Omron MX2 Series User Manual

5 Basic Settings
5 - 48
Multi-function Compact Inverter 3G3MX2-EV2 User’s Manual (I666-E1)
5-9-5 Multi-step Speed Operation Function
• Use this function to switch the frequency reference set in the Multi-step Speed Reference 0 to 15
based on the combination of inputs to multi-function input terminals.
• For multi-step speed operation, you can select either 4-terminal binary operation (in 16 steps maxi-
mum) or 7-terminal bit operation (in 8 steps maximum).
Parameter
No.
Function name
Data
Default data
Unit
A019
Multi-step Speed Selection
00: Binary (16-step selection with
4 terminals)
01: Bit (8-step selection with 7 ter-
minals)
00
−
A020
1st Multi-step Speed Reference 0
0.00
Starting Frequency (b082) to 1st
Maximum Frequency (A004)
6.00
Hz
A220
2nd Multi-step Speed Reference 0
*1
0.00
Starting Frequency (b082) to 2nd
Maximum Frequency (A204)
A021
Multi-step Speed Reference 1
0.00
Starting Frequency (b082) to 1st/2nd
Maximum Frequency (A004/204)
0.00
A022
Multi-step Speed Reference 2
A023
Multi-step Speed Reference 3
A024
Multi-step Speed Reference 4
A025
Multi-step Speed Reference 5
A026
Multi-step Speed Reference 6
A027
Multi-step Speed Reference 7
A028
Multi-step Speed Reference 8
A029
Multi-step Speed Reference 9
A030
Multi-step Speed Reference 10
A031
Multi-step Speed Reference 11
A032
Multi-step Speed Reference 12
A033
Multi-step Speed Reference 13
A034
Multi-step Speed Reference 14
A035
Multi-step Speed Reference 15
*1. To enable the switching to the 2nd control, allocate one of the Multi-function Input Terminal 1 to 7 Selection (C001
to C007) to 08 (SET) and turn ON that terminal.
Precautions for Correct Use
Use the 1st/2nd Frequency Reference Selection (A001/A201) to set the 1st/2nd Multi-step
Speed Reference 0 (A020/A220).
Set the 1st/2nd Frequency Reference Selection (A001/A201) to 02 (Digital Operator: F001) to
enable the 1st/2nd Multi-step Speed Reference 0 (A020/A220).

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