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improve the control .This Process Control Card contains a very clever PID and Fuzzy algorithm to
achieve a very small overshoot and very quick response to the process if it is properly tuned.
4.3.1.1.4.2 Cool Only ON-OFF Control
ON-OFF control, P (PD) control and PID control can be used for cool control. Set OUT1 to
DIRT (direct action). The other functions for cool only ON-OFF control, cool only P(PD) control
and cool only PID control are same as Heat only ON-OFF Control except that the output variable
(and action ) for the cool control is inverse to the heat control, such as the following diagram
shows:
Figure 4-29.Cool Only ON-OFF Control
4.3.1.1.4.3 Heat Cool Control
The Heat-Cool Control can use one of 6 combinations of control modes. Setups of
Parameters for each control mode are shown in the following table.
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