Key ratings for drive selection
The BMI0703P02F: Torque constant is 1.41 Nm/A at 20°C, and back EMF constant is 95.39 V/krpm—these numbers set the Kt and Ke for drive tuning. Stator resistance is 7.99 Ω and inductance 25.6 mH, both at 20°C. Peak stall torque reaches 8.6 Nm across all supply voltages (208, 400, 480 V three-phase), and maximum continuous current is 12.5 A. Nominal output power is 900 W at 400 V and 480 V, dropping to 450 W at 208 V. Keep the continuous stall torque at 3.4 Nm for sustained holding. The 10-pole rotor gives a relatively high torque density. Radial force limits drop with speed: 730 N at 1000 rpm, 580 N at 2000 rpm, 460 N at 4000 rpm. Axial force is capped at 0.2 × Fr. Ensure the load overhung moment stays within these curves to avoid bearing damage.
Mounting and mechanical interface
Shaft diameter is 14 mm (0.6 in) with a 30 mm shaft length, untapped end. Flange size is 70 mm (2.8 in) with a centring collar depth of 2.5 mm. Housing IP65, shaft IP54. Integrated EMC filter reduces radiated emissions from the motor cables—mount the motor close to the drive to keep the filter effective.