User Manual

140
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 138
PID ON/OFF (initial setting level): Page 149
This parameter sets the hysteresis for ensuring stable operation at the ON/
OFF switching point.
• For standard control, use the “hysteresis (heating)” parameter. The “hys-
teresis (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 149
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)” param-
eter, the control must be heating/
cooling control.
chys Hysteresis (Cooling)
Function
Setting
Parameters Model Setting range Unit Default
Hysteresis
(heating)
Controllers with Thermocouple/Resistance
Thermometer Multi-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 Multi-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