Kruger Ecowatt K320 Series Operation Manual page 301

Ecowatt Drive K320 series
®
01
VFD
address
After receiving the command, the VFD converts 50 into 5.0 based on the fieldbus scale, and
then sets "Wake-up-from-sleep delay" to 5.0s.
For another example, after the upper computer transmits the "Wake-up-from-sleep delay"
parameter read command, the master receives the following response from the VFD:
01
VFD
address
The parameter data is 0032H, that is, 50, so 5.0 is obtained based on the fieldbus scale
(50/10=5.0). In this case, the master identifies that the "Wake-up-from-sleep delay" is 5.0s.
9.4.7 Error message response
Operation errors may occur in communication-based control. For example, some parameters
can only be read, but a write command is transmitted. In this case, the VFD returns an error
message response.
Error message responses are sent from the VFD to the master. The following table describes
the codes and definitions of the error message responses.
Code Name
Invalid
01H
command
Invalid data
02H
address
Invalid data
03H
value
Operation
04H
failure
Password
05H
error
06 01 14 00 32
Parameter
Write
command address
03 02
Read 2-byte
command
data
The command code received by the upper computer is not allowed
to be executed. The possible causes are as follows:
• The function code is applicable only on new devices and is not
implemented on this device.
• The slave is in the faulty state when processing this request.
For the VFD, the data address in the request of the upper computer
is not allowed. In particular, the combination of the register
address and the number of the to-be-transmitted bytes is invalid.
The received data domain contains a value that is not allowed.
The value indicates the error of the remaining structure in the
combined request.
Note: It does not mean that the data item submitted for storage in
the register includes a value unexpected by the program.
The parameter is set to an invalid value in the write operation. For
example, a function input terminal cannot be set repeatedly.
The password entered in the password verification address is
different from that set in P07.00.
Parameter
data
00 32
Parameter
data
Description
-292-
Communication
49 E7
CRC
39 91
CRC