Saftronics HPVFE - Accessing Drive Parameters via Modbus; Reading and Writing Drive Parameters

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Reading (03) Feedback
The Feedback (Output Frequency) from the HPVFE drive can be read via the network by sending Function Code
03 reads to register address 8451 (Feedback).
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].
Reading (03) Drive Error Codes
The HPVFE Error Code data can be read via the network by sending Function Code 03 reads to register address
8449 (Drive Error Codes).
Logic Command
Address (Decimal)
Bit(s)
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
63
Software Overcurrent
64
Drive Overload
70
Power Unit Fail
80
AutoTune Fail
81
Communication Loss
100
Parameter Checksum Error
122
I/O Board Fail