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8 Communications Functions
High-function General-purpose Inverter 3G3RX-V1 User’s Manual (I578-E1)
8-6 ASCII Method
8
8-6-1 Communications Procedure
8-6 ASCII Method
The inverter communicates with an external controller as follows.
(1): Frame that is sent from external controller to Inverter
(2): Frame that is sent back from Inverter to external controller
Frame (2) will be output as a response from the inverter after it receives frame (1) and is not an active
output.
Each frame format (command) is shown below. For each command, refer to the next section.
Command List
8-6-1 Communications Procedure
Command
Description
Broadcast to
all stations
Remarks
00 Inputs forward/reverse/stop command. Enabled
01 Sets frequency reference. Enabled
02 Sets multi-function input terminal status. Enabled
03 Reads all monitor data. Disabled
04 Reads the inverter status. Disabled
05 Reads the trip data. Disabled
06 Reads a parameter setting. Disabled
07 Sets a parameter value. Enabled
08
Restores all parameters to the default
datas.
Enabled
b084 must be set to 01 or 02.
(The trip data will be cleared.)
09
Checks if a set value can be stored in
EEPROM.
Disabled
0A Stores a set value in EEPROM. Enabled
0B Recalculates internal parameters. Enabled
External
controller
Inverter
(1)
(2)
C078
Time
Communication wait time (Set via the Digital Operator.)
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