Motor ratings and supply matching
The SH30702M11F1200: This SH3-series servo motor is a three-phase unit rated for 640 W continuous power, with nominal speed varying by supply voltage: 750 rpm at 115 V single phase, 1500 rpm at 230 V single phase, 3000 rpm at 400 V three phase, and 3600 rpm at 480 V three phase. The holding brake delivers 3 N.m (26.6 lbf.in) holding torque, and nominal torque ranges from 2.03 N.m to 2.2 N.m depending on the supply configuration — critical for sizing the load and confirming the drive's torque loop can hold position when power is removed. Peak stall torque reaches 7.6 N.m (67.3 lbf.in) across the 115–480 V three-phase range, and continuous stall torque is 2.04 N.m (18.06 lbf.in) — the motor can deliver short bursts for acceleration without exceeding thermal limits.
Feedback and environmental protection
The absolute single-turn SinCos Hiperface encoder provides position feedback without needing a homing cycle on power-up — the drive reads the exact rotor angle from the encoder's memory, which simplifies commissioning and reduces downtime after a power loss. Natural convection cooling (no fan) keeps the design simple and avoids debris buildup, but the thermal limit is set by the 130 °C copper hot-spot temperature — derate the duty cycle if ambient exceeds the standard operating range.
Mechanical integration and shaft details
The motor mounts on an international standard flange with a 70 mm (2.8 in) flange size, centring collar diameter 60 mm (2.4 in), and four mounting holes at 5.5 mm diameter — fits standard servo mounting patterns for direct coupling to a load. Shaft diameter is 11 mm (0.4 in) with a parallel key and 23 mm (0.9 in) shaft length — the keyed interface transmits torque without slipping, and the 4 mm key width matches common keyway broaching for pulleys or couplings.