Power and speed across supply voltages
The SH31402P01A1200: This SH3 servo motor delivers rated speed and torque that shift with the supply voltage — a detail that matters when the same motor part is specified across different regions or machine variants. At 400 V three-phase, nominal speed is 3000 rpm with 108.9 lbf·in (12.3 N·m) of torque. Plug it into 480 V three-phase and the speed climbs to 3600 rpm, but torque drops to 85.9 lbf·in (9.7 N·m). Continuous power output stays close across the three-phase range: 3860 W at 400 V, 3660 W at 480 V. The continuous stall torque is 172.6 lbf·in (19.5 N·m) regardless of three-phase voltage, with a continuous stall current of 13.2 A. Peak stall torque hits 531.9 lbf·in (60.1 N·m), useful for short-duration acceleration or overcoming static friction.
Encoder, feedback, and integration fit
The absolute single-turn SinCos Hiperface encoder gives position feedback on power-up without a homing routine — the controller reads the shaft angle directly. This cuts commissioning time on multi-axis machines where each axis would otherwise need a reference move. No holding brake is fitted on this variant. If the load must hold position with power off, a separate brake resistor or external holding brake on the axis is needed. The smooth shaft (no keyway) means the coupling or pulley is secured by a clamping mechanism — confirm the shaft diameter of 24 mm and length of 50 mm match the mating hub. IP65 on the motor body and shaft bushing, IP67 on the housing.
Electrical parameters for drive tuning
Back EMF constant is 101 V/krpm at 20 °C, and the torque constant is 1.47 N·m/A at 120 °C copper temperature. The maximum continuous current is 44.1 A — the drive must be sized to deliver this without saturating the power stage.