SAR-ML51A
Single-Turn Absolute Encoder
Ultra-compact high-resolution absolute encoder
Provides 20-bit high resolution absolute with ultra-compact dimensions.
Features
World-leading compact size (□14 mm) optical absolute encoder.
Provides up to 20-bit high resolution.
Specifications
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| Model | SAR-ML51A | |
|---|---|---|
| Resolution | Single-turn | Max. 20 bit (1,048,576 positions/rev.) |
| Multi-turn signal | － | |
| Responsive revolution speed | With mains power | 6,000 min-1 |
| With backup battery | － | |
| Power source voltage | With mains power | 5 V DC (±10%) |
| With backup battery | － | |
| Current used | During normal operations | 65 mA (TYP) |
| Using external battery | － | |
| Operating temperature range | ‒20 to +95°C | |
| Moment of inertia for shaft | 0.02 × 10-7 kg·m2 | |
| Allowed rotational angular velocity | 1.0 × 105 rad/sec2 | |
| Communication protocol | A-format® | |
| Transmission standard | EIA standard RS-485 compliant | |
| Transmission method | NRZ half-duplex serial communications | |
| Baud rate | 2.5 Mbps | |
| Number of signal wires | 4 | |
| Memory access development space | 3.75k bit (240 × 16 bits) | |
| Temperature sensor | Supported | |
| Bus connectivity | Supported | |
| Bus connectivity options | Encoders can be connected for up to 8 axes. | |
| Dimensions | External diameter (⌀) | 14 mm |
| Height | 23 mm (TYP) | |
Dimensional Drawings
