Single-Turn Absolute Encoder A/758S
- Category: Encoder, Absolute Encoder, Single-turn Absolute Encoder, SENSORS
In demanding industrial environments, positioning systems require an immediate, absolute reading after each power cycle to avoid downtime during homing. The A/758S Encoder eliminates the need for constant recalibration by maintaining the exact position even during power outages, ensuring operational continuity on critical production lines.
The technical solution integrates a programmable SSI interface up to 65,536 divisions per revolution (16 bits) and incremental Sine/Cosine outputs at 1024 positions. It supports clock frequencies of 500 kHz and allows for Gray or Binary code configurations, ensuring robust and accurate data transmission for modern controllers.
Constructed with an anodized aluminum metal housing in Ø58mm and a servo-mount connection, it supports radial and axial loads of up to 5 kg. Resistant to impacts of 2 kg and vibrations of 2 kg, it operates stably between -20 and +85°C. Available in guemisa.es.
- Programmable resolution up to 65536 divisions per revolution (16 bits).
- Ø58mm housing with servo-mount connection for quick integration.
- SSI interface and incremental Sin/Cos outputs to 1024 positions.
- Standard IP65 protection with IP66 option available upon request.
Technical Frequently Asked Questions
How does the multi-turn capability of the A/758S model differ from standard single-turn encoders?
The A/758S model is programmable up to 65,536 revolutions (multi-revolution) or single-revolution, offering a maximum physical resolution of 16 bits. This allows for applications that require counting complete revolutions without losing absolute position, unlike standard models limited to a single revolution.
What alignment precautions does the A/758S shaft require during installation?
The shaft has a nominal diameter of Ø6h7 (stainless steel available upon request). It is crucial to ensure perfect coaxial alignment to avoid radial or axial loads exceeding the maximum permissible 5 kg, which could compromise the service life of the internal bearings.
What connectors and output options are available for the A/758S?
The standard connector is a 10-pin MS310A18-1P IP65. Optional connectors include the MS310R18-1P IP66 or a 12-pin EML 121 connector. Outputs include preset SSI and RS422 for exchanging data in ASCII code up to 16384.
What are the operating limits for temperature and environmental protection?
Operation is certified between -20 and +85°C, with storage permitted up to -30 and +85°C. The housing offers standard IP65 protection against dust and water jets, with an IP66 variant available upon request for more demanding washdown or pressure environments.
How does the A/758S integrate with control systems via an SSI interface?
The transmission is synchronous with the clock signal, sending the position data starting from the most significant bit (MSB). The first discrete front of the clock stores the position in a shift register, allowing direct integration with controllers that support the SSI protocol.
Properties
| Feature | Specification |
|---|---|
| Main Application | Absolute Positioning Single/Multi-turn |
| VCC Power Supply | 10 ÷ 30V DC |
| Axis (Tree) | Ø 6 mm h7 |
| Weight | 350 g |
| Maximum Radial/Axial Load | 2 Kg |
| Maximum Continuous RPM | 4096 rpm (12 bits) |
| Impact Resistance | 50 G x 11 ms |
| Vibration Resistance | 12 G (10 – 2000 Hz) |
| Operating Temperature | -20 – +85 °C |
| Interface | SSI with preset / RS422 |
| IP Protection Housing Side | IP65 (Standard), IP66 (Optional) |
| Standard Connection | MS310A18-1P IP65 (10 pins) |
| Bearing Life | 1.5 × 10⁹ revolutions |
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