Internal controller temperature sensor error
Lenze · 9300 Series
Was bedeutet H11 ?
The sensor for detecting the internal temperature of the controller is indicating undefined values. This prevents accurate monitoring of the internal component temperature, risking damage from overheating.
Häufige Ursachen
- Failure of the internal control board temperature sensor, sending an invalid signal.
- Intermittent connection or damage to the sensor on the control board due to vibration or manufacturing defect.
- Corruption of the analog-to-digital converter (ADC) or processing logic on the control board responsible for reading the sensor.
- Excessive internal heat buildup in the enclosure leading to sensor malfunction or damage, even if the heatsink is cool.
Reparaturschritte & Checkliste
Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.
- 1
Power cycle the drive (disconnect mains, wait 5 minutes) to reset the internal monitoring circuits.
- 2
Ensure the ambient temperature around the drive is within the specified operating limits (e.g., 0-50°C) as per the datasheet.
- 3
Inspect the control board for any visible damage or signs of overheating, particularly around the temperature sensor component (often a small SMD thermistor).
- 4
Check all internal ribbon cables and connectors on the control board for proper seating and connection.
- 5
If applicable, use diagnostic software to view the raw internal temperature sensor value; if it's constantly at an extreme (e.g., -40°C or +150°C), the sensor is likely faulty.