On/Off Control; Hysteresis: Hys - Omron E5EX–H Manual

E5EX–H
Connected to Temperature Controller
Input
Temperature
sensor
Controller
*This wiring must be passed through the hole of the special current
transformer. The current transformer can be connected to the sen-
sor in any polarity
*Wire through the hole on the Current
Transformer. The Current Transformer and
the Temperature Controller can be con-
nected with wires without polarity.
Connected to heater.
Output
controller
Heater load
200VAC
*Current transformer
Connected to Temper-
ature Controller.

2. ON/OFF Control

When pin 1 on the operating mode selector (SW201) is set to the ON
position, the temperature setting range limit values, hysteresis,
heater current, and heater burnout alarm value can be set or
changed. Any of these parameters can be selected by pressing dis-
play key the required number of times as follows.
5l-l
Press a.
5l-h
Press a.
hys
Press a.
ct
Press a.
hb
Press a.
Of the above parameters, only the hysteresis, which is described
below, differs from the parameters for PID control. Refer to 1. PID
Control for details on other parameters.

Hysteresis: hys

The hysteresis value for the ON/OFF control action can be set in a
range from 0.0° to 999.9°C/°F while hy5 is displayed on the PV dis-
play. Use the up or down key to do this. The factory setting is
0.8°C/°F.
Reverse operation
(heating control)
Low temperature
Normal operation
(Cooling control)
Low temperature
E5EX–H
Lower-limit value of temper-
ature setting range
Upper-limit value of tem-
perature setting range
Hysteresis
Heater current
Heater burnout alarm
Hysteresis
SP High temperature
Hysteresis
SP High temperature
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