Hitachi SJ700D-004L Instruction Manual page 188

Chapter 4
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.
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.
STX Control code (Start of TeXt)
Station number of control-target
Station No.
inverter
Command Command to be transmitted
Data Data to be sent (decimal ASCII 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)
35|0D
Note 3: The data indicates a value 100 times as large as the actual frequency value to be set.
(Example) 5 (Hz)  500  000500
Note 4: When using the data as the feedback data for PID control, set the most-significant byte to "1".
(Example) 5 (%)  500  100500
- Response frame
Positive response: See Item (2)-(i) of this section.
Negative response: See Item (2)-(ii) of this section.
Command Data
Description
Description
Stop command
Conversion into ASCII format
Command Data
Description
Conversion into ASCII format
Conversion into ASCII format
Conversion into ASCII format
Explanation of Functions
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." See
2 bytes
Item (3) of this section.
1 byte CR (0x0D)
Remarks
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." See
2 bytes
Item (3) of this section.
1 byte CR (0x0D)
02|30 31|30 31|30 30 30 35 30 30|30
30 30 30 35 30 30
31 30 30 35 30 30
4-117
Setting
Setting