YASKAWA HV600 Technical Reference page 217

A positive PID input decreases the PID output (reverse acting).
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b5-10: PID Output Gain Setting
No.
Name
(Hex.)
b5-10 PID Output Gain Setting
(01AE)
RUN
Applies a gain to the PID output and can help when b5-01 = 3 [PID Mode Setting = Fref + PID Trim].
■
b5-11: PID Output Reverse Selection
No.
Name
(Hex.)
b5-11 PID Output Reverse
Selection
(01AF)
When b5-01 = 3 [PID Mode Setting = Fref + PID Trim], this parameter is disabled. There is no limit for PID output.
The drive will operate the same as setting 1 [Negative Output Accepted].
0 : Lower Limit is Zero
When PID output is negative, PID output is limited to 0 and drive output is shut off.
1 : Negative Output Accepted
When the PID output is negative, the motor will rotate in reverse. When b1-04 = 1 [Reverse Operation Selection =
Reverse Disabled], the lower limit is 0.
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b5-17: PID Accel/Decel Time
No.
Name
(Hex.)
b5-17 PID Accel/Decel Time
(01B5)
RUN
The drive usually uses the acceleration and deceleration times set in C1-xx [Accel and Decel Times], but when PID
control is enabled, the drive applies C1-xx after PID output. If you frequently change the PID setpoint, the drive
responsiveness decreases. When resonance with PID control causes hunting, overshoot, or undershoot, set b5-17 for
longer acceleration and deceleration times.
Decrease C1-xx until hunting stops, then use b5-17 to check the acceleration and deceleration. To enable and disable
the setting in b5-17 through an MFDI terminal, set PID Soft Starter Disable [H1-xx = 34].
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b5-28: PID Feedback Square Root Sel
No.
Name
(Hex.)
b5-28 PID Feedback Square Root
Sel
(01EA)
0 : Disabled
1 : Enabled
■
b5-29: PID Feedback Square Root Gain
No.
Name
(Hex.)
b5-29 PID Feedback Square Root
Gain
(01EB)
YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference
Sets the amount of gain to apply to the PID output.
Sets the function that enables and disables reverse motor rotation for negative PID control output.
Raises or lowers the PID setpoint using the acceleration and deceleration times set to the drive. This
is a soft-starter for the PID setpoint.
Enables and disables the square root of the PID Feedback compared to the PID Setpoint to set an
appropriate drive output for the correct system regulation.
Sets the multiplier applied to the square root of the feedback.
Description
Description
Description
Description
Description
5.2 b: Application
Default
(Range)
1.00
(0.00 - 25.00)
Default
(Range)
0
(0, 1)
Default
(Range)
0.0 s
(0.0 - 6000.0 s)
5
Default
(Range)
0
(0, 1)
Default
(Range)
0.00
(0.00 - 2.00)
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