12.3 b: Application
532 YASKAWA SIEPC71061753C GA500 Technical Manual
■ b5-07: PID Offset Adjustment
No.
(Hex.)
Name Description
Default
(Range)
b5-07
(01AB)
RUN
PID Offset Adjustment
Sets the offset for the PID control output as a percentage of the Maximum Output Frequency.
0.0%
(-100.0 - +100.0%)
■ b5-08: PID Primary Delay Time Constant
No.
(Hex.)
Name Description
Default
(Range)
b5-08
(01AC)
RUN
Expert
PID Primary Delay Time
Constant
Sets the primary delay time constant for the PID control output. Usually it is not necessary to
change this setting.
0.00 s
(0.00 - 10.00 s)
Prevents resonance if there is a large quantity of mechanical friction or if rigidity is unsatisfactory. Set the value
larger than the resonant frequency cycle. A value that is too large will decrease drive responsiveness.
■ b5-09: PID Output Level Selection
No.
(Hex.)
Name Description
Default
(Range)
b5-09
(01AD)
PID Output Level Selection
Sets the polarity of the PID output.
0
(0, 1)
Use this parameter in applications that decrease the drive output frequency when you increase the PID setpoint.
0 : Normal Output (Direct Acting)
A positive PID input increases the PID output (direct acting).
1 : Reverse Output (Reverse Acting)
A positive PID input decreases the PID output (reverse acting).
■ b5-10: PID Output Gain Setting
No.
(Hex.)
Name Description
Default
(Range)
b5-10
(01AE)
RUN
PID Output Gain Setting
Sets the amount of gain to apply to the PID output.
1.00
(0.00 - 25.00)
Applies a gain to the PID output and can help when b5-01 = 3 or 4 [PID Mode Setting = Fref + PID Trim, Fref +
PID Trim (D on feedback)].
■ b5-11: PID Output Reverse Selection
No.
(Hex.)
Name Description
Default
(Range)
b5-11
(01AF)
PID Output Reverse
Selection
Sets the function that enables and disables reverse motor rotation for negative PID control output.
0
(0, 1)
This parameter is disabled when b5-01 = 3, 4 [PID Mode Setting = Fref + PID Trim, Fref + PID Trim (D on
feedback)]. There is no limit for PID output (PID output can be positive or negative). Operates the same as setting
“1: Enabled: Negative lower limit”.
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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