Hitachi SJ300 Series manual 263

B–15

SJ300 Inverter

Command – 08 The 08 command initializes the inverter parameters to the factory default values. First, you must set B84 (use command 07) to specify whether you want to clear the trip history at the same time. Also, set B85 to specify the country code for the initialization (use command 07).

The frame format of command 08 follows the		Frame format
diagram and specification table.
		STX	Node		Command	BCC	[CR]
Element	Description	Size			Value
								BAppendix
STX	Control code (STart of TeXt)	1 byte		STX (0x02)
Node	Node (station) address of inverter	2 bytes		01 to 32, and FF (broadcast to all
				nodes)
Command	Transmission command	2 bytes		08
BCC	Block check sum code	2 bytes		Exclusive OR of Node,
				Command, and Data
[CR]	Control code (carriage return)	1 byte		[CR] (0x0D)

Command – 09 The 09 command verifies whether or not it is possible to set a particular parameter in the EEPROM. The frame format of command 08 follows the diagram and specification table.

Transmit frame format

STX Node Command BCC [CR]

Element	Description		Size				Value
STX	Control code (STart of TeXt)		1 byte			STX (0x02)
Node	Node (station) address of inverter		2 bytes			01 to 32
Command	Transmission command		2 bytes		09
BCC	Block check sum code		2 bytes			Exclusive OR of Node,
						Command, and Data
[CR]	Control code (carriage return)		1 byte			[CR] (0x0D)
The receive frame includes an ACK		Receive frame format
(acknowledge) character, followed by a
2-byte data field with the result.		STX		Node		ACK	Data	BCC	[CR]
Element	Description		Size				Value
STX	Control code (STart of TeXt)		1 byte			STX (0x02)
Node	Node (station) address of inverter		2 bytes			01 to 32
ACK	Control code (ACKnowledge)		1 byte			ACK (0x06)
Data	Parameter value		2 bytes			00 = setting not allowed,
						01 = setting is allowed
BCC	Block check sum code		2 bytes			Exclusive OR of Node,
						Command, and Data
[CR]	Control code (carriage return)		1 byte			[CR] (0x0D)