Goodrive300 Series VFD Communication protocol
221
-300.0–300.0% (unit: 0.1%)
Identifying code
of the VFD
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 operate 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)
10.4.6 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 refered 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
. Take the table as the example:
To Next Page
Loading...