Omron E5AN-H User Manual

58
Using ON/OFF Control Section 3-7
Hysteresis • With ON/OFF control, hysteresis is used to stabilize operation when
switching between ON and OFF. The control output (heating) and control
output (cooling) functions are set in the Hysteresis (Heating) and Hystere-
sis (Cooling) parameters, respectively.
• In standard control (heating or cooling control), the setting of the Hystere-
sis (Heating) parameter in the adjustment level is used as the hysteresis
regardless of whether the control type is heating control or cooling con-
trol.
Three-position
Control
• In heating/cooling control, a dead band (an area where both control out-
puts are 0) can be set to either the heating or cooling side. This makes it
possible to use 3-position control.
Parameters
3-7-2 Settings
To execute ON/OFF control, set the Set Point, PID ON/OFF, and Hysteresis
parameters.
Setting the PID ON/OFF Parameter
Operating Procedure The following example shows how to change the PID ON/OFF parameter to
onof in the initial setting level.
PV
ON
OFF
Reverse operation
Hysteresis (heating)
Set
p
oint
Symbol Parameter: level Application
s-hc
cntl
orev
c-db
hys
chys
Standard or Heating/Cooling: Initial setting level
PID ON/OFF: Initial setting level
Direct/Reverse Operation: Initial setting level
Dead Band: Adjustment level
Hysteresis (Heating): Adjustment level
Hysteresis (Cooling): Adjustment level
Specifying control method
Specifying control method
Specifying control method
Heating/cooling control
ON/OFF control
ON/OFF control
PV
ON
OFF
Reverse operation
Dead band
Hysteresis (heating) Hysteresis (cooling)
Heating
side
Cooling
side
Set point
Operation Level
1. Press the O Key for at least three seconds to move from the operation
level to the initial setting level.
C
25.0
100.0
P
V

Omron E5AN-H Specifications

General

Brand	Omron
Model	E5AN-H
Category	Temperature Controller
Language	English