Omron MX2 Series User Manual

7 Other Functions
7 - 22
Multi-function Compact Inverter 3G3MX2-EV2 User’s Manual (I666-E1)
7-3 Analog I/O Settings
This section describes the analog I/O signal settings for this inverter.
7-3-1 Analog Input (O, OI)
This inverter has two types of external analog input terminals.
Frequency reference (Analog voltage input) between terminals O and L : 0 to 10 V
This terminal also treats input via the variable resistor (volume) as voltage input to the
inverter.
Frequency reference (Analog current input) between terminals OI and L : 4 to 20 mA
For 0 to 20 mA, set A103 to 0%.
For analog input start/end settings, refer to 7-3-5 Analog Input Start/End Function Settings on page 7-25.
Note 1. By default, each analog input signal is adjusted to reach the maximum frequency at 9.8 V or 19.8 mA.
2. If an excessive current is applied to the terminal OI, an E26 (analog current input error) will occur.
The table below shows analog-input related functions. Set each function according to your application.
Parameter
No.
Setting item
Function name
Data
Default
data
Unit
A001/A201
Frequency
reference
*1
1st/2nd Frequency
Reference Selection
01: Control circuit terminal
block
(Analog input)
02
−
A071
PID feedback
selection
*2
PID Selection
01: Enabled
02: Enabled (Reverse out-
put enabled)
00
−
A076
PID Feedback
Selection
00: OI (Current)
01: O (Voltage)
00
−
A071
PID feedforward
selection
*3
PID Selection
01: Enabled
02: Enabled (Reverse out-
put enabled)
00
−
A079
PID Feedforward
Selection
01: O (Voltage)
02: OI (Current)
00
−
A001/A201
1st/2nd Frequency
Reference Selection
10: Operation function
output
02
−
A141
Calculation Frequency
Selection 1
02: Input O (Voltage)
02
−
A142
Calculation
frequency
Calculation Frequency
Selection 2
03: Input OI (Current)
03
−
00: Addition (A141 + A142)
01: Subtraction (A141 −
A142)
02: Multiplication (A141 
A142)
A143
Calculation Function
Operator Selection
00
−
b040
Torque limit
*4
Torque Limit Selection
02: Analog voltage input
00
−

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