Overcurrent in output stage

¿Qué significa F1.2 ?

The motor current flowing through the output stage is excessively high, potentially due to an undersized motor, issues with the current supply or transformer, incorrect ramp times, a defective phase module, or an unstable 24 V supply. This condition can lead to severe damage to both the drive and the motor if not corrected.

• Motor load exceeding the drive's continuous current rating (e.g., Parameter P3-01) or short-time overload capacity.
• Incorrectly set acceleration or deceleration ramp times (e.g., Parameter P3-04, P3-05) causing rapid current surges.
• Mechanical binding or jamming in the driven machinery causing excessive motor torque demand.
• Undersized motor for the application, leading to continuous operation at or above its current limit.
• Drive control parameters (e.g., Parameter P2-01, P2-02 for V/f control) not tuned to the motor and load characteristics.

Haga clic en los pasos para seguir su progreso.

1. 1

   Monitor the actual motor current (e.g., Parameter P7-01) during operation and compare to the drive's rated output current and motor nameplate current.

2. 2

   Increase acceleration time (e.g., Parameter P3-04) and deceleration time (e.g., Parameter P3-05) to reduce current peaks during speed changes.

3. 3

   Measure the mechanical torque required by the load using a torque wrench or appropriate sensor to verify it's within motor specifications.

4. 4

   Verify motor parameters P3-01 (Rated current), P3-02 (Rated voltage), and P3-03 (Rated frequency) are correctly entered into the drive.

5. 5

   Disconnect the motor from the mechanical load and run the drive in no-load condition to isolate if the fault is mechanical or electrical.