Command – 05 - Hitachi SJ300 Series Instruction Manual

Command – 05
The 05 command reads the inverter's trip history.
The frame format of command 05 follows the
diagrams and specification tables. The transmit
frame has no data field.
STX
Node
Command
BCC
[CR]
The receive frame has a 440-byte data field. This
consists of an 8-byte total accumulated number of
trip events, followed by six 72-byte strings for the
six most recent trip events as shown below.
STX
Node
Data
BCC
[CR]
The nine bytes of data for each trip event history is listed below. The data contains the multi-
plier to adjust the decimal point. Divide the data by that factor to derive the actual value.
Element Description
Control code (STart of TeXt)
Node (station) address of inverter
Transmission command
Block check sum code
Control code (carriage return)
Data field contents
Total count Trip 1
Element Description
Control code (STart of TeXt)
Node (station) address of inverter
Transmission data
Block check sum code
Control code (carriage return)
No. Monitor Item
1 Trip factor
2 Inverter Status A
3 Inverter Status B
4 Inverter Status C
5 Output frequency
6 Accumulated Run Mode time
7 Output current
8 Output voltage
9 Power ON time
Transmit frame format
STX Node
Size
1 byte STX (0x02)
2 bytes 01 to 32
2 bytes 05
2 bytes Exclusive OR of Node,
Command, and Data
1 byte [CR] (0x0D)
Receive frame format
STX Node
Trip 2 Trip 3 Trip 4
Size
1 byte STX (0x02)
2 bytes 01 to 32
440 (see next table)
bytes
2 bytes Exclusive OR of Node,
Command, and Data
1 byte [CR] (0x0D)
Units
—
—
—
—
Hz
hours
A
V
hours
SJ300 Inverter
Command BCC [CR]
Value
Data BCC [CR]
Trip 5 Trip 6
Value
Multiplier
—
—
—
—
10
1
10
10
1
B–11