Goodrive18 series two-in-one VFD Communication
-131-
only, and "W" indicates that a function code is written only.
Note: Some parameters in the preceding table are valid only after they are enabled. Take the
running and stop operations as examples, you need to set "Channel of running commands"
(P00.01) to "Communication", and set " PID given source" (P09.00) to "Modbus".
The following table describes the encoding rules of device codes (corresponding to the
identification code 2103H of the VFD).
Goodrive18 series two-in-one
VFD
Note: A device code consists of 16 bits, with 8 MSBs and 8 LSBs. The 8 MSBs indicate the
model series, and the 8 LSBs indicate the derivative model.
7.4.3 Fieldbus scale
In actual applications, communication data is represented in the hexadecimal form, but
hexadecimal values cannot represent decimals. For example, 50.12 Hz cannot be
represented in the hexadecimal form. In such cases, multiply 50.12 by 100 to obtain an integer
5012, and then 50.12 can be represented as 1394H (5012 in the decimal form) in the
hexadecimal form.
In the process of multiplying a non-integer by a multiple to obtain an integer, the multiple is
referred to as a fieldbus scale.
The fieldbus scale depends on the number of decimals in the value specified in "Setting range"
or "Default value". If there are n decimals in the value, the fieldbus scale m is the nth-power of
10. Take the following as an example, where m is 10.
Delay for recovery
from hibernation
0.0–3600.0s (valid when P01.19
is 2)
If "Setting range" or "Default value" contains one decimal, the fieldbus scale is 10. If the value
received by the upper computer is 50, "Delay of auto fault reset" of the rectifier is 5.0
To Next Page
Loading...
Need help?
General
