AC Motor Drive User Manual

Appendix D How to Use PLC Function|

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

API Mnemonic Operands Function

141

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

Bit Devices Word devices Program Steps Type

X Y M K H KnX KnY KnM T C D

* *

FPID, FPIDP: 9 steps

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.