S1 series standard inverter
-194-
Inverter
address
CRC
Error code
Exception
response code
01
86
04
43 A3
The exception response code 86H (generated based on the MSB "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 the formats of the read and write commands, see sections 9.4.1 and 9.4.2.
9.4.8.1 Read command 03H examples
Example 1: Read state word 1 of the inverter whose address is 01H. From the table of other function
parameters, we can see that the parameter address of state word 1 of the inverter is 2100H.
The read command transmitted to the inverter is as follows:
Read
command
Inverter
address
CRC
Parameter
address
Data quantity
01
03
21 00
00 01
8E 36
Assume that the following response is returned:
Read
command
Number
of bytes
Data content
CRC
Inverter
address
01
03
02
00 03
F8 45
The data content returned by the inverter is 0003H, which indicates that the inverter is in the stopped
state.
Example 2: View information about the inverter whose address is 03H, including "Type of current
fault" (P07.27) to "Type of last but four fault" (P07.32) of which the parameter addresses are 071BH to
0720H (contiguous 6 parameter addresses starting from 071BH).
The command transmitted to the inverter is as follows:
Inverter
address
Read
command
Start
address
6 parameters in total
CRC
03
03
07 1B
00 06
B5 59
Assume that the following response is returned:
Inverter
address
Read
command
Number of
bytes
Type of
last fault
Type of
current fault
Type of last
but one fault
CRC
Type of last
but two fault
Type of last
but three fault
Type of last
but four fault
03 03 0C 00 23 00 23 00 23 00 23
00 23
00 23
5F D2
From the returned data, we can see that all the fault types are 0023H, that is, 35 in the decimal form,
which means the maladjustment fault (STo)
