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BAUMÜLLER BM4545-SI1-01M 00
Model Code Breakdown:
- BM4 = Baumüller Servo Motor Series 4
- 54 = Frame Size 54 (Stator Outer Diameter Approximately 140 mm)
- 5 = Stack Length Variant 5 (Medium Length)
- S = Synchronous Servo Motor
- I = Incremental Encoder Interface
- 1 = Variant Code 1
- 01M = Winding Code (High Torque Variant)
- 00 = Standard Configuration
Detailed content
Technical Specifications:
| Parameter | Value |
|---|---|
| Rated Continuous Torque (M0) | 4.5 Nm |
| Peak Torque (Mmax) | 13.5 Nm |
| Rated Speed (nN) | 3000 RPM |
| Maximum Speed (nmax) | 4500 RPM |
| Rated Power (PN) | 1.4 kW |
| Peak Power (Pmax) | 4.2 kW |
| Rated Voltage (UN) | 230 V AC / 48 V DC |
| Rated Current (IN) | 8.0 A |
| Peak Current (Imax) | 24 A |
| Moment of Inertia (Jrotor) | 0.35 kg·cm² |
| Weight | Approximately 4.2 kg |
| Protection Class | IP65 |
| Insulation Class | Class F (155°C) |
Encoder Specifications:
- Type: Incremental Optical Encoder
- Resolution: 2500 Pulses Per Revolution (PPR) / 10000 Edges (Quadrature ×4)
- Output Signal: HTL (Line Driver), 5 V DC Supply
- Maximum Frequency Response: 500 kHz
Functional Features:
- High Dynamic Response — Wide speed range with constant torque up to rated speed
- Optimized Winding Configuration (01M) — Maximum torque per ampere ratio
- Low Acoustic Noise — Skewed stator slots reduce harmonic noise emissions below 55 dB(A)
- Integrated Thermal Sensor (KTY84) — Direct winding temperature monitoring
- High Overload Capacity — 300% peak torque for short-duration dynamic loads
- Robust Mechanical Design — Suitable for continuous duty (S1) and intermittent duty (S3) operation
Structure & Material Composition:
- Stator: Grain-Oriented Silicon Steel Laminations (0.35 mm Thickness)
- Rotor: NdFeB Permanent Magnets, Grade N42UH (High Coercivity)
- Housing: Aluminum Alloy Die-Cast (ADC12), Black Anodized
- Shaft: Hardened Stainless Steel (1.4310), Keyway per DIN 6885
- Bearings: Angular Contact Ball Bearings (Preloaded, Sealed)
- Connector: M23 Multi-Pin Connector (12-Pin, IP67)
Working Principle:
Three-phase sinusoidal currents are supplied to the stator windings by the Baumüller servo drive, creating a rotating magnetic field. The permanent magnet rotor locks to this field and rotates synchronously. The incremental encoder delivers position and velocity data to the drive controller, which executes Field Oriented Control (FOC) algorithms to independently regulate torque and flux components, achieving high-precision motion control with minimal torque ripple.
Applicable Industries:
- Machine Tool Axes (Feed Drives)
- Injection Molding Machines
- Press Machines
- Conveyor Systems
- Woodworking Machinery
- Metal Forming Equipment
Installation Requirements:
- Mounting: Flange Mount (B5) with 4 Mounting Holes
- Ambient Temperature: -10°C to +40°C
- Cooling: Self-Ventilated (IC01) up to rated speed; Forced Cooling (IC416) above rated speed
- Shaft Coupling: Flexible Coupling Recommended (Jaw or Bellows Type)
- Cable Entry: M23 Connector, IP67 Rated
Usage Precautions:
- Do not operate without encoder connection — open-loop operation will cause drive fault
- Maximum ambient temperature at rated load: 40°C; derate by 1% per °C above 40°C
- Bearing lifetime: 20,000 hours at rated speed (L10 life)
- Do not apply radial forces exceeding 200 N at mid-shaft
