174
Adjustment Level Section 5-4
• This parameter sets the required manipulated variable to remove offset
during stabilization of P or PD control.
■ Related Parameters
Integral time (adjustment level): Page 172
PID ON/OFF (initial setting level): Page 188
This parameter sets the hysteresis for ensuring stable operation at the ON/
OFF switching point.
• For standard control, use the Hysteresis (Heating) parameter. The Hyster-
esis (Cooling) parameter cannot be used.
• For heating/cooling control, the hysteresis can be set independently for
heating/cooling. The Hysteresis (Heating) parameter is used for the heat-
ing side, and the Hysteresis (Cooling) parameter is used for the cooling
side.
Note Set “None” as the unit for Controllers with Analog Inputs.
■ Related Parameters
PID ON/OFF, Standard or heating/cooling (initial setting level): Page 188
of-r Manual Reset Value
The control must be standard control
and 2-PID control.
The Integral Time parameter must be
set to 0.
Setting range Unit Default
0.0 to 100.0 % 50.0
Function
Setting
See
See
hys Hysteresis (Heating)
The control must be ON/OFF control.
For the Hysteresis (Cooling) parame-
ter, the control must be heating/cool-
ing control.
chys Hysteresis (Cooling)
Function
Setting
Parameter
name
Model Setting range Unit Default
Hysteresis
(Heating)
Controllers with Thermocouple/Resistance
Thermometer Universal Inputs
0.1 to 999.9 °C or °F
(See note.)
1.0
Controllers with Analog Inputs 0.01 to 99.99 %FS 0.10
Hysteresis
(Cooling)
Controllers with Thermocouple/Resistance
Thermometer Universal Inputs
0.1 to 999.9 °C or °F
(See note.)
1.0
Controllers with Analog Inputs 0.01 o 99.99 %FS 0.10
See
See
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