Speed and torque depend on supply voltage
The SH31003M11A1000: This SH3 servo motor delivers different speed and torque depending on the supply. At 400 V three-phase it produces 2000 rpm and 7 Nm nominal torque (1470 W continuous output); at 480 V three-phase it reaches 2400 rpm and 6.76 Nm (1700 W). On single-phase 230 V it runs 1000 rpm at 7.5 Nm, and on 115 V single-phase it runs 500 rpm at 7.8 Nm. The continuous power rating on the nameplate is 1500 W — the actual output available depends on the drive voltage and the duty cycle.
Absolute encoder — no homing needed
The motor is fitted with an absolute single-turn SinCos Hiperface encoder. On power-up the drive reads the absolute position directly — no homing or reference run is required. This saves cycle time on machines that power-cycle between batches or after an emergency stop. The single-turn resolution covers one mechanical revolution; for multi-turn applications a battery-backed multi-turn encoder would be needed.
IP65 with seal ring — natural convection cooling
The motor achieves IP65 at the shaft bushing when the optional shaft seal ring is fitted, and IP54 without it. The motor body itself is IP65. Cooling is by natural convection — no fan, so the thermal rating depends on the duty cycle and ambient temperature. In continuous full-load applications, ensure adequate airflow around the motor housing to avoid exceeding the 130 °C copper hot-spot limit.
Mounting and shaft details
The motor uses an international standard flange with a 100 mm flange size and a 95 mm centring collar. The shaft is 19 mm diameter with a parallel key, 40 mm shaft length, and 6 mm key width. Maximum radial force at the shaft is 1050 N at 1000 rpm, derating to 660 N at 4000 rpm. Maximum axial force is 160 N.