Omron E5AR - MANUAL 2 User Manual

Section 3 Typical Control Examples
3-20
Typical Control
Examples
The following explains how to configure the control mode, straight-line
approximation 1 and 2 settings, and the ratio setting. It is assumed that
the input 1 and input 2 type settings and the scaling setting have
already been configured.
Ratio control is achieved by multiplying input 2 (which serves as a
reference) by the proportion and using the result as remote SP.
Set the SP mode to remote SP.
Straight-line approximation 1
First, to make the units of input 2 match the units of input 1, input 2 is
converted from normalized data to an industrial quantity using straight-
line approximation 1.
Convert 0.000 - 1.000 to 0 - 5.000.
Straight-line approximation 1 input 1 = 0.000
Straight-line approximation 1 input 2 = 1.000
Straight-line approximation 1 output 1 = 0.000
Straight-line approximation 1 output 2 = 5.000
This result is multiplied by the proportion.
Ratio setting (AP1) = 0.05
Straight-line approximation 2 is then used to convert this result from an
industrial quantity to normalized data.
Straight-line approximation 2 input 1 = 0.000
Straight-line approximation 2 input 1 = 0.250
Straight-line approximation 2 input 1 = 0.000
Straight-line approximation 2 input 1 = 1.000
When the ratio setting (AP1) is 0.05 and the measured value of input 2
is 240.0 kg/s, control of the dye takes place using an SP of 12.0 kg/s.
IN2
Straight-line
approximation 1
×
AP1
Straight-line approximation 2
IN1
RSP
Local SP
(LSP)
PV
+
-
SP
Channel 1
PID*
Remote SP
Local SP
MV
OUT1
Straight-line approximation 1
Output
Input
0.0
5.0
0.0 1.0
Straight-line approximation 2
Output
Input
0.0
1.0
0.0 0.25
12.0
12.0
30.0
RUN level
Present value
(
PV
)
/ SP /
MV
RSP

Omron E5AR - MANUAL 2 Specifications

General

Brand	Omron
Model	E5AR - MANUAL 2
Category	Controller
Language	English