Kruger Ecowatt K320 Series Operation Manual page 303

Ecowatt Drive K320 series
®
01
VFD
address
The exception response code 86H (generated based on the highest-order bit "1" of the write
command 06H) indicates that it is an exception response to the write command (06H). The
error code is 04H. From the preceding table, we can see that it indicates the error "Operation
failure", which means "The parameter is set to an invalid value in the write operation".
9.4.8 Read/Write operation example
For details about the formats of the read and write commands, see sections 9.4.1 and 9.4.2.
9.4.8.1 Examples of read command 03H
Example 1: Read status word 1 of the VFD whose address is 01H. According to the table of other
function addresses, the parameter address of status word 1 of the VFD is 2100H.
The read command transmitted to the VFD is as follows:
01
VFD
address
Assume that the following response is returned:
01
VFD
address
The data content returned by the VFD is 0003H, which indicates that the VFD is in the stopped
state.
Example 2: View information about the VFD whose address is 03H, including "Present fault
type" (P07.27) to "5th-last fault type" (P07.32) of which the parameter addresses are 071BH to
0720H (contiguous 6 parameter addresses starting from 071BH).
The command transmitted to the VFD is as follows:
03
VFD
address
Assume that the following response is returned:
03 03 0C 00 23 00 23 00 23 00 23
VFD Read Number of
address command
bytes
86
Exception
response code
03 21 00
Parameter
Read
address
command
03
Read
command
03 07 1B
Read
Start
command
address
Last fault
Present
type
fault type
04
Error code
00 01
Data quantity
02 00 03
Number
Data content
of bytes
00 06
6 parameters in total
2nd-last fault 3rd-last fault
type type
-294-
Communication
43 A3
CRC
8E 36
CRC
F8 45
CRC
B5 59
CRC
00 23 00 23
5th-last fault
4th-last fault
type
type
5F D2
CRC