Motor ratings that change with the supply voltage
The SH31002P1BF4100 is a three-phase servo motor from the SH3 series, but its output depends on what voltage it sees. At 400 V three-phase it delivers 1930 W continuous power and 4000 rpm nominal speed; at 480 V three-phase the speed rises to 4800 rpm at the same 1930 W power. On a 230 V single-phase supply the motor produces 1090 W at 2000 rpm — a useful fallback for lower-power lines or retrofit into single-phase cabinets. Nominal torque also shifts with voltage: 5.2 N.m at 230 V, 4.6 N.m at 400 V, 4.4 N.m at 480 V. The peak stall torque, however, holds at 18.3 N.m across the full 115...480 V three-phase range — the overload ceiling for acceleration and emergency stops is consistent regardless of which three-phase supply the line provides.
Built-in holding brake and single-cable feedback
The integrated holding brake delivers 9 N.m holding torque and requires 12 W pull-in power to release. This means the load stays put when the drive is off or in a safety stop — no external brake resistor or mechanical lock needed. The brake is wired through the motor connector, so the cable count stays the same as a non-brake motor. The absolute multiturn Hiperface DSL encoder runs feedback and power over a single cable — no separate encoder line to route, no battery-backed multiturn counter to maintain. The encoder type is baked into the motor nameplate; the drive auto-detects it on power-up if the drive supports Hiperface DSL.
IP65 washdown rating and natural convection cooling
Both the motor body and the shaft bushing carry IP65 per IEC 60034-5, so the motor withstands direct hose-down in food, beverage, and wet-process environments. The shaft bushing seal is the wet-end barrier — keep the connector mating face clean and the O-ring seated. Cooling is natural convection — no fan, no forced air. The continuous stall torque of 5.8 N.m across the three-phase range is the thermal limit at zero speed; above that, the motor relies on the mounting surface and ambient airflow to shed heat. In a confined cabinet or high-ambient line, derate the continuous torque or add a blower.
Mechanical interface and load limits
The motor flange is 100 mm (3.9 in) — the standard IEC frame size that mates with the matching gearbox or machine interface. The shaft is 19 mm diameter with a 40 mm length and a parallel key, so coupling or pulley fit follows the keyway dimensions. Overall length is 235.5 mm, which sets the envelope for machine integration and cable routing.
Electrical parameters for drive sizing
Maximum RMS current is 17.1 A — this sets the drive's continuous current rating and the cable cross-section. The torque constant is 1.21 N.m/A at 120 °C, so the drive must supply 4.3 A to hold the continuous stall torque of 5.8 N.m at operating temperature. The back EMF constant is 77 V/krpm at 20 °C; at 4000 rpm the motor generates 308 V back EMF, so the drive DC bus must exceed this plus the IR drop in the stator. Stator inductance is 13.5 mH and resistance is 2.4 Ohm, giving an electrical time constant of about 5.6 ms. This limits the current rise rate and sets the drive's current-loop bandwidth — a drive with a low PWM frequency or slow current loop may struggle to track fast torque commands. The motor has 4 poles, so the electrical frequency at 4000 rpm is 133 Hz.