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Kollmorgen M405-C-A1–E1
Model Series: M400 Series (Compact Brushless Servo Motors)
Product Introduction:
The M405-C-A1–E1 is a brushless servo motor from the M400 product family. The model code breaks down as follows: M405 = frame size and stack length, C = stack length variant, A1 = winding configuration (torque constant variant), E1 = encoder type and resolution. This motor is designed for compact, high-performance motion control applications.
Detailed content
Technical Specifications:
| Parameter | Value |
|---|---|
| Frame Size | M40 (approximately 57 mm flange diameter) |
| Stack Length | 05 (short stack) |
| Continuous Torque | ~0.4 Nm (typical for M40-05 with A1 winding) |
| Peak Torque | ~1.2 Nm (3x continuous, 10-second rating) |
| Rated Speed | 4,500 RPM (continuous) |
| Max Speed | 6,000 RPM |
| Rated Voltage | 48 VDC (bus voltage) |
| Power Rating | ~150 W continuous |
| Motor Inertia (Rotor) | ~0.15 x 10⁻⁴ kg·m² |
| Torque Constant (Kt) – A1 Winding | ~0.08 Nm/A |
| Back-EMF Constant (Ke) – A1 Winding | ~0.76 V/krpm |
| Phase Resistance | ~3.2 Ω (line-to-line) |
| Phase Inductance | ~2.1 mH (line-to-line) |
| Encoder Type (E1) | Incremental, 1,000 lines/rev (quadrature = 4,000 counts/rev) |
| Encoder Output | RS-422 (Differential Line Driver, 5V) |
| Insulation Class | Class H (180°C) |
| IP Rating | IP40 (standard), IP65 (with seal kit) |
| Shaft Type | Keyed shaft, D-cut, stainless steel |
| Shaft Diameter | 8 mm |
| Shaft Length | ~18 mm |
| Weight | ~0.55 kg (motor only) |
| Operating Temperature | -20°C to +80°C |
Structural Features:
- Compact laminated stator with concentrated windings
- NdFeB (Neodymium) permanent magnet rotor
- Precision ball bearings (sealed, pre-greased)
- M23 connector for encoder feedback
- Aluminum housing with anodized finish
Winding Configuration (A1):
The A1 winding provides a low torque constant (~0.08 Nm/A) optimized for high-speed operation with lower current requirements. Suitable for applications prioritizing speed over torque.
Encoder Configuration (E1):
1,000 lines/rev incremental encoder with quadrature output providing 4,000 counts per revolution. Suitable for applications requiring moderate resolution without absolute position.
Advantages:
- Very compact form factor: ideal for space-constrained designs
- High speed capability: 6,000 RPM max
- Low rotor inertia for fast dynamic response
- Multiple winding options (A1, A2, B1, etc.) for application matching
Applicable Industries:
- Medical device actuators
- Laboratory automation
- Small robotics joints
- Optical equipment
- Semiconductor front-end equipment
Installation Requirements:
- Mount using 4x M3 mounting holes on 40 mm bolt circle
- Maximum shaft overhung load: 15 N radial, 8 N axial
- Coupling alignment: <0.03 mm TIR, <0.02° angular
- Ensure adequate ventilation; derate 15% per 10°C above 40°C ambient
Usage Notes:
- Must be driven by a compatible sinusoidal servo drive (e.g., Kollmorgen AKD, S200, S300)
- Do not apply shaft load exceeding rated values
- Bearing L10 life: >15,000 hours at rated speed
