Autonics TM Series - Temperature Control Methods

6 Parameter Settings and Functions
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6.3 Temperature control
6.3.1 Temperature control method
You can choose the type of temperature control method.
Setting
group
Preceding
condition
Parameter Setting range
Factory
default
Unit
Initial
Setting
Heating, Cooling
Control
Method
PID, ONOFF PID -
Heating and Cooling
PID-PID
PID-ONOFF
ONOFF-PID
ONOFF-ONOFF
PID-PID -
6.3.2 ON/OFF control
Controls the temperature by comparing PV(present value) with SV(setting value) and turning
power to the load on or off.
6.3.2.1 Hysteresis
An ON/OFF control feature is used to define the control output ON/OFF points. ON_Hysteresis
sets the output on point and OFF_Offset sets the off point.
Setting hysteresis too low can result in hunting induced by disturbance (noise, chattering, etc.).
To minimize hunting, set ON_Hysteresis and OFF_Offset values according to the heater or
cooler's capacity and thermal characteristics, control subject and sensor response
characteristics, installation conditions, and other defining factors.
Setting
group
Preceding
condition
Parameter Setting range
Factory
default
Unit
Control
Operation
Heating
&
Cooling
Heating
Heating_ON
Hysteresis
1 to 100(H)
0.1 to 100.0(L)
2
Digit
Heating_OFF
Offset
0 to 100(H)
0.0 to 100.0(L)
0
Cooling
Cooling_ON
Hysteresis
1 to 100(H)
0.1 to 100.0(L)
2
Cooling_OFF
Offset
0 to 100(H)
0.0 to 100.0(L)
0