PID Output Limit
Sets the maximum output possible from the entire PID controller. Set as a percentage of the maximum frequency (E1-04).
No.
Name
Setting Range
Default
b5-06
PID Output Limit
0.0 to 100.0%
100.0%
n
b5-07: PID Offset Adjustment
Sets the offset added to the PID controller output. Set as a percentage of the maximum frequency.
No.
Name
Setting Range
Default
b5-07
PID Offset Adjustment
-100.0 to 100.0%
0.0%
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b5-08: PID Primary Delay Time Constant
Sets the time constant for the filter applied to the output of the PID controller. Normally, change is not required.
No.
Name
Setting Range
Default
b5-08
PID Primary Delay Time Constant
0.00 to 10.00 s
0.00 s
Note:
Effective in preventing oscillation when there is a fair amount of oscillation or when rigidity is low. Set to a value larger than the cycle of
the resonant frequency. Increasing this time constant reduces the responsiveness of the drive.
n
b5-09: PID Output Level Selection
Normally, the output of the PID function increase whenever the PID input is negative (feedback below setpoint). Using b5-09
the PID controller can be set up for applications that require opposite operation.
No.
Parameter Name
Setting Range
Default
b5-09
PID Output Level Selection
0 or 1
0
Setting 0: Normal Output
A negative PID input causes an increase in the PID output (direct acting).
Setting 1: Reverse Output
A negative PID input causes a decrease in the PID output (reverse acting).
n
b5-10: PID Output Gain Setting
Applies a gain to the PID output and can be helpful when the PID function is used to trim the frequency reference (b5-01 = 3
or 4). Increasing b5-10 causes the PID function to have a greater regulating effect on the frequency reference.
No.
Name
Setting Range
Default
b5-10
PID Output Gain Setting
0.00 to 25.00
1.00
n
b5-11: PID Output Reverse Selection
Determines whether a negative PID output reverses the drive operation direction or not. When the PID function is used to trim
the frequency reference (b5-01 = 3 or 4), this parameter has no effect and the PID output will not be limited (same as
5.2 b: Application
134
YASKAWA
TOEP YAIQPM 03B YASKAWA AC Drive - iQpump Micro User Manual
Содержание iQpump Micro CIMR-PW Series
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