Omron MX2 Series User Manual

8 Communications Functions
8 - 3
Multi-function Compact Inverter 3G3MX2-EV2 User’s Manual (I666-E1)
8-1 Communications Specifications
The 3G3MX2-EV2 Series Inverter has the RS485-compliant Modbus communication function as stan-
dard, which enables communications with external network controllers. The basic specifications of this
communications function are provided in the table below. Note that the built-in Modbus communication
function is disabled when a communications option unit is mounted on the inverter.
Item
Description
Remarks
Protocol
Modbus communication (Slave)
Transmission speed
2,400, 4,800, 9,600, 19.2 k, 38.4 k, 57.6 k, 76.8 k,
115.2 kbps
Selectable via parameter
Synchronous system
Start-stop synchronous system
Transmission code
Binary
Transmission mode
LSB first (Transmission starts with Least Significant Bit)
Compatible interface
RS485
Data bit length
8 bits
Parity
No/Even/Odd
Selectable via parameter
Stop bit length
1 or 2 bits
Selectable via parameter
Startup method
One-side start by host command
−
Wait time
Silent Interval 0 to 1,000 [ms]
Selectable via parameter
Connection form
1: N (N = 247 max.)
(32 units max. connectable without repeaters)
Selectable via parameter
Error check
Overrun/Framing/CRC-16/Horizontal parity
Communications cable
length
500 m
8
8-1 Communications Specifications

Omron MX2 Series Specifications

General

Cooling Method	Fan cooling
Output Frequency Range	0.1 to 400 Hz
Control Method	V/f control, Sensorless vector control
Protection Functions	Overcurrent, overvoltage, undervoltage, overload, overheating, short circuit
Communication Options	Modbus RTU
Overload Capacity	150% for 60 seconds
Braking Unit	Built-in
Ambient Operating Temperature	-10°C to +50°C
Enclosure	IP20
Storage Temperature	-20°C to +65°C
Humidity	5 to 95% RH (non-condensing)
Altitude	Up to 1000m
Power Supply Voltage	200-240V AC
Input Voltage	3-phase 200-240V AC