Functions Of Ifd9502; When Ifd9502 Is Connected To Delta Vfd Series Ac Motor Drive - Delta Electronics DeviceNet IFD9502 Applications Manual

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Functions of IFD9502

3.1 When IFD9502 is connected to Delta VFD series AC motor drive

1. Baud rate and the setting of communication format
Before connecting Delta AC motor drive to the BUS, first set up the node address of the AC motor drive as 01,
baud rate as 38,400bps and communication format as 8, N, 2; RTU (the format is fixed; other formats will be
invalid).
2. Modifying parameters in AC motor drive in the configuration software
When the configuration software is used for modifying a parameter in AC motor drive, IFD9502 will read the
maximum value, minimum value and read/write attribute of the parameter and decide if the value modified by
the user falls within the modifiable range and whether to modify the parameter.
3. Reading and modifying parameters
IFD9502 allows you to inquire Delta AC motor drive by explicit messages. The format of rthe inquiry is
shown in the table below.
Byte position
0
1
2
3
4
5
6
7
DVP-PLC Application Manual
DeviceNet Slave Communication Module IFD9502
DVPDNET-SL
DVP28SV
DVPDNET DVP28SV
RUN
STOP
Master
DeviceNet
Data written into AC motor drive
Frag [0]+XID+MAC ID
R/R [0]+Service code [0x10]
Class ID [0x0F]
Instance ID LSB
Instance ID MSB
Attribute ID
Service data LSB
Service data MSB
Delta VFD series
AC motor drive
RJ12
RS-485 communication
Data read from AC motor drive
Frag [0]+XID+MAC ID
R/R [0]+Service code [0x0E]
Class ID [0x0F]
Instance ID LSB
Instance ID MSB
Attribute ID
N/A
N/A
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