YASKAWA V1000 Series Technical Manual page 126

5.2 b: Setup
b5-04: Integral Limit Setting
n
Sets the maximum output possible from the integrator. Set as a percentage of the maximum frequency (E1-04).
No.
b5-04
Note: On some applications, especially those with rapidly varying loads, the output of the PID function may show a fair amount of oscillation. To suppress this oscillation, a limit
can be applied to the intrigue factor by programming b5-04.
b5-05: Derivative Time (D)
n
Adjust this parameter to increase the reponsiveness of the system.
No.
b5-05
Note: Try reducing this derivative time if overshoot occurs. Increase the derivative time to achieve stability faster even if overshoot occurs. Derivative control is disabled when this
value is set to 0.00.
b5-06: PID Output Limit
n
Sets the maximum output possible from the entire PID controller. Set as a percentage of the maximum frequency (E1-04).
No.
b5-06
b5-07: PID Offset Adjustment
n
Sets the amount of offset of the output of the PID controller. Set as a percentage of the maximum frequency. The offset is summed with the PID output.
No.
b5-07
b5-08: PID Primary Delay Time Constant
n
Sets the amount of time for the filter on 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 drives responsiveness.
b5-09: PID Output Level Selection
n
Normally, the output of the PID function causes an increase in motor speed whenever the measured feedback is below the setpoint. This is referred to as
"direct acting response." However, if b5-09 = "1: Reverse Output", the output of the PID function causes the motor to slow down when the feedback is
below the setpoint. This is referred to as "reverse acting response.
No.
b5-09
b5-10: PID Output Gain Setting
n
Applies a multiplier to the output of the PID function. Using the gain can be helpful when the PID function is used to trim the frequency reference.
Increasing b5-10 causes the PID function to have a greater regulating affect on the frequency reference.
No.
b5-10
b5-11: PID Output Reverse Selection
n
Determines whether reverse operation is allowed while using PID control (b5-01does not = 0) and the PID output goes negative.
126
Setpoint
Offset
Feedback
No Intregral
Parameter Name
Integral Limit Setting
Parameter Name
Derivative Time
Parameter Name
PID Output Limit
Parameter Name
PID Offset Adjustment
Parameter Name
PID Primary Delay Time Constant
Parameter Name
PID Output Level Selection
Parameter Name
PID Output Gain Setting
Setpoint
Feedback
TIME
With Intregral
Setting Range
0.0 to 100.0
Setting Range
0.00 to 10.00
Setting Range
Setting Range
Setting Range
0: Normal Output (direct acting)
1: Reverse Output (reverse acting)
Setting Range
0.00 to 25.00
YASKAWA ELECTRIC SIEP C710606 18A YASKAWA AC Drive – V1000 Technical Manual (Preliminary)
Zero
Offset with
Integral Action
TIME
0.0 to 100.0
-100.0 to 100.0
Setting Range
0.00 to 10.00
Default
100.0
Default
0.00
Default
100.0
Default
0.0
Default
0.00
Default
0
Default
1.00