Motor sizing across supply voltages
The SH31403P01A2100 delivers 24.7 Nm nominal torque at 400 V three-phase, dropping to 12.9 Nm at 400 V three-phase and 9.1 Nm at 480 V three-phase — the torque derating follows the voltage-dependent current limit, not the motor's thermal capability. At 115 V single-phase, nominal torque is 24.7 Nm but nominal output power drops to 1940 W; at 400 V three-phase the same motor outputs 4050 W continuous. This means the same frame covers a wide application range, but the drive's DC bus voltage and the supply configuration determine the usable torque-speed envelope. The motor is rated for three-phase supply only — the single-phase figures reflect operation on a single-phase input drive that rectifies to a DC bus, not direct single-phase line connection. The peak stall torque of 90.2 Nm across the 115-480 V three-phase range gives headroom for acceleration transients without oversizing the frame.
Encoder and feedback for position loop closure
The absolute single-turn SinCos Hiperface encoder provides position feedback without a homing sequence on power-up — the drive reads the absolute position within one revolution from the encoder's memory. This eliminates the need for a reference run after each power cycle, saving cycle time in applications where the motor must resume position immediately. The torque constant of 1.58 Nm/A at 120 °C copper temperature and the back EMF constant of 105 V/krpm at 20 °C are the key parameters for drive commissioning: the drive's current loop gains and velocity feed-forward are tuned around these values. Stator resistance is 0.4 Ohm and inductance is 2.66 mH — these set the electrical time constant and the current regulator bandwidth.
Mechanical integration and environmental sealing
The motor mounts on an international standard flange with a 140 mm flange size and a 130 mm centring collar — this matches the IEC 72-1 frame size for direct coupling to standard gearboxes and linear actuators. The centring collar depth is 3.5 mm; the mounting holes are 11 mm diameter on the flange bolt circle. The smooth shaft is 24 mm diameter with a 50 mm shaft length — no keyway, so the coupling must transmit torque through a clamping or friction fit. The overall length is 327.5 mm from the mounting flange face to the rear of the encoder housing. Cooling is by natural convection only; no forced air or liquid cooling circuit is needed, but the motor must be mounted with adequate clearance for free air flow around the finned housing.
Sourcing and lifecycle — active production
The electrical connection uses a rotatable right-angled connector — this allows the cable exit orientation to be adjusted in 90° increments after mounting, simplifying cable routing in tight cabinets or on moving axes. The connector is part of the motor assembly and is not field-replaceable without disassembly.