YASKAWA GA800 Technical Reference page 750

12.3 b: Application
Enables PID control. The drive performs D control on the feedback output via U5-06 [PID Fdbk-Diff PID Fdbk].
3 : Fref + PID Trim
Enables PID control. The drive adds the frequency reference to the PID output. The drive performs D control on the
difference between the feedback value and the PID setpoint output via U5-02 [PID Input].
4 : Fref + PID Trim (D on feedback)
Enables PID control. The drive adds the frequency reference to the PID output. The drive performs D control on the
feedback output via U5-06 [PID Fdbk-Diff PID Fdbk].
5 : Same as 7series & prior, b5-01=1
6 : Same as 7series & prior, b5-01=2
7 : Same as 7series & prior, b5-01=3
8 : Same as 7series & prior, b5-01=4
Note:
Use settings 5 to 8 when the drive is a replacement for a previous generation drive.
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b5-02: Proportional Gain (P)
No.
Name
(Hex.)
b5-02 Proportional Gain (P)
(01A6)
RUN
Larger values decrease errors, but can cause oscillations. Smaller values let too much offset between the setpoint and
feedback.
Set b5-02 = 0.00 to disable P control.
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b5-03: Integral Time (I)
No.
Name
(Hex.)
b5-03 Integral Time (I)
(01A7)
RUN
Set a short integral time in b5-03 to remove the offset more quickly. If the integral time is too short, overshoot or
oscillation can occur.
Set b5-03 = 0.00 to disable I control.
■
b5-04: Integral Limit
No.
Name
(Hex.)
b5-04 Integral Limit
(01A8)
RUN
750
V/f CL-V/f OLV CLV AOLV
Sets the proportional gain (P) that is applied to PID input.
V/f CL-V/f OLV CLV AOLV
Sets the integral time (I) that is applied to PID input.
Figure 12.39 Integral Time and Deviation
V/f CL-V/f OLV CLV AOLV
Sets the upper limit for integral control (I) as a percentage of the Maximum Output Frequency.
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
YASKAWA SIEPC71061737D GA800 Drive Technical Reference
Default
(Range)
1.00
(0.00 - 25.00)
Default
(Range)
1.0 s
(0.0 - 360.0 s)
Default
(Range)
100.0%
(0.0 - 100.0%)