Omron MX2 Series User Manual page 189

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 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 mode switching column in the following table.
Parameters whose setting ranges and default data are switched between
heavy load and light load mode
Para-
Function
meter
name
No.
1st Control 00:
Method
01:
A044
02:
03:
2nd Control 00:
Method
01:
A244
02:
03:
DC Injection Percentage of heavy-load
A054
Braking Power rated current
0. to 100. [%]
Startup DC
A057 Injection Brak-
ing Power
DC Injection 2.0 to 15.0 [kHz]
A059 Braking Carrier
Frequency
0.20 to 1.00 × Heavy-load
1st Electronic
b012
Thermal Level rated current [A]
2nd Electronic
b212
Thermal Level
0.00 to 1.00 × Heavy-load
Free-electronic
b016 Thermal rated current [A]
Current 1
Free-electronic
b018 Thermal
Current 2
Free-electronic
b020 Thermal
Current 3
0.20 × Heavy-load rated
1st/2nd
b022/
current to 2.00 ×
Overload Limit
b222
Level Heavy-load rated current [A]
1st Overload
b025
Limit Level 2
0.20 × Heavy-load rated
Frequency
current to 2.00 ×
b028 Pull-in Restart
Level Heavy-load rated current [A]
Multi-function Compact Inverter 3G3MX2-V1 User's Manual (I585-E1)
Setting range
Heavy load (CT) Light load (VT)
Constant torque 00:
characteristics
Reduced torque 01:
characteristics
Free V/f setting 02:
Sensorless vector
control
Constant torque 00:
characteristics
Reduced torque 01:
characteristics
Free V/f setting 02:
Sensorless vector
control
Percentage of light-load
rated current
0. to 70. [%]
2.0 to 10.0 [kHz]
0.20 to 1.00 × Light-load
rated current [A]
0.00 to 1.00 × Light-load
rated current [A]
0.20 × Light-load rated cur-
rent to 1.50 × Light-load rated
current [A]
0.20 × Light-load rated cur-
rent to 1.50 × Light-load rated
current [A]
Default data
Heavy
load (CT)
Constant torque 00
characteristics
Reduced torque
characteristics
Free V/f setting
Constant torque 00
characteristics
Reduced torque
characteristics
Free V/f setting
50. [%]
0. [%]
5.0 [kHz]
Heavy-load
rated
current [A]
0.00 [A]
1.50 ×
Heavy-
load rated
current [A]
Heavy-
load rated
current [A]
5 Basic Settings
Initialization at
mode switching
Light Heavy to Light to
load (VT) Light Heavy
No Enabled Disabled
switching
No
switching
No Enabled Disabled
switching
No
switching
2.0 [kHz] Enabled Disabled
Light-load
*1
Conversion Conversion
rated
current [A]
No
*1
Conversion Conversion
switching
1.20 ×
Enabled
Conversion
Light-load
rated
current [A]
Light-load Enabled
Conversion
rated
current [A]
5 - 13
5
*1
*1
*1
*1