Rockwell Automation Publication 750-PM001N-EN-P - February 2017 357
Troubleshooting Chapter 6
Technical Support Options
What You Need When You Call Tech Support
When you contact Technical Support, please be prepared to provide the
following information:
• Order number
• Product catalog number and drives series number (if applicable)
• Product serial number
• Firmware revision level
• Fault code listed in P951 [Last Fault Code]
• Installed options and port assignments
Also be prepared with:
• A description of your application
• A detailed description of the problem
• A brief history of the drive installation
• First-time installation, product has not been running
• Established installation, product has been running
The data that is contained in the following parameters help in initial
troubleshooting of a faulted drive. You can use this table to record the data
provided in each parameter listed.
Parameter(s) Name Description Parameter Data
956 Fault Frequency Captures and displays the output speed of drive at time of last fault.
957 Fault Amps Captures and displays motor amps at time of last fault.
958 Fault Bus Volts Captures and displays the DC bus voltage of drive at time of last fault.
954 Status1 at Fault Captures and displays [Drive Status 1] bit pattern at time of last fault.
955 Status2 at Fault Captures and displays [Drive Status 2] bit pattern at time of last fault.
962 AlarmA at Fault Captures and displays [Alarm Status A] bit pattern at time of last fault.
963 AlarmB at Fault Captures and displays [Alarm Status B] bit pattern at time of last fault.
951 Last Fault Code A code that represents the fault that tripped the drive.
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