RS485 (DSI) Protocol C-7
Reading (03) Feedback
The Feedback (Output Frequency) from the PowerFlex 40P drive can be
read via the network by sending Function Code 03 reads to register
address 8451 (Feedback).
Reading (03) Drive Error Codes
The PowerFlex 40P Error Code data can be read via the network by
sending Function Code 03 reads to register address 8449 (Drive Error
Codes).
Feedback
(1)
Address (Decimal) Description
8451
A xxx.x decimal value where the decimal point is fixed. For example, a decimal
“123” equals 12.3 Hz and “300” equals 30.0 Hz.
(1)
Returns the same data as Reading (03) Parameter d001 [Output Freq].
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
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 Parameters Defaulted
63 Software Overcurrent
64 Drive Overload
70 Power Unit Fail
71 Network Loss Fault
80 AutoTune Fail
81 Communication Loss
94 Encoder Loss Fault
100 Parameter Checksum Error
111 Hardware Enable Fault
122 I/O Board Fail