YASKAWA OYMC V1000

1.2 b: Application
YASKAWA ELECTRIC SIEP C710606 10A YASKAWA AC Drive - V1000 PRELIM. Programming Manual 65
Parameter Details
1
Figure 1.20
Figure 1.20 Offset Elimination by Integral Operation
■ b5-04: Integral Limit Setting
Sets the maximum output possible from the integral block. Set as a percentage of the
maximum frequency (E1-04).
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
integral output by programming b5-04.
■ b5-05: Derivative Time (D)
Sets the time the drive predicts the PID input/ PID feedback signal based on the derivative of
the PID input/ PID feedback. Longer time settings will improve the response but can cause
vibrations. Shorter settings will reduce the overshoot but also reduce the controller
responsiveness. D control is disabled by setting b5-05 to zero seconds.
■ 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. Name Setting Range Default
b5-04 Integral Limit Setting 0.0 to 100.0 100.0
No. Name Setting Range Default
b5-05 Derivative Time 0.00 to 10.00 s 0.00 s
No. Name Setting Range Default
b5-06 PID Output Limit 0.0 to 100.0% 100.0%
Zero
offset with
integral action
No Intregral
With Intregral
PID
feedback
Setpoint
Offset
Setpoint
Feedback
Feedback
Time
Time