Technical Specifications:

• Motor Type: Permanent Magnet Synchronous Servo Motor (PMSM)
• Cooling Method: Forced Air (IC411) — Integral Fan on Non-Drive End
• Encoder Interface: Hiperface (EnDat 2.1 compatible single-turn absolute)
• Encoder Resolution: 128 sine periods per revolution (131,072 counts/rev)
• Rated Voltage: 230 V AC (winding 012)
• Rated Speed: Up to 4,500 rpm (depending on winding)
• Rated Torque: Approximately 1.2 Nm (continuous)
• Peak Torque: Approximately 4.8 Nm (short-term overload)
• Rated Power: Approximately 0.4 kW
• Insulation Class: F (155 °C)
• Protection Class: IP65 (with connector) / IP54 (without connector)
• Duty Cycle: S1 (Continuous Operation)
• Shaft Diameter: 14 mm with keyway (DIN 6885-1)
• Shaft Extension: Keyed shaft, cylindrical
• Weight: Approximately 2.8 kg

Functional Features:

• Immediate position availability after power-on due to absolute encoder
• Forced air cooling allows sustained high-torque output at low speeds
• High dynamic response suitable for rapid acceleration/deceleration cycles
• Compact form factor for space-constrained installations

Performance Parameters:

• Maximum Continuous Torque: 1.2 Nm
• Maximum Peak Torque: 4.8 Nm (10× rated for < 1 s)
• Nominal Speed Range: 0 – 4,500 rpm
• Torque Constant (Kt): Approximately 0.27 Nm/A
• Back-EMF Constant (Ke): Approximately 0.27 V/(rad/s)
• Rotor Inertia (Jm): Approximately 0.00012 kg·m²
• Mechanical Time Constant (τm): Approximately 5 ms
• Electrical Time Constant (τe): Approximately 2 ms

Material Composition:

• Stator Core: Silicon Steel Laminations (M330-50A or equivalent), 0.5 mm thickness
• Rotor Magnets: High-Coercivity Neodymium-Iron-Boron (NdFeB), N42SH grade
• Windings: Copper (Class F insulation, polyimide-coated)
• Housing: Aluminum Die-Cast Alloy (ADC12), anodized or painted
• Shaft: Chrome-Plated Steel (C45E / 1.0503)
• Bearings: Deep Groove Ball Bearings (SKF / FAG equivalent), greased for lifetime
• Fan: Glass-Fiber Reinforced Polyamide (PA66-GF30)

Structural Features:

• Cylindrical housing with integral mounting flange
• Four mounting bolt holes on front flange (M5 thread)
• Keyed shaft with axial clamping capability
• Cable gland entry at drive end (M20 × 1.5)
• Encoder connector at non-drive end (M23, 12-pin)
• Integral cooling fan with radial blades on non-drive end shaft extension

Working Principle:
The motor operates on the principle of a permanent magnet synchronous machine. The rotor carries high-energy NdFeB magnets creating a constant magnetic field. The stator windings, energized by a three-phase sinusoidal current from the servo drive, generate a rotating magnetic field. The interaction between the stator field and the rotor magnets produces torque. The single-turn absolute encoder mounted on the shaft provides real-time angular position data to the drive controller, enabling closed-loop servo control with zero-position loss on power-down.

Advantages:

• Forced air cooling enables 30% higher continuous torque compared to naturally cooled equivalents
• Absolute encoder eliminates homing sequence, reducing cycle time
• High power density: 0.4 kW in a 44 mm frame
• Low rotor inertia for fast dynamic response
• IP65 protection for harsh industrial environments

Applicable Industries:

• Packaging Machinery
• Printing & Converting Equipment
• Textile Machinery
• Material Handling & Conveyor Systems
• CNC Machine Axes (small format)
• Robot Joints (light-duty)
• Semiconductor Handling Equipment

Compatible Drives:

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

Installation Requirements:

• Mounting orientation: Any (360°), horizontal or vertical
• Mounting bolts: 4 × M5, torque 2.5 Nm
• Shaft coupling: Flexible coupling recommended, max misalignment 0.1 mm radial / 0.1° angular
• Cable bending radius: Minimum 5× cable diameter at gland entry
• Ground connection: Dedicated PE terminal on connector, resistance < 0.1 Ω

Usage Precautions:

• Do not exceed rated voltage by more than 10%
• Ensure adequate ventilation around fan intake; minimum 50 mm clearance
• Do not operate without encoder connector when using closed-loop control
• Bearing grease is lifetime-filled; do not re-grease
• Maximum ambient temperature: 40 °C (derate above 25 °C)