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S-PM Geared Motors Parallel shaft type

S-PM Geared Motors Parallel shaft type

Sensorless operation allows for stable speed control comparable to servo motors

This product combines an S-PM motor (permanent magnet motor) with Mitsubishi Electric's unique sensorless vector controller to achieve high-precision speed control.
With a ±0.05% speed variance rate that is comparable to a servo motor, it can be put to use in conveyance applications that require high precision such as on semiconductor and liquid-crystal production lines that induction motors cannot handle.

Rotation speed ― Torque characteristics
Sensorless control

Geared motors to date

S-PM geared motor (sensorless)

Premium efficiency compliant with IE3

S-PM motors are high-performance, energy-saving motors with a strong permanent magnet (high-performance ferrite magnet) in the rotor.
The motors are compliant with the IE3 high efficiency standard for induction motors and can reduce the energy consumption of equipment.


Comparison of motor efficiency
IEC60034-30 Efficiency class
Output (kW) Motor efficiency (%) Annual electric power
reduction (kWh)
Annual electric power
reduction (¥)
Annual CO2
reduction (kg)
Standard
(induction motor)
S-PM
0.1 68.5 75.3 1,155 16,170 641
0.2 71.4 81.4 3,014 42,196 1,673
0.4 75.0 87.4 6,628 92,792 3,679
0.75 79.9 89.5 8,820 123,480 4,895
1.5 81.4 88.9 13,619 190,666 7,559
2.2 83.6 90.6 17,811 249,354 9,885

[Test conditions]: 10 units in operating, rated load, operation time : 8,760 hrs/year (= 24 hrs/day × 365 days/year), electric power rate : ¥14/kWh, CO2 emissions : 0.555 kg/kWh
Efficiency values at 1,800 r/min (220V/60Hz) for induction motor and at 3,000 r/min for S-PM.
* Reference figures only. Represents power consumption of the motor, and do not include the drive unit.