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Make sure that all devices on output of the drive are closed and stay closed while the drive is running To correct this turn on the flying start function in the drive.Ī device such as a contactor or disconnect switch, wired between the drive and the motor, is changing state (opening/closing) after the drive is running. The drive is starting the motor when the load is already spinning. Check if the control mode is two-wire and repair the signal so that it is not intermittent. The drive has not been tuned to the motor. If you are not familiar with these tables, look for “How to Read the Motor Cable Length Restrictions Tables” also found in Appendix A. The third page into Appendix A you will see a table entitled "Motor Cable Length Restrictions Table Cross-reference". Specific information of cable length restrictions per drive family and power rating are in Appendix A of the Wiring and Grounding for Pulse Width Modulated (PWM) AC Drives Installation Instructions, Publication Drives-IN001. Check the length of the motor leads from the drive to the motor.
Powerflex 700 manual fault codes plus#
The motor nameplate current plus the cable charging current may exceed maximum drive output. The motor nameplate information is not entered correctly in the drive parameters. One or more of the following items may cause an AC drive to produce a HW Overcurrent fault: Therefore the motor is receiving this current as well. What can cause a F12 fault in an PowerFlex AC drive and what can be done to troubleshoot or prevent this?Ī F12 fault indicates that the drive is sourcing current that is greater than 2-times its rating (generally around 250%). AC Drives: F12 Faults TroubleshootingĪccess Level: Everyone Email this page Print Subscribe to Updates