In this guide, we’ll cover everything you need to know about on-board diagnostic systems and DTC meanings to help keep your fleet in peak condition.ĭTC stands for diagnostic trouble code. When an issue occurs, the check engine light is activated and a DTC (diagnostic trouble code) is generated to pinpoint the problem. This fault occurs if one of the output motor phases is lost or open and cannot conduct power.All modern fleet vehicles have built-in computers that monitor performance. Motor Phase – The drive will display “FAULT-34 MOTOR PHASE” or “F0034” on the advanced and basic keypads, respectively.If there is no encoder present, this fault will also show due to a parameter error. This fault occurs when the drive cannot detect a valid encoder signal. Encoder Error – The drive will display “FAULT-23 ENCODER ERROR” or “F0023” on the advanced and basic keypads, respectively.This fault occurs when the motor ID run was not completed successfully.
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Overcurrent – The drive will display “FAULT-1” or “F0001” on the advanced and basic keypads, respectively.We encourage you to read each part in full, as they include important information on possible causes, troubleshooting techniques and suggested resolutions for each fault.
#FIRST CLASS TROUBLE CODES SERIES#
To help you diagnose issues you’re having with the ACS550, we ran a five-part series covering the most common fault codes encountered on the drive.īelow you will find a list of each fault covered in the series, a brief description of each fault and a hyperlink to each part in the series. With over 50 fault codes, it may be difficult to identify where your drive is is encountering issues. With plug and play convenience right out of the box, the ACS550 is ideal for for variable and constant torque applications from pumps and fans to conveyors and mixers as well as many other variable and constant torque applications.īecause the ACS550 is such a valuable tool, it can be a headache when something goes wrong. ABB’s ACS550 Variable Frequency Drive is a general purpose drive that covers a wide range of industrial applications.