Detects Heater or Sensor Errors in Control Loops during Heating Process

Use a Power Controller to control the temperature of the electric furnace. Heater burnout could not be detected based on current output, but the loop break alarm function will detect it. The LBA (loop break alarm) turns the alarm signal ON by assuming the occurrence of a control loop failure if there is no input change with the control output set to the highest or lowest value. Therefore, this function can be used to detect control loop errors.