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9 PID CONTROL FUNCTION
9.6 Details of Parameters
Ex.
PID operation in forward operation (cooling)
Output value (MV)
Temperature
Target value (SV)
Time
Time
TD3>TD2>TD1
TD3>TD2>TD1
TD3 (PID operation)
PI operation (without differential operation)
PI operation (without differential operation)
TD2 (PID operation)
TD3 (PID operation)
Changes in output caused by disturbance
Changes caused by disturbance
TD1 (PID operation)
TD1 (PID operation)
TD2 (PID operation)