DVP02TK-S/DVP02TU-S Temperature Control Module Manual
2-24
SV
ON
OFF
PV
Dead band
Cooli ng
Cooling sensitivity
adj ustment
Heating
Heating sensitivity
adjustm ent
2.6 PID Control Mode
When the PV is in the range of ERR_DBW, the PLC will run the PID operation according to the E value. When the PV is
over the SV, the cross status will be established and the E value will be seen as 0 while running the PID operation until
the PV goes over the range of ERR_DBW. If PID_DE is True, the PLC will run the derivative of PV. When the cross
status is established, the Delta PV will be seen as 0 while running the derivative of PID operation. As the example shown
below, the PLC will run the PID operation in the section A and will see the values of E and Delta PV as 0 while running
the PID operation.
PID Formula:
Independent Formula & Derivative of E（PID_EQ=False & PID_DE=False）
Independent Formula & Derivative of PV（PID_EQ=False & PID_DE=True）
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