Hitachi L700 SERIES Instruction Manual page 164

Chapter 4 Explanation of Functions
The commands are described below.
(i) 00 command: This command instructs the inverter to drive the motor (for forward or reverse rotation)
or stop the motor. (To use this command, set "A002" to "03" [RS485].)
- Transmission frame
Frame format
STX Station No. Command
STX Control code (Start of TeXt)
Station number of control-target
Station No.
inverter
Command Command to be transmitted
Data Data to be transmitted
BCC Block check code
CR Control code (Carriage Return)
Note 1:
Data
0
1 Forward rotation command
2 Reverse rotation command
(Example) When sending a forward rotation command to the inverter with station No. 01:
(STX) |01|00|1| (BCC) | (CR)
- Response frame
Positive response: See Item (2)-(i) of this section.
Negative response: See Item (2)-(ii) of this section.
(ii) 01 command: This command sets the inverter output frequency. (To use this command, set "A001" to
"03" [RS485].)
- Transmission frame
Frame format
STX Station No. Command
STX Control code (Start of TeXt)
Station number of control-target
Station No.
inverter
Command Command to be transmitted
Data to be sent (decimal ASCII
Data
code)
BCC Block check code
CR Control code (Carriage Return)
Note 2: For example, to set the output frequency of the inverter with station No. 01 to 5 Hz, the data is as
follows:
(STX) |01|01|000500| (BCC) | (CR)
30|30 35|0D
Note 3: The data indicates a value 100 times as large as the actual frequency value to be set.
(Example) 5 (Hz)
Note 4: When using the data as the feedback data for PID control, set the most-significant byte to "1".
(Example) 5 (%)
- Response frame
Positive response: See Item (2)-(i) of this section.
Negative response: See Item (2)-(ii) of this section.
Data
Description
Description
Stop command
Conversion into ASCII format
Data
Description
500 000500
500 100500
BCC CR
Data size
1 byte STX (0x02)
2 bytes 01 to 32, or FF (broadcast to all stations)
2 bytes 00
1 byte See Note 1.
XOR of the items from "Station No." to "Data."
2 bytes
See Item (3) of this section.
1 byte CR (0x0D)
02|30 31|30 30|31|33 30|0D
BCC CR
Data size
1 byte STX (0x02)
2 bytes 01 to 32, or FF (broadcast to all stations)
2 bytes 01
6 bytes See Note 2.
XOR of the items from "Station No." to "Data."
2 bytes
See Item (3) of this section.
1 byte CR (0x0D)
Conversion into ASCII format
Conversion into ASCII format
Conversion into ASCII format
4 - 102
Setting
Remarks
Setting
02|30 31|30 31|30 30 30 35 30
30 30 30 35 30 30
31 30 30 35 30 30