Omron MX2 Series User Manual

5 Basic Settings
5 - 12
Multi-function Compact Inverter 3G3MX2-EV2 User’s Manual (I666-E1)
Changing the Heavy load/Light Load Selection (b049) setting switches the setting ranges and default
data of some parameters.
Doing so also causes some parameter settings to be initialized at the same time.
For these parameters, you must set data again after changing the b049 setting even if you configured
them beforehand.
• Changing from heavy load mode to light load mode:
Basically causes the parameter settings to be initialized. For details, refer to the Initialization at load
mode switching column in the following table.
• Changing from light load mode to heavy load mode:
Basically does NOT cause the parameter settings to be initialized. For details, refer to the Initializa-
tion at load mode switching column in the following table.
⚫ Parameters whose setting ranges and default data are switched between nor-
mal load and light load mode
Para-
meter
No.
Function
name
Setting range
Default data
Initialization at
load mode
switching
Heavy load (CT)
Light load (VT)
Heavy
load (CT)
Light
load (VT)
Normal
to Light
Light to
Normal
A044
1st Control
Method
00: Constant torque
characteristics
01: Reduced torque
characteristics
02: Free V/f setting
03: Sensorless vector
control
00: Constant torque
characteristics
01: Reduced torque
characteristics
02: Free V/f setting
00
No
switching
Enabled
Disabled
A244
2nd Control
Method
00: Constant torque
characteristics
01: Reduced torque
characteristics
02: Free V/f setting
03: Sensorless vector
control
00: Constant torque
characteristics
01: Reduced torque
characteristics
02: Free V/f setting
00
No
switching
A054
DC Injection
Braking Power
Percentage of heavy load
rated current
0. to 100. [%]
Percentage of light load
rated current
0. to 70. [%]
50. [%]
No
switching
Enabled
Disabled
A057
Startup DC
Injection Brak-
ing Power
0. [%]
No
switching
b012
1st Electronic
Thermal Level
0.20 to 1.00  Heavy load
rated current [A]
0.20 to 1.00  Light load
rated current [A]
Normal-
load rated
current [A]
Light load
rated
current [A]
Conversion
*1
Conversion
*1
b212
2nd Electronic
Thermal Level
b016
Free-electronic
Thermal
Current 1
0.00 to 1.00  Heavy load
rated current [A]
0.00 to 1.00  Light load
rated current [A]
0.00 [A]
No
switching
Conversion
*1
Conversion
*1
b018
Free-electronic
Thermal
Current 2
b020
Free-electronic
Thermal
Current 3
b022/
b222
1st/2nd
Overload Limit
Level
0.20  Heavy load rated
current to 2.00 
Heavy load rated current [A]
0.20  Light load rated cur-
rent to 1.50  Light load rated
current [A]
1.50 
Normal-
load rated
current [A]
1.20 
Light load
rated
current [A]
Enabled
Conversion
*1
b025
1st Overload
Limit Level 2
b028
Frequency
Pull-in Restart
Level
0.20  Heavy load rated
current to 2.00 
Heavy load rated current [A]
0.20  Light load rated cur-
rent to 1.50  Light load rated
current [A]
Normal-
load rated
current [A]
Light load
rated
current [A]
Enabled
Conversion
*1
b083
Carrier
Frequency
2.0 to 15.0 [kHz]
2.0 to 10.0 [kHz]
10.0 [kHz]
2.0 [kHz]
Enabled
Disabled

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