Omron 3G3RX User Manual

4-162
4-4 Communication Function
4
Functions
<Negative Response>
•Response frame
Frame format
STX Station No. NAK Error code BCC CR
Description Data size Setting
STX Control code (Start of TeXt) 1 byte STX (0x02)
Station No. Station No. of the target Inverter 2 bytes 01 to 32
NAK
Control code
(Negative AcKnowledge)
1 byte NAK (0x15)
Error code Communication error status 2 bytes *
BCC Block check code 2 bytes
Exclusive OR from station No. to
data. (Refer to page 4-163.)
CR Control code (Carriage Return) 1 byte CR (0x0D)
*
Error Code List
Error code Description
01H Parity error
02H Checksum error
03H Framing error
04H Overrun error
05H Protocol error
06H ASCII code error
07H Receiving buffer overrun error
08H Receiving timeout error
 
 
11H Command invalid error
12H 
13H Execution disabled error
14H 
15H 
16H Parameter invalid error
17H 
During communication with all stations, the Inverter
sends no response.

Omron 3G3RX Specifications

General

Dimensions	Varies by model
Weight	Varies by model
Series	3G3RX
Power Rating	0.4 kW to 220 kW
Control Method	V/f control, Sensorless vector control
Protection Functions	Overcurrent, Overvoltage, Undervoltage, Overheat, Ground fault, Short circuit
Communication Options	RS-485, Modbus, DeviceNet, Profibus, Ethernet
Operating Temperature	-10°C to +50°C
Storage Temperature	-20°C to +60°C (-4 to 140°F)
Humidity	5% to 95% (non-condensing)
Vibration Resistance	5.9 m/s² (0.6G)
Cooling Method	Fan-cooled