Technical Description: Nidec Unimotor HD 095U3C300CACAA
The 095U3C300CACAA is a high-dynamic (HD) AC brushless servo motor from the Unimotor series by Nidec (Control Techniques). Specifically designed for applications requiring extreme acceleration and deceleration, the HD series features a low-inertia rotor and high torque density. This motor is a critical component for high-speed pick-and-place robotics, labeling machines, and automated flight simulators where precise motion and instant response are the primary requirements.
Precision Engineering and High Torque Density
The part number 095U3C300CACAA identifies several key technical specifications. It features a 95mm frame size and is wound for 400V operation (U) with a rated speed of 3000 RPM. The motor is equipped with an integrated 24V DC parking brake (C), a keyed shaft (A), and high-resolution incremental encoder feedback (C). By utilizing high-grade permanent magnets, this motor achieves an exceptional torque-to-inertia ratio, allowing it to respond to control commands with millimetric accuracy.
Key Characteristics
- Part Number: 095U3C300CACAA.
- Frame Size: 95 mm.
- Rated Speed: 3000 RPM.
- Voltage: 400 V Class (U-winding).
- Brake: Integrated 24V DC Parking Brake (C).
- Shaft Type: Keyed shaft (A).
- Feedback: Incremental Encoder (C).
- Connectors: Standard vertical power and signal connectors.
- Inertia: Low-inertia design (HD series).
Industrial Versatility and System Reliability
The 095U3C300CACAA is built for 24/7 industrial duty. Its high-grade stator insulation ensures thermal stability even during frequent high-torque transients. The motor’s compact footprint allows it to be integrated into tight robotic joints or crowded machinery. Its compatibility with the entire Nidec drive ecosystem (Digitax ST or Unidrive M) ensures a seamless «plug-and-play» experience for engineers, with motor parameters easily accessible via the drive’s autotune functions.
| Category | Specification |
| Protection Rating | IP65 (excluding shaft) |
| Mass | Approx. 5.5 kg |
| Standard Compliance | CE, UL Recognized, RoHS |
Maintenance Insights
This motor is essentially maintenance-free. For high-vibration applications, ensure the motor is correctly aligned with the load to prevent premature bearing wear. Periodically check the 24V brake supply to ensure it is stable and not causing accidental dragging during high-speed operation.
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