Question
How do we troubleshoot F59 Net Loss DPI P5 fault on a PowerFlex 700S drive?
Answer
The Port 5 Adapter Fault 75 fault will occur if the I/O is configured in the communications card and it is not configured in RSLogix 5000, or vice versa.
If the 20-COMM-E card is used to control the drive, check adapter Parameter 23 [DPI I/O Cfg], Parameter 35 [M-S Input] and Parameter 36 [M-S Output].
If the 20-COMM-C or 20-COMM-D card is used to control the drive, check adapter Parameter 13 [DPI I/O Cfg], Parameter 25 [M-S Input] and Parameter 26 [M-S Output].
Parameters [DPI I/O Cfg], [M-S Input] and [M-S Output] must be set as the same and also match the DataLink configuration in RSLogix 5000. Otherwise, the drive will have DPI Port 5 Fault 75 and a yellow mark will be displayed in from drive in I/O Configuration if you are using ControlNet, EtherNet. The E77 error code will be displayed on DeviceNet scanner if you are using a DeviceNet. network.
The values of Bit 1-4 in Parameters [DPI I/O Cfg], [M-S Input] and [M-S Output] determine whether DataLink A,B,C and D will be used or not. If your Logix program configuration doesn't select DataLink for this PowerFlex drive, then bits 1-4 of Parameters [DPI I/O Cfg], [M-S Input] and [M-S Output] must be set as 0.
See the following user manuals to configure a Master-Slave Hierarchy (Scanner-to-Drive Communication) at DPI Adapter:
20-COMM-E User Manual publication 20COMM-UM010
20-COMM-D User Manual publication 20COMM-UM002
20-COMM-C User Manual publication 20COMM-UM003
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