Product Description:

The KA511JS0 is a DC brush servo motor manufactured by Sanyo Denki for the K SANMOTION Servo Motors series. With a 54 mm square mounting flange and an integrated electromagnetic brake, it is intended for compact positioning axes found in electronics assembly, laboratory automation, and light conveyor sections. In these roles, the motor translates armature current commands from a drive into precise shaft rotation, delivering the controlled torque needed to keep feedback loops stable and workpieces synchronized with upstream process signals.

The motor has a rated mechanical output of 110 W. At that load, the shaft turns at 3000 rpm while producing a steady torque of 0.35 N·m. Supplying this operating point requires the drive to deliver 75 VDC to the armature at a current of 2.0 A; these electrical values help with drive sizing and cable selection. A winding resistance of 4.8 Ω limits inrush and helps the drive regulate current. The housing has a mass of 1.62 kg, which contributes to thermal capacity and delays temperature rise during extended operating cycles. For holding applications, the brake coil uses 90 VDC to release the load and automatically reengages when power is removed.

During acceleration, the shaft can withstand a peak stall torque of 3.4 N·m, while a continuous stall torque of 0.42 N·m applies when movement is blocked and cooling is limited. A torque constant of 0.20 N·m/A links commanded current to produced torque, enabling fine control in low-speed operating ranges. The rotor has an inertia of 0.37 × 10⁻⁴ kg·m², supporting quick speed changes in compact motion systems. An armature inductance of 3.0 mH smooths commutator ripple and supports current stability during rapid command changes. The brake supplies 0.29 N·m of static holding torque, helping vertical or tensioned loads remain secure during emergency stops or when drive power is unavailable.