Autonics TK Series - ON;OFF Control [PAR3 → C-MD → ONOF]

6 Parameter Settings and Functions
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6.3.2 ON/OFF control [PAR3 → C-MD → ONOF]
Controls the temperature by comparing present value (PV) with set value(SV) and turning power
to the load on or off.
6.3.2.1 Hysteresis [PAR2 → hHYS/hOFT/cHYS/cOFT]
Hysteresis is to adjust control output ON/OFF point in ON/OFF control mode. 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 with consideration to the heater
or cooler's capacity and thermal characteristics, the control subject's response characteristics,
the sensor's response characteristics and installation conditions, and other defining factors.
Parameter
Description
hHYS Configures ON_Hysteresis for heating control.
hOFT
Configures OFF_Offset for heating control.
cHYS Sets ON_Hysteresis for cooling control.
cOFT
Sets OFF_Offset for cooling control.
Setting
group
Parameter Setting range
Factory
default
Unit
PAR2
hHYS
Temperature H, Analog: 001 to100
Temperature L: 0)1 to1)0
002
℃/℉/-
cHYS
hOFT
Temperature H, Analog: 001 to100
Temperature L: 0)1 to1)0
000
cOFT