Power section monitoring
The error is triggered by the diagnosis module if the power section monitoring (Ixt monitoring ) has responded.
If the calculated value exceeds the value in Parameter ID52 "Mon. LT Ixt Value" by 100%, the error is triggered and the maximum torque current (ID462) limited so that the power section runs with power section nominal current . The Ixt value is proportional to the power section current load.
The error is also triggered if the measured power section temperature exceeds 85°C. The power section temperature can be read out via the parameter ID1657 "LT Temperature".
The error is signalled to the primary control. If the primary control switches the drive controller off, renewed release of the drive controller is prevented until the cause of the error is corrected and the error acknowledged.
Source and Remedy
Power section monitoring has responded and max. torque current ID462 was limited. Check parameter ID 55 ( LT Nom Current) or drive system parameterisation.
Mechanical load too high. Check the mechanical system.
Malfunction in the motor commutation leads to overloading of the power section. Check the commutation angle and the parameterisation of the field current ID468 "Field Current".
Temperature of the power section greater than 85°C. Check the connections of the power section temperature sensor.