4 Basic Operation
4 - 30
E5@C Digital Temperature Controllers User’s Manual (H174)
Individual PID constants can be manually set in the Proportional Band, Integral Time, and Derivative
Time parameters in the Adjustment Level.
Proportional Action
When PID constants I (integral time) and D (derivative time) are set to 0, control is executed
according to proportional action. As the default, the center value of the proportional band
becomes the set point.
Related parameter: Manual Reset Value (Adjustment Level)
4-9-4 Manual Setup
In this example, the Proportional Band parameter is set to 10.0, the Inte-
gral Time parameter to 250, and the Derivative Time parameter to 45.
Operating Procedure
• Setting the Proportional Band
1
Press the M Key several times in the Adjustment Level to
display the p (Proportional Band) parameter.
Adjustment Level
2
Press the U or D Key to set the value to 10.0.
The default settings are as follows:
• Temperature input (°C or °F): 8.0
• Analog input (%FS): 10.0
• Setting the Integral Time
1
Press the M Key several times in the Adjustment Level to
display the i (Integral Time) parameter.
Adjustment Level
2
Press the U or D Key to set the value to 250.
The default settings are as follows:
• Integral/Derivative Time Unit of 1 s: 233
• Integral/Derivative Time Unit of 0.1 s: 233.0
• Setting the Derivative Time
1
Press the M Key several times in the Adjustment Level to
display the d (Derivative Time) parameter.
Adjustment Level
2
Press the U or D Key to set the value to 45.
The default settings are as follows:
• Integral/Derivative Time Unit of 1 s: 40
• Integral/Derivative Time Unit of 0.1 s: 40.0
8.0
p
40
d
Derivative Time
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