Product Description:

The M-803-A-A9-B3-024 is a brushless servo motor produced by Kollmorgen within the M Goldline Servo Motors series. Engineered for closed-loop axes in industrial automation, it converts electrical energy into tightly regulated rotary motion for gantries, packaging stations, and process drives. It is suited for applications that require repeatable positioning, controlled acceleration, and stable holding at standstill. An embedded thermostat and an electromagnetic brake are included so the motor can protect its windings from overheating and hold position when power is removed.

The motor delivers a continuous stall torque of 42.0 N-m, giving machinery a stable force margin at zero speed, while its peak stall capability reaches 94.2 N-m for brief acceleration or shock loads. During steady motion, the shaft can run up to 2000 rpm, and the motor can deliver a shaft output of 7.9 kW at that speed. Dynamic response is influenced by a rotor inertia of 352.0 ×10⁻⁴ kg-m², a value that balances fast indexing with drivetrain damping. The frame is shipped without mating plugs, so compatible connectors are required for the power, feedback, and brake leads.

The integrated brake is energized from a 24 VDC source and applies 48.0 N-m of holding torque, with a reflected inertia of 1.27 ×10⁻⁴ kg-m² so axis stiffness is maintained without adding significant load to the drive. Position feedback comes from a resolver, enabling analog sine-cosine angle detection that tolerates high temperatures and electrical noise. Overtemperature protection is provided by a thermostat that opens near 170 °C with a ±5 °C tolerance, resets at 132 °C ±5 °C, and is rated for 4 A at 120 VAC to interface directly with motor contactors. The thermostat circuit can be used with external control logic to interrupt operation if the winding temperature rises beyond its switching point.