Faults

The following faults are specified:

• Tune Fault

  This happens, when there is something wrong during the tune process, e.g. the temperature change is too small to calculate reasonable PID parameters.

• Thermal Coupler Fault 1

  Plausibility check of the temperature value, if it is inside the plausible range for case like wire cut.

• Thermal Coupler Fault 2

  Plausibility check of the temperature change to avoid e.g. inverted connection of two sensors.

• HighHigh Temperature Fault

  Check, if the actual temperature reaches the allowed up limit of the process.

• LowLow Temperature Fault

  Check, if the actual temperature reaches the allowed down limit of the process.