Modbus RTU Protocol E-5
Reading (03) Drive Error Codes
The PowerFlex 400 Error Code data can be read via the network by
sending Function Code 03 reads to register address 8449 (Drive Error
Codes).
Reading (03) and Writing (06) Drive Parameters
To access drive parameters, the Modbus register address equals the
parameter number. For example, a decimal “1” is used to address
Parameter b001 [Output Freq] and decimal “39” is used to address
Parameter P039 [Accel Time 1].
Additional Information
Refer to http://www.ab.com/drives/ for additional information.
Logic Status
Address (Decimal) Value (Decimal) Description
8449
0 No Fault
2 Auxiliary Input
3 Power Loss
4 Undervoltage
5 Overvoltage
6 Motor Stalled
7 Motor Overload
8 Heatsink Overtemperature
12 HW Overcurrent (300%)
13 Ground Fault
15 Load Loss
29 Analog Input Loss
33 Auto Restart Tries
38 Phase U to Ground Short
39 Phase V to Ground Short
40 Phase W to Ground Short
41 Phase UV Short
42 Phase UW Short
43 Phase VW Short
48 Params Defaulted
63 Software Overcurrent
64 Drive Overload
70 Power Unit Fail
71 Net Loss
81 Communication Loss
94 Function Loss
100 Parameter Checksum Error
122 I/O Board Fail
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