TECHTOP TD20 Series, Руководство по эксплуатации продукта

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TD20 Series VFD Communication Protocol
-107-
Function
instruction
Address
definition
Data meaning instruction
R/W
characteristics
AI 1 300CH R
AI 2 300DH
Reserved 300EH
Reserved 300FH
Reserved 3010H
Reserved 3011H
Reserved 3012H
Reserved 3013H
External counting
value
3014H
Torque setting 3015H
VFD code 3016H
Fault code 5000H
Setting frequency 3001H R
Bus voltage 3002H R
R/W characteristics means the function is with read and write characteristics. For example,
"communication control command" is writing chrematistics and control the VFD with writing command
(06H). R characteristic can only read other than write and W characteristic can only write other than
read.
Note: when operating on the VFD with the table above, it is necessary to enable some parameters. For
example, the operation of running and stopping, it is necessary to set P00.01 to communication running
command channel and set P00.02 to MODBUS communication channel. And when operate on "PID
given", it is necessary to set P09.00 to "MODBUS communication setting".
The encoding rules for device codes (corresponds to identifying code 2103H of the VFD)
Code high 8bit Meaning Code low 8 position Meaning
01 TD 06 TD20 Vector VFD
Note: The code consists of 16 bits which is high 8 bits and low 8 bits. High 8 bits mean the motor type
series and low 8 bits mean the derived motor types of the series. For example, 0110H means TD20
vector VFDs.
7.3.6 Fieldbus ratio values
The communication data is expressed by hex in actual application and there is no radix point in hex. For
example, 50.12Hz cannot be expressed by hex so 50.12 can be magnified by 100 times into 5012, so
hex 1394H can be used to express 50.12.
A non-integer can be timed by a multiple to get an integer and the integer can be called fieldbus ratio
values.
The fieldbus ratio values are referred to the radix point of the setting range or default value in the
function parameter list. If there are figures behind the radix point (n=1), then the fieldbus ratio value m is
10
n
. Take the table as the example: