TECHTOP TD20 Series Product Manual page 109

TD20 Series VFD
Function
instruction
AI 1
AI 2
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
External counting
value
Torque setting
VFD code
Fault code
Setting frequency
Bus voltage
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
01
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
n
10 . Take the table as the example:
Address
definition
300CH
300DH
300EH
300FH
3010H
3011H
3012H
3013H
3014H
3015H
3016H
5000H
3001H
3002H
Meaning Code low 8 position
TD
Data meaning instruction
06 TD20 Vector VFD
-107-
Communication Protocol
R/W
characteristics
R
R
R
Meaning