AC Motor Drive User Manual

Chapter 4 Parameters|
4-132 Revision June 2008, 04EE, SW--PW V1.11/CTL V2.11
Group 10: PID Control
10.00
PID Set Point Selection
Factory Setting: 0
Settings 0 Disable
1 Digital keypad UP/DOWN keys
2 AVI 0 ~ +10VDC
3 ACI 4 ~ 20mA / AVI2 0 ~ +10VDC
4 PID set point (Pr.10.11)
10.01 Input Terminal for PID Feedback
Factory Setting: 0
Settings 0 Positive PID feedback from external terminal AVI (0 ~ +10VDC).
1 Negative PID feedback from external terminal AVI (0 ~ +10VDC).
2 Positive PID feedback from external terminal ACI (4 ~ 20mA)/ AVI2
(0 ~ +10VDC).
3 Negative PID feedback from external terminal ACI (4 ~ 20mA)/
AVI2 (0 ~ +10VDC).
 Note that the measured variable (feedback) controls the output frequency (Hz). Select input
terminal accordingly. Make sure this parameter setting does not conflict with the setting for
Pr.10.00 (Master Frequency).
 When Pr.10.00 is set to 2 or 3, the set point (Master Frequency) for PID control is obtained
from the AVI or ACI/AVI2 external terminal (0 to +10V or 4-20mA) or from multi-step speed.
When Pr.10.00 is set to 1, the set point is obtained from the keypad.
 Negative feedback means: +target value – feedback
Positive feedback means: -target value + feedback.
10.02 Proportional Gain (P) Unit: 0. 1
Settings 0.0 to 10.0 Factory Setting: 1.0
 This parameter specifies proportional control and associated gain (P). If the other two gains (I
and D) are set to zero, proportional control is the only one effective. With 10% deviation (error)
and P=1, the output will be P x10% x Master Frequency.