Temperature input error

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The temperature sensor connected to the drive's input is either not detected, improperly connected, or providing an invalid signal. This prevents the drive from accurately monitoring temperature.

• Disconnection or open circuit in the temperature sensor wiring connected to the drive's analog input terminals (e.g., 53/54).
• Faulty temperature sensor (e.g., PT100, NTC thermistor) providing an out-of-range signal (e.g., too high or too low resistance).
• Incorrect wiring of the sensor to the drive's terminals (e.g., 2-wire sensor connected to 3-wire input, reversed polarity).
• Drive's analog input parameter (e.g., P6-10 Sensor Type, P6-11 Low Value) incorrectly configured for the specific sensor type.
• Damage to the drive's analog input circuit on the control board, preventing accurate signal reading.

Klikk på steg for å spore fremgangen.

1. 1

   Power down the drive, disconnect the temperature sensor wires from the drive's input terminals (e.g., 53/54).

2. 2

   Measure the resistance of the temperature sensor across its leads; compare to the sensor's specified temperature/resistance curve (e.g., PT100 should be 100 Ohms at 0C).

3. 3

   Inspect the entire length of the sensor wiring for breaks, insulation damage, or loose connections.

4. 4

   Verify the analog input configuration parameters (e.g., P6-10 Analog Input Type, P6-11 Analog Input Low Value, P6-12 Analog Input High Value) are correct for the installed sensor.

5. 5

   Temporarily connect a known good reference resistor (e.g., 100 Ohm for PT100) to the input terminals to simulate a valid sensor reading.