Motor fit for a motion axis
The MH30701P12A2200 is a three-phase servo motor from the Schneider Electric MH3 family, delivering 930 W continuous power with a nominal torque of 1.38 Nm at 1250 rpm when paired with an LXM52 or LXM62 drive on a 115 V single-phase supply. The Multiturn SinCos Hiperface encoder provides absolute position feedback over multiple shaft revolutions — no homing cycle is needed after a power cycle, which saves time on multi-axis machines that index to a known position on startup. IP65 rating means the motor body and connector interface are sealed against washdown — suitable for food processing, beverage filling, or any line where hoses are used for cleaning.
Torque and speed across drive voltages
Nominal torque varies with the drive and supply voltage: 1.38 Nm on 115 V single-phase, 1.34 Nm on 230 V single-phase, 1.30 Nm on 400 V three-phase, and 1.27 Nm on 480 V three-phase — the torque drop at higher voltages is small but should be factored into the load margin calculation. Nominal speed also shifts with the drive configuration: 1250 rpm on 115 V single-phase, 3000 rpm on 230 V single-phase, 5500 rpm on 400 V three-phase, and 7000 rpm on 480 V three-phase — the maximum mechanical speed is 8000 rpm, so the 7000 rpm operating point leaves headroom for overshoot during deceleration. Peak stall torque is 4.2 Nm across the 115–480 V three-phase range — this is the short-term overload available for acceleration, about 3× the nominal torque, which is typical for servo-class motors.
Electrical parameters for drive tuning
The torque constant is 0.79 Nm/A at 120°C copper temperature — this is the factor that converts the drive's current command into shaft torque, and it's specified at the hot operating point, not at room temperature, so the tuning stays valid under load. Stator resistance is 8.28 Ohm and inductance is 23.4 mH, giving an electrical time constant of about 2.8 ms — the current loop in the drive needs to be tuned with this time constant in mind to avoid overshoot or oscillation. Back EMF constant is 50.72 V/krpm — at 7000 rpm the motor generates about 355 V back EMF, which must stay below the drive's DC bus voltage to maintain current control authority. Continuous stall current is 1.78 A, and the maximum current is 5.97 A — the drive's peak current rating should be at least 6 A to deliver the full peak torque.
Mechanical integration and cooling
The motor uses natural convection cooling — no fan is fitted, so it relies on airflow from the machine motion or ambient circulation. In a confined cabinet or at low duty cycles, the continuous power may need derating. Maximum radial force at the shaft is 660 N at 1000 rpm, dropping to 360 N at 6000 rpm — this is the bearing load limit for belt drives or direct-coupled loads; exceeding it shortens bearing life. The rotatable right-angled connectors allow the cable exit to be oriented in four directions — useful when the motor is mounted in a tight space where a straight connector would hit a panel wall.