19
5.
Functional difference
5.1.
Dual
duty rating
3G3MX2-V1 supports the dual duty rating: heavy load (CT) and light load (VT) that allows the inverter
to drive a motor whose capacity is one size large. Heavy load (CT) is used in this guide.
Heavy load (CT)
This mode is for general loads that temporarily exceed the rated
torque during acceleration and deceleration.
Light load (VT)
This mode is for a fan, pump, or other device that operates at the rated
motor torque or lower. With a load tolerance of 120% (of rated
torque)/min, the inverter can drive a motor that is one size larger.
5.2.
Modbus communication
Some Modbus addresses differ between 3G3JX and 3G3MX2-V1.
In order to operate correctly, refer to the
3G3MX2-V1 User’s Manual
for the addresses and
parameter settings and change not only parameter settings but also PLC/PC programs.