Schneider Electric Altivar 212

This fault is triggered when the analog input signal at the VIA terminal drops below the detection level configured by parameter F633 and persists for 300 milliseconds or longer. It indicates a problem with the external analog signal source, its wiring, or the drive's input circuit. Loss of a critical control signal can lead to incorrect motor operation, uncontrolled speed, or system shutdown, posing a risk of process disruption, equipment damage, or safety hazards.

This fault occurs when the estimated motor torque has continuously exceeded the configured [Overtorque level] (F616) for a duration longer than the set [Ovtorque det time] (F618). This indicates a significant mechanical overload on the motor or the connected machinery. Ignoring this fault can lead to severe damage to the motor windings, mechanical components, or drive internal circuitry due to sustained excessive current draw and heat generation. The drive stops operation upon detection to prevent further damage.

This fault occurs when the motor loading level drops below the configured [Underload level] (F611) for a period longer than the [Underload detection time] (F612), and parameter F610 is set to 1 (Fault). It indicates that the motor or driven equipment is not adequately loaded, potentially due to a mechanical issue, disconnection, or incorrect parameter settings. If left unresolved, prolonged underload can cause instability, motor overheating due to inefficient operation, or damage to the motor and driven equipment.