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

Page 195

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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

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