A 7.5 kW servo with 17-bit magnetic feedback
The BEH18MR7513MF6D is a Schneider Electric Lexium 18 three-phase servo motor — device short name BEH18 — built around a 17-bit magnetic multi-turn encoder with 10 motor poles, sized for 7500 W continuous output at 380 V three-phase (cites:,). Closed-loop authority comes from the magnetic multi-turn feedback rather than a high-resolution optical encoder, which trades absolute multi-turn position retention for fewer alignment steps at commissioning — relevant when an integrator wants the drive to power up already knowing absolute position without a homing move (cites:,).
Torque envelope and overload margin
Continuous stall torque is 48 N.m at 380 V three-phase, with a nominal torque of 48 N.m at 1500 rpm and a peak stall torque of 120 N.m — a roughly 2.5× overload headroom above continuous, so the motor can ride through acceleration transients and shock loads without tripping the drive on Irms (cites:,). Maximum current Irms is 60.23 A at 7.5 kW / 380 V versus a continuous stall current of 26.45 A; the 2.3× current ratio mirrors the torque ratio and is the figure to compare against drive sizing charts when the machine cycle demands short punchy moves (cites:,). Holding torque with brake is 50 N.m, so the holding brake's static rating exceeds the continuous stall figure — the brake can park the load against gravity without being the weak link in a vertical axis (cites:,).
Mechanical envelope and shaft loads
The shaft is 42 mm diameter × 113 mm long with a 12 mm parallel key, on an Asian standard flange with 4 mounting holes — the dimensions buyers plan against in a panel or gearbox datasheet are 371.5 mm length, 226.5 mm depth, 271.5 mm width and 180 mm height, so coupling and gearbox alignment need to be checked against the face-mounted footprint rather than the bare shaft (cites:,). Maximum radial force Fr is 1764 N and maximum axial force Fa is 588 N at the shaft end; belt-driven and pinion-driven loads should be checked against Fr with the load distance factored in, and the holding brake must absorb the axial load directly on vertical axes (cites:,). Maximum mechanical speed is 3000 rpm versus a nominal speed of 1500 rpm — operation between 1500 and 3000 rpm enters field-weakening territory where continuous torque drops, so sizing at nominal speed (1500 rpm, 48 N.m → 7.5 kW) is the right envelope for the BOM line (cites:,).
IP67, air-cooled, two-connector wiring
IP67 sealing on an air-cooled housing suits washdown-adjacent and outdoor enclosures where condensation and cutting-fluid splash reach the motor body — typical of food-and-bev conveyors, machine-tool tending cells, and outdoor packaging lines (cites:,). Electrical connection is via 2 connectors (male/female), separating power and feedback so the encoder cable can be routed away from the power conductors and the feedback shield grounded at the drive end (cites:,).