Torque and power profile — what the ratings deliver
The MH31003P02F2200: Rated for 3270 W continuous power at 4000 rpm nominal speed, this three-phase servo motor delivers a continuous stall torque of 9 N·m (79.7 lbf·in) across the 115–480 V range. The peak stall torque reaches 27 N·m (239.0 lbf·in) — that's the short-duration burst available for acceleration or overcoming load inertia before the drive current limit kicks in. The nominal torque varies with the drive voltage and phase configuration: at 400 V three-phase it's 6.8 N·m (60.2 lbf·in), while at 115 V three-phase it's 8.45 N·m (74.79 lbf·in). The holding brake adds 9 N·m of holding torque — enough to lock the shaft against gravity loads in a vertical-axis application.
Encoder, feedback, and integration constraints
Fitted with a Multiturn SinCos Hiperface encoder — this is the absolute feedback type that tracks position through power cycles, eliminating the need for a homing routine on restart. The rotatable right-angled connectors let the cable exit point be oriented to fit tight cable-tray routing or panel gland plates. The smooth shaft (no keyway) means the load coupling must use a clamping or friction-based method; confirm the hub bore tolerance against the 19 mm shaft diameter. Maximum radial force on the shaft drops from 1050 N at 1000 rpm to 610 N at 5000 rpm — the bearing life is governed by the radial load at the operating speed, not just the static rating. The 100 mm flange size and 95 mm centring collar match the standard IEC mounting pattern for this frame class.
Electrical parameters for drive matching
Stator resistance is 1.08 Ω and inductance is 5.23 mH — these set the electrical time constant and influence the drive's current-loop tuning. The torque constant is 1.17 N·m/A at 120 °C copper temperature, and the back-EMF constant is 77.95 V/krpm, which determines the bus voltage headroom needed at top speed. Maximum continuous current (Irms) is 26.71 A, with a 3-second peak of the same value — the peak-to-continuous ratio is 1:1, so short overloads above the continuous rating are not available from this motor. The brake pull-in power is 18 W; factor this into the 24 VDC brake supply sizing.