P50B08050DXSS1 Sanyo Denki
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The Sanyo Denki P50B08050DXSS1 is a brushless servo motor in the P5 Super BL Servo Motors series with IP55 protection and a mass of 3.0 kg. It delivers a rated output of 500 W, a rated speed of 3000 min-1, and a rated torque of 1.589 N·m. The motor features a wiring-saved incremental encoder with 2000 pulses per revolution and a flange size of 80 or 86 mm.
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Product Description:
The P50B08050DXSS1 is a brushless servo motor manufactured by Sanyo Denki for the P5 Super BL Servo Motors series. As a compact, 80 mm-class rotary actuator, it delivers closed-loop speed and torque control to positioning tables, pick-and-place heads, and other motion axes that demand repeatable performance. Its medium-power rating allows machine builders to match mechanical loads while maintaining responsive acceleration and deceleration profiles. Electronic commutation controls the permanent-magnet rotor without the physical contacts used in brushed motors, reducing wear during frequent starts and stops.
Its continuous output is 500 W, produced at a rated speed of 3000 rpm, where the shaft delivers 1.589 N·m of torque with a phase current of 3.9 A RMS. The torque constant of 0.473 N·m/A RMS indicates the relationship between drive current and developed torque, simplifying current-loop tuning. Power density is supported by a power rate of 21.8 kW/s. Electrical behavior includes a phase resistance of 0.94 Ω and an electrical time constant of 5.2 ms, enabling a quick current rise without excessive heat. With a mechanical time constant of 1.5 ms and a rotor inertia of 1.161 × 10⁻⁴ kg·m², the motor can follow high-bandwidth command changes while limiting overshoot.
A reduced-wiring incremental encoder provides 2000 P/R feedback, decreasing cable requirements while supplying adequate resolution for most servo loops. Peak shaft speed reaches 4500 rpm, providing overhead for brief feed-rate surges, while the motor can produce an instantaneous stall torque of 5.88 N·m for transient loading. The aluminum frame has an IP55 rating, providing protection against dust and low-pressure water jets. Its mass of 3.0 kg reduces the load added to a gantry or robot arm. Flange options of 80 mm or 86 mm maintain compatibility with common gearheads, while the brushless design eliminates commutator wear. The motor is supplied without a holding brake, so external clamping must secure vertical loads when power is removed.
