Omron E5AN User Manual

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Shifting Input Values Section 4-1
Two-point shift
• Separate shift values can be set for the upper limit and lower limit of the
sensor input range for an infrared sensor as well as for a thermocouple or
platinum resistance thermometer with the Input Shift Type parameter set
to INS2. If different shift values are set for the upper limit and lower limit,
then the slope of the line will be different before and after applying the
input shift. For example, if the upper-limit value is set to 2°C and the
lower-limit value is set to 1°C, the input temperature will be shifted by
1.5°C for a 50% input, i.e., by the average of the upper-limit and lower-
limit values.
• Set the upper-limit value in the Upper-limit Temperature Input Shift Value
parameter and the lower-limit value in the Lower-limit Temperature Input
Shift Value parameter.
4-1-2 How to Calculate Input Shift Values for a 2-point Shift
When an ES1B Infrared Temperature Sensor is connected to the E5CN, an
offset of several degrees to several tens of a degree can occur.
For this reason, offset the readout value using a 1-point or 2-point shift as
described in this section. This offset occurs because a bias current for detect-
ing a Controller sensor error flows to the output impedance of the infrared
temperature sensor.
Preparations
1,2,3... 1. Set a temperature range matching the input specifications of the infrared
temperature sensor. (The ES1B can be used with the E5@N only for a ther-
mocouple/resistance thermometer universal input.)
2. Prepare a thermometer capable of measuring the temperature of the con-
trol target as shown in Figure 1 so that a 1-point shift or 2-point shift can
be carried out.
3. The E53-CN@@P@N2 (for E5CN), E5AN-@@P@-N, or E5EN-@@P@-N
has a built-in external power supply for ES1B Infrared Temperature Sen-
sors. These E5CN models can be used as the power supply when using
ES1B. When ES1B are used with other E5CN models, provide a separate
power supply for the Infrared Temperature Sensors.
insh
insl
Upper-limit
Temperature
Input Shift Value
Lower-limit
Temperature
Input Shift Value
0
100
Temperature
Upper limit
Lower limit
Before shifting
After shifting
Input
Upper-limit temperature
input shift value
Lower-limit temperature
input shift value

Omron E5AN Specifications

General

Brand	Omron
Model	E5AN
Category	Temperature Controller
Language	English