BENSHAW RSi SG Series, Instruction Manual

Page: 169 / 218

Chapter 6 – Parameter Description [APP]
6-81
APP-02 , APP-80 (Dual PID operation)
ExtPID can be used in the following three cases; 1) controlling another system independently like an external PID
controller 2) using both PID controller in APP-02 and External PID controller 3) using ExtPID output as a drive
target frequency.
Case 1: Dual PID block diagram
Ext.PID Parameter
DRV-20
APP-
80
Ext. PI mode
Ext.PID
K
f
Limit
APP-88
Ext. PID High Limit
Freq.
proc PI dis
APP-90
Gain
APP-89
Ext. PID Low LImit
Freq.
I/O-20~27
Multi-function Input
Terminal Setting
(M1~M8)
Ext. PID Output
Gain
Ext. PID F Gain:
Feed Foward
Ext. PID Ref Setting
Zero
APP-93
APP-81
I/O-20~27
Multi-function Input
Terminal Setting
(M1~M8)
APP-83
Ext. PID Run
Zer
o
APP-82
Ext. Ref Perc
S0, S1 Mode
I/O-70,-
72
Analog Meter Output
Setting
Ext. Fbk Sel
V1 1
Keypad 3
Ext. Ref Sel
For Connection to
External Controller
(Other System)
This illustrates controlling another system independently. Set I/O-70 or 72 [S0/S1 mode] to “Ext PID Out” and
connect external system to S0 or S1 terminal. When Ext.PID Run signal is ON at the defined terminal in I/O-20~27,
it starts its output.