Delta Electronics VFD-E manual Group 10 PID Control, 10.02

Chapter 4 Parameters

Group 10: PID Control

10.00PID Set Point Selection

Factory Setting: 0

Settings 0 Disable

1Digital keypad UP/DOWN keys

2AVI 0 ~ +10VDC

3ACI 4 ~ 20mA / AVI2 0 ~ +10VDC

4PID set point (Pr.10.11)

10.01Input Terminal for PID Feedback

		Factory Setting: 0
Settings	0	Positive PID feedback from external terminal AVI (0 ~ +10VDC).

1Negative PID feedback from external terminal AVI (0 ~ +10VDC).

2Positive PID feedback from external terminal ACI (4 ~ 20mA)/ AVI2 (0 ~ +10VDC).

3Negative 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.

4-132 Revision June 2008, 04EE, SW--PW V1.11/CTL V2.11