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Using ON/OFF Control Section 3-7
3-7-2 Settings
To execute ON/OFF control, set the “set point,” “PID ON/OFF” and “hystere-
sis” parameters.
Setting the PID ON/OFF parameter
In this example, let’s first check that the “PID ON/OFF” parameter is set to
“onof” in the “initial setting level”.
1,2,3... 1. Press the key for at least three seconds to move from the “operation
level” to the “initial setting level”.
2. Display the “input type” parameter in the initial setting level.
3. Select the “PID ON/OFF” parameter by pressing the key.
4. Check that the set value is “onof” (default).
5. Press the key for at least 1 second to return to the “operation level”.
SP Setting
Next, set the set point value.
In this example, the set point is set to 200. The set value (i.e., the SP) is
shown at the bottom of the display.
1,2,3... 1. In the operation level, select “PV/SP”.
2. Use the key to set the SP value (for example: 200). After pressing
the key or waiting for at least two seconds, this value will be fixed.
Operation Procedure
P
Operation level
25
100
C
Input type
Initial setting level
in-t
5
PID ON/OFF
cntl
onof
Operation Procedure
PV/S
Operation level
25
100
C
25
200
C