n
b5-01: PID Function Setting
Enables or disables the PID operation and selects the PID operation mode.
No.
Parameter Name
Setting Range
Default
b5-01
PID Function Setting
0 to 8
0
Setting 0: PID disabled
Setting 1: Output frequency = PID output 1
The PID controller is enabled and the PID output builds the frequency reference. The PID input is D controlled.
Setting 2: Output frequency = PID output 2
The PID controller is enabled and the PID output builds the frequency reference. The PID feedback is D controlled.
Setting 3: Output frequency = frequency ref PID output 1
The PID controller is enabled and the PID output is added to the frequency reference. The PID input is D controlled.
Setting 4: Output frequency = frequency ref PID output 2
The PID controller is enabled and the PID output is added to the frequency reference. The PID feedback is D controlled.
Note:
Set values 5 to 8 when upgrading from a previous Yaskawa drive model (e.g., Varispeed F7).
Setting 5: Mode compatible with setting 1 of similar products from a previous product line
Setting 6: Mode compatible with setting 2 of similar products from a previous product line
Setting 7: Mode compatible with setting 3 of similar products from a previous product line
Setting 8: Mode compatible with setting 4 of similar products from a previous product line
n
b5-02: Proportional Gain Setting (P)
Sets the P gain applied to the PID input. Larger values will tend to reduce the error but may cause oscillations if set too high,
while lower values may allow too much offset between the setpoint and feedback.
No.
Name
Setting Range
Default
b5-02
Proportional Gain Setting (P)
0.00 to 25.00
2.00
n
b5-03: Integral Time Setting (I)
Sets the time constant used to calculate the integral of the PID input. The shorter the integral time set to b5-03, the faster the
offset will be eliminated. If the integral time is set too short, however, overshoot or oscillation may occur. To turn off the
integral time, set b5-03 to 0.00.
No.
Name
Setting Range
Default
b5-03
Integral Time Setting (I)
0.0 to 360.0 s
1.0 s
n
b5-04: Integral Limit Setting
Sets the maximum output possible from the integral block 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.
Program b5-04 to apply a limit to the integral output and suppress this oscillation.
n
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 improve the response but can cause instability, while shorter time settings reduce the overshoot but reduce
controller responsiveness. D control is disabled by setting b5-05 to zero seconds.
No.
Name
Setting Range
Default
b5-05
Derivative Time (D)
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 as a percentage of the maximum frequency (E1-04).
5.2 b: Application
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YASKAWA ELECTRIC SIEP C710636 04D U1000 Industrial MATRIX Drive Technical Manual
Summary of Contents for U1000 iQpump Drive
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