The F0001 Overcurrent STOP II error indicates that there has been an overcurrent condition in the drive converter. This can be caused by several factors, including a short-circuit at the output, ground fault, excessively large motor, or defective final stage. To diagnose and remedy the issue, you should check the cable lengths to ensure they are within the limit values, inspect the motor cable or motor for a short-circuit or ground fault, verify that the motor parameters match those of the motor being used, and check if the motor is overloaded or stalled. You can also try increasing the accelerating time, reducing the gain, or using a motor with a lower power rating. Finally, you can check if the stator resistance value (P0350) is correct. To reset the fault memory, you need to disconnect the drive converter from the line supply and power it up again. Alternatively, you can press the Fn key on the BOP or AOP, acknowledge the fault P2103 and P2104, and complete fault memory P0952.


The F0002 Overvoltage STOP II error indicates that there has been an overvoltage condition in the drive converter. This can be caused by several factors, including a DC link voltage that is higher than the overvoltage threshold or a ground fault. To diagnose and remedy the issue, you should check if the line supply voltage is within the permissible range, verify that the DC current DC link monitoring has been enabled (P1240) and correctly parameterized, and extend the deceleration ramp (ramp-down time P1121, P1135). You should also remove any ground faults and ensure that the required braking power is within the permissible limits. If necessary, you can use a braking resistor to slow down the motor. Overvoltage can be caused by an excessively high line supply voltage or by the fact that the motor is generating power in the regenerative mode. This can occur when the motor is decelerating quickly or when an active load is driving the motor. It's important to note that a higher moment of inertia requires longer deceleration times.


The F0003 Undervoltage STOP II error indicates that there has been an undervoltage condition in the drive converter. This can be caused by a line voltage failure or shock stressing outside the permissible limits. To diagnose and remedy the issue, you should check if the line supply voltage is within the permissible range and if the line supply voltage is stable with respect to sporadic failures and voltage dips (brown-outs). If the line supply voltage is not within the permissible range, you will need to adjust it to bring it back within the acceptable limits. If the voltage is unstable, you may need to address the source of the instability to prevent further undervoltage conditions from occurring. To reset the fault memory, you can refer to the instructions provided for the F0001 Overcurrent STOP II error.


The F0004 Inverter Overtemperature STOP II error indicates that the inverter temperature has exceeded the maximum allowed limit. This can be caused by inadequate cooling or if the ambient temperature is too high. To diagnose and remedy the issue, you should check if the pulse frequency (P1800) is set to the factory setting and reset it if necessary. You should also ensure that the ambient temperature lies within the permissible limits. To reduce the temperature, you can reduce the load and/or ensure adequate cooling. You should also check if the fan rotates when the inverter is operational. If the fan is not working properly, it may need to be repaired or replaced to ensure adequate cooling of the inverter. To reset the fault memory, you can refer to the instructions provided for the F0001 Overcurrent STOP II error.


The F0005 Inverter I2T STOP II error indicates that the inverter has experienced an I2T overload condition. This can be caused by several factors, including an overloaded inverter, a load duty cycle that is too high, or a motor power rating that is greater than that of the inverter. To diagnose and remedy the issue, you should check if the load duty cycle lies within the permissible limits. If the load duty cycle is too high, you should reduce it to bring it within the acceptable limits. You can also try using a motor with a lower power rating to ensure that the motor power (P0307) is less than the inverter power (r0206). If the 100% overload has been reached (refer to utilization r0036), you may need to reduce the load on the inverter to prevent further I2T overload conditions from occurring. To reset the fault memory, you can refer to the instructions provided for the F0001 Overcurrent STOP II error.

The F0011 Motor overtemperature STOP II error indicates that the motor temperature has exceeded the maximum allowed limit. This can be caused by the motor being overloaded. To diagnose and remedy the issue, you should check if the load cycle is correct, if the rated/nominal motor overtemperatures (P0626-P0628) are correct, and if the alarm threshold for the motor temperature (P0604) is set correctly. If the load cycle is too high, you should reduce it to bring it within the acceptable limits. If the rated/nominal motor overtemperatures or the alarm threshold are incorrect, you should adjust them to the correct values. To reset the fault memory, you can refer to the instructions provided for the F0001 Overcurrent STOP II error.

The F0012 No inverter temperature signal STOP I error indicates that there is no signal from the inverter temperature sensor (heatsink). This can be caused by a wire breakage of the sensor. To diagnose and remedy the issue, you should replace the inverter temperature sensor. If the sensor has failed, it may need to be replaced to ensure that the temperature of the inverter is being monitored correctly. To reset the fault memory, you can refer to the instructions provided for the F0001 Overcurrent STOP II error.

The F0015 No motor temperature signal STOP II error indicates that there is no signal from the motor temperature sensor. This can be caused by the sensor being either short-circuited or open-circuited. To diagnose and remedy the issue, you should inspect the motor temperature sensor to determine if it is working properly. If it is not working, you may need to replace it to ensure that the temperature of the motor is being monitored correctly. If a signal has been lost, the temperature monitoring may switch over to monitoring based on the thermal-motor model. To reset the fault memory, you can refer to the instructions provided for the F0001 Overcurrent STOP II error.


The F0020 Line supply phase missing STOP II error indicates that one of the three input phases is missing. This can occur if a fault is detected and the pulses are enabled and a load is present. To diagnose and remedy the issue, you should check the power connections to ensure they are okay. If there is a problem with the power connections, you may need to repair or replace the cables to restore proper power to the inverter. To reset the fault memory, you can refer to the instructions provided for the F0001 Overcurrent STOP II error.

The F0021 Ground fault STOP II error occurs if the sum of the phase currents is greater than 5% of the inverter rated current. This fault only occurs for inverters with 3 current sensors (sizes D to F, GX, FX). To diagnose and remedy the issue, you should check the connections at the motor terminal boxes and the motor cable connections at the inverter to ensure they are okay. To reset the fault memory, you can refer to the instructions provided for the F0001 Overcurrent STOP II error.

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