CHV180 series frequency inverter special for elevator Communication protocol
.103.
Protocol data unit Data length(bytes) Range
Command 1 0x03
Returned byte number 2 2* Read number
Content 2* Read number
If the command is reading the type of inverter (data address 0x3016), the content value
in reply message is the device code:
The high 8 bit of device code is the type of the inverter, and the low 8 bit of device code
is the sub type of inverter.
For details, please refer to the following table:
High byte Meaning
Low byte Meaning
00 CHV
01 Universal type
02 For water supply
03 Middle frequency 1500HZ
04 Middle frequency 3000HZ
01 CHE
01 Universal type
02 Middle frequency 1500HZ
02 CHF 01 Universal type
If the operation fails, the inverter will reply a message formed by failure command and
error code. The failure command is (Command＋0x80). The error code indicates the
reason of the error; see the table below.
Value
The command from master can not be executed. The reason
maybe:
1. This command is only for new version and this version can
not realize.
2. Slave is in fault state and can not execute it.
02H
Illegal data
address.
Some of the operation addresses are invalid or not allowed to
access.
03H
Illegal
value
When there are invalid data in the message framed received
by slave.
Note: This error code does not indicate the data value to write
exceed the range, but indicate the message frame is a illegal
frame.
06H
Inverter is busy(EEPROM is storing)
10H
Password The password written to the password check address is not
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