Single-turn Absolute Encoder A/958SS
- Category: Encoder, Absolute Encoder, Single-turn Absolute Encoder, SENSORS
In demanding industrial environments, the need to maintain precise absolute positioning without counting errors after power outages is critical. This A/958SS Single-Turn Absolute Encoder solves the problem of data loss in SSI systems, ensuring that the controller always knows the exact shaft position upon power restoration.
The technical solution is based on a robust SSI interface that supports RS422 transmission, enabling resolutions of up to 16 bits per revolution. Its IR photodiode array and LED light source ensure reliable reading with a maximum power consumption of 1W (SL), optimizing energy efficiency in continuous control applications.
Built with SMD technology and available in stainless steel or aluminum, it withstands extreme temperatures from -40 to +85 °C. Its compact 23-inch design and IP65 protection make it suitable for long-lasting installations on heavy machinery. guemisa.es.
- SSI interface with optional preset (S4) for reset functions.
- Lifespan of ball bearings greater than 10^5 hours at 1000 rev/m.
- Impact resistance of 30 G and vibration of 10 G (10÷1000Hz).
- EMC certified according to EN 61000-6-2 and EN 61000-6-4.
Technical Frequently Asked Questions
What is the difference in resolution between the single-turn model and the multi-turn options?
The standard 958SS model offers 16-bit resolution per revolution. However, through custom options, multi-revolution configurations with up to 16 bits for 16,384 revolutions are available, enabling much more extensive position tracking in applications requiring multiple full shaft revolutions.
What precautions are required when mounting the Ø6mm shaft?
Installation is performed using a servo-mount system with clamps or front screws, designed for general industrial use. Precise alignment of the stainless steel shaft with the drive machinery is crucial to prevent excessive axial or radial loads that could compromise the service life of the sealed bearings.
What types of connections are available for the SSI interface?
The encoder offers 12-pin connectors in both axial and radial configurations, both with IP65 protection and 1-meter cabling. Custom options such as RS422 line controllers or all-stainless-steel versions (Q code) for specific corrosive environments are available upon request from the ELCIS catalog.
What are the operating limits for temperature and humidity?
The device operates stably between -40 and +85 °C, both during operation and in storage. It withstands a relative humidity of 98% without liquid state and is EMC certified according to EN 61000-6-2 and EN 61000-6-4, guaranteeing reliable performance even under the complex electromagnetic conditions of modern industry.
How does it integrate with external control systems?
The SSI interface allows data output to be controlled by an external clock, transmitting the position value stored from the MSB. The transmission standard is RS422 with a clock frequency between 100 kHz and 800 kHz, facilitating direct integration into automation systems that require high-speed, precise synchronization.
Properties
| Feature | Specification |
|---|---|
| Vcc Power Supply | 10÷30 VDC |
| LSB Step Frequency | 800 kHz |
| Operating Temperature | -40 – +85 °C |
| Dwelling | Stainless Steel / Aluminum |
| Weight | 200g |
| Axis | Ø 6 mm / 10 mm Stainless Steel |
| IP Output Side | IP65 |
| Maximum Continuous RPM | 6.000 / 3.000 |
| Starting Torque | 50 / 90 gcm |
| Resolution | 13 to 16 bits (8192 to 65536 positions) |
| Max. Radial/Axial Load | 40/110 N |
| Bearing Life | 1.5 × 10⁹ revolutions |
| Impact Resistance | 30 G x 11 ms |
| Vibration Resistance | 10 G (10 – 1000 Hz) |
| Warehouse Temperature | -40 – +85 °C |
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