Reading (03) drive error codes, Reading (03) and writing (06) drive parameters, Additional information – Rockwell Automation 22C PowerFlex 400 AC Drive FRN 1.xx - 7.xx User Manual
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Modbus RTU Protocol
E-5
PowerFlex 400 Adjustable Frequency AC Drive FRN 1.xx - 7.xx User Manual
Publication 22C-UM001I-EN-P
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