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How do I fix an F1 Over Current Protection code for a DG1 drive?

There are 3 types of overcurrent conditions that occur when the output current exceeds safe running conditions. When output current is greater than 2.2 times the constant torque current rating of the drive, when this occurs the output PWM will shut down cycle by cycle after 2 sec the drive PWM will shut down and display fault. The next kind of fault is if the output current exceeds 2.8 times the constant torque current rating of the drive, the output PWM will be shut down and indicate over current fault instantaneously. The third way the drive trips on an over current protection is if the output motor current is 2.2 times the constant torque current rating the drive will begin to drop the PWM cycle by cycle until it reaches 0Hz, at which point it would fault. In dropping cycle by cycle the drive is trying to reduce the current by reducing the output frequency. 
 
All three conditions will be address in the same way 
1. The first step is to remove the motor and start the drive. If the drive trips with nothing connected the drive has failed and will have to be repaired or replaced.
2. If the drive doesn’t trip go through “checking the drives output voltages” at the bottom of this document. If the drive fails this test, repair or replace.
3. Insulation test the motor and the output run. If this tests alright see if the motor can be uncoupled. 
4. If the drive trips on an uncoupled motor connect a test motor to the drive and see if it can run this motor. For this purpose it is nice to have the test motor be the same size as the original motor although even a small motor will tell certain things. Run the drive on a known good application this works the best. If the drive trips on the test motor or known good application repair and replace the drive. 
5. If the drive can run the uncoupled motor try to spin what the motor was coupled to by hand to make sure it is not stuck. If it can spin the application re-couple the motor and try to start it again. The most likely place for the output to short is in the motor connection box, it is not bad idea to have these connections reinsulated as a precaution. This problem can come and go but will normally get worse over time.