YASKAWA V1000 Technical Manual page 135

No.
b5-05
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.
b5-06
n
b5-07: PID Offset Adjustment
Sets the offset added to the PID controller output. Set as a percentage of the maximum frequency.
No.
b5-07
n 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.
b5-08
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.
b5-09
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.
b5-10
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
b5-11 = 1).
No.
b5-11
Setting 0: Reverse Disabled
Negative PID output will be limited to 0 and the drive output will be stopped.
Setting 1: Reverse Enabled
Negative PID output will cause the drive to run in the opposite direction.
n PID Feedback Loss Detection
The PID Feedback Loss Detection function can detect broken sensors or broken sensor wiring. It should be used whenever
PID control is enabled to prevent critical machine conditions (e.g. acceleration to max. frequency) caused by a feedback
loss.
Feedback loss can be detected in two ways:
• Feedback Low Detection:
YASKAWA ELECTRIC SIEP C710606 16C YASKAWA AC Drive – V1000 Technical Manual
Name
Derivative Time
Name
PID Output Limit
Name
PID Offset Adjustment
Name
PID Primary Delay Time Constant
Parameter Name
PID Output Level Selection
Name
PID Output Gain Setting
Parameter Name
PID Output Reverse Selection
5.2 b: Application
Setting Range
0.00 to 10.00 s
Setting Range
0.0 to 100.0%
Setting Range
-100.0 to 100.0%
Setting Range
0.00 to 10.00 s
Setting Range
0 or 1
Setting Range
0.00 to 25.00
Setting Range
0 or 1
Default
0.00 s
Default
100.0%
Default
0.0%
Default
0.00 s
Default
0
Default
1.00
5
Default
0
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