Technical Specifications:

• Motor Type: Permanent Magnet Synchronous Servo Motor (PMSM)
• Cooling Method: Natural Convection (IC410)
• Encoder Type: Single-Turn Absolute, Hiperface Interface
• Encoder Resolution: 128 periods/rev (131,072 counts/rev)
• Rated Voltage: 230 V AC (winding 012)
• Rated Speed: Up to 4,000 rpm
• Rated Torque: Approximately 2.0 Nm (continuous)
• Peak Torque: Approximately 8.0 Nm (short-term)
• Rated Power: Approximately 0.8 kW
• Insulation Class: F (155 °C)
• Protection Class: IP54 (with connector: IP65)
• Duty Cycle: S1 (Continuous)
• Shaft Diameter: 19 mm with keyway (DIN 6885-1)
• Shaft Type: Keyed, with encoder coupling flange
• Weight: Approximately 3.9 kg

Functional Features:

• Shaft-mounted absolute encoder provides direct mechanical position coupling
• No homing required after power loss
• Natural cooling sufficient for continuous rated operation
• High torque-to-inertia ratio for dynamic axis control

Performance Parameters:

• Maximum Continuous Torque: 2.0 Nm
• Maximum Peak Torque: 8.0 Nm (10× rated, < 1 s)
• Nominal Speed: 0 – 4,000 rpm
• Torque Constant (Kt): Approximately 0.48 Nm/A
• Back-EMF Constant (Ke): Approximately 0.48 V/(rad/s)
• Rotor Inertia (Jm): Approximately 0.00028 kg·m²
• Mechanical Time Constant (τm): Approximately 8 ms
• Electrical Time Constant (τe): Approximately 3 ms

Material Composition:

• Stator: Silicon Steel Laminations (0.5 mm, M330-50A)
• Rotor Magnets: NdFeB N42SH, high-coercivity grade
• Windings: Class F copper, polyimide-insulated
• Housing: Aluminum Die-Cast (ADC12)
• Shaft: Chrome-Plated Steel C45E (1.0503)
• Bearings: Sealed Deep Groove Ball Bearings, grease-lubricated for life
• Encoder Coupling: Aluminum, precision-machined

Structural Features:

• Front mounting flange with 4 × M6 bolt holes
• Shaft encoder with M23 connector on non-drive end
• Keyway shaft (DIN 6885-1), 19 mm diameter
• Cable gland M20 × 1.5 at drive end
• Smooth cylindrical body, painted or anodized finish

Working Principle:
Three-phase sinusoidal currents from the servo drive create a rotating stator field. The NdFeB rotor locks to this field synchronously. The shaft-mounted Hiperface encoder generates absolute position data encoded in Gray code, transmitted to the drive via differential RS-485 signals. The drive uses this data for real-time closed-loop position, velocity, and torque control.

Advantages:

• Direct shaft encoder coupling eliminates backlash in position feedback
• Single-turn absolute: instant position on power-up
• 0.8 kW output in compact 44 mm frame
• Robust construction for industrial duty

Applicable Industries:

• Machine Tool Spindle Drives
• Press Feed Axes
• Conveyor Drives
• Packaging Machines
• Plastic Injection Molding (clamping unit)
• Woodworking Machinery

Compatible Drives:

• BAUMULLER BM4621, BM4623, BM4661, BM4663
• BAUMULLER BM4700, BM4710, BM4720 Series

Installation Requirements:

• Mounting: Flange mount, 4 × M6 bolts, torque 5 Nm
• Shaft coupling: Rigid or flexible coupling, max 0.05 mm radial misalignment
• Encoder cable: Shielded, max length 10 m
• Ground: PE connection < 0.1 Ω

Usage Precautions:

• Do not apply axial loads exceeding 50 N on shaft
• Ensure encoder cable is routed away from power cables (min 100 mm separation)
• Ambient temperature: 0 – 40 °C (derate 1% per °C above 25 °C)
• Do not disassemble encoder coupling; it is factory-calibrated