Product Description:

The 63.SM.201-34CJ is a three-phase synchronous servo motor produced by KEB within the SM Synchronous Servo Motors series. It is intended to deliver controlled rotary motion for positioning and speed regulation tasks in automated machinery. Its IP65 housing allows installation in areas exposed to dust or water spray without additional enclosures. Self-cooling allows operation without external fans.

The motor’s electrical base values support continuous operation. A rated voltage of 330 V aligns with common DC-link levels in KEB inverters, while a rated current of 11.8 A establishes the thermal load that the stator can sustain during continuous duty. At the electrical frequency that produces the rated speed of 3000 rpm, the motor outputs 5.03 kW of mechanical power together with a shaft torque of 16 Nm. These ratings represent the steady-state operating point where copper losses, iron losses, and internal airflow remain in balance. The built-in PTC resistor monitors winding temperature so the drive can reduce current before insulation limits are reached, and the Heidenhain EnDat EQI 1329 encoder provides multi-turn feedback for high-resolution positioning without homing after power cycles.

For transient demands, the motor can exceed its continuous operating range. The shaft can deliver a peak holding capability of 22 Nm at standstill, and the phase conductors can momentarily carry 15.0 A before the temperature sensor intervenes. Dynamic behavior is supported by a back-EMF gradient of 125.9 V/1000 rpm, which allows the drive to maintain voltage headroom for rapid acceleration, and by a stator inductance of 9.2 mH that shapes current rise times and filters switching harmonics. A winding resistance of 0.74 Ω contributes to copper losses during rated and overload operation, completing the electrical profile used for drive matching and thermal modeling.