Delta Electronics VFD-E manual Fpid, S1, S2, S3, S4

Appendix D How to Use PLC Function

API

141

Mnemonic		Operands	Function
FPID	P	S1, S2, S3, S4	PID control for the AC motor drive

Type	Bit Devices					Word devices			Program Steps
OP	X	Y	M	K	H	KnX KnY KnM	T	C	D FPID, FPIDP: 9 steps
S1				*	*				*
S2				*	*				*
S3				*	*				*
S4				*	*				*

Operands:

S1: PID Set Point Selection(0-4), S2: Proportional gain P (0-100), S3: Integral Time I (0-10000), S4: Derivative control D (0-100)

Explanation:

1.This command FPID can control the PID parameters of the AC motor drive directly, including Pr.10.00 PID set point selection, Pr.10.02 Proportional gain (P), Pr.10.03

Integral time (I) and Pr.10.04 Derivative control (D)

Program Example:

1.Assume that when M0=ON, S1 is set to 0 (PID function is disabled), S2=0, S3=1 (unit: 0.01 seconds) and S4=1 (unit: 0.01 seconds).

2.Assume that when M1=ON, S1 is set to 0 (PID function is disabled), S2=1 (unit: 0.01), S3=0 and S4=0.

3.Assume that when M2=ON, S1 is set to 1(frequency is inputted by digital keypad), S2=1 (unit: 0.01), S3=0 and S4=0.

4.D1027: frequency command controlled by PID.

D-62 Revision June 2008, 04EE, SW--PW V1.11/CTL V2.11