Even with a 57% reduction in volume this inverter still offers high performance. Functions available on this inverter include general-purpose magnetic flux vector control and auto tuning functions. These functions ensure that these inverters can be used in applications that require high starting torque, such as washing machines, agitators, and transfer machines which includes conveyors, hoists, and elevators.
- The high torque of 150% / 1 Hz is realized (when the slip compensation function is valid).
With the “non-rotation” auto-tuning function the motor constant (R1) can be automatically calculated.
There is also a brake unit connection which allows a brake unit to be connected using terminal P/+ and terminal N/-. This is useful for applications that require regenerative braking torque during deceleration, such as transfer machines and food machines. When using the inverter with the brake unit, it is recommended the FR-CS84-050-60 inverter or a higher capacity inverter is used.
Optimum excitation control continuously adjusts the excitation current to an optimum level to provide the highest motor efficiency. For example, at 4% motor load torque for a general-purpose motor, the motor efficiency under Optimum excitation control is about 30% higher than the motor efficiency under V/F control. Optimum excitation control is another option on this inverter. The excitation current is constantly adjusted to its optimum value to drive the motor most efficiently. With a small load torque, a substantial energy saving can be achieved.