Explanation of Function
Seite 148 / 180
(3) Communication protocol
The method of the communication protocol is shown below in the time diagram.
The following is indicated.
(1):Frame transmitted from external control machines to the inverter
(2):Frame replied from inverter to the external control machines
Frame (2)
from the inverter is a reply to frame (1) from the external control machine, the active
output is not operated.
The commands are shown below;
Command list
Comman
d
Command description
Advisabili
ty of all
code
Notes
00
Forward / backward / stop command
01
Setting of frequency command
02
Setting of intelligent terminal state
03
Collective reading of monitor data
04
Reading of inverter state
05
Reading of trip history
06
Reading of 1 setting item
07
Setting of 1 set item
08
Returning of each set value to initial
value
This doesn’t operate unless
b084 is set to (01 or 02).
09
This checks whether set value can
be
Conserved to EEPROM or not.
0A
This
conserves
set
value
to
Waiting time (setting with operator)
Time
Inverter
External
control
machines
(2)
(1)
C078
