Single-turn Absolute Encoder A/958S
- Category: Encoder, Absolute Encoder, Single-turn Absolute Encoder, SENSORS
In industrial environments with electromagnetic interference, conventional analog sensors suffer from reading errors and loss of synchronization. The A/958S Absolute Encoder solves this critical problem by providing a unique and accurate position without the need for recounting after a power outage, ensuring operational continuity in heavy machinery.
The technical solution integrates an IR photodiode array ASIC and long-life LEDs (100,000 hours) to ensure stable readings under voltages of 10 to 30 VDC. The parallel or push-pull output interface allows for wired transmission of up to 16 bits, offering superior resolution that reduces quantization error in high-precision control systems.
Built with SMD technology and sealed bearings for a service life of >10⁵ at 1000 rpm, it withstands radial loads up to 40/110 N and extreme mechanical resistance. Available in aluminum or stainless steel, this device is ideal for machinery exposed to 10 G vibrations and is available in guemisa.es.
- Maximum resolution of 16 bits with connection cable for high angular accuracy.
- Flexible power supply between 10 and 30 VDC compatible with standard industrial systems.
- Robust construction with sealed bearings guaranteeing a service life of >10⁵ at 1000 rpm.
- Certified mechanical resistance to 30 G impacts and 10 G vibrations in the frequency range.
Technical Frequently Asked Questions
What alignment precautions does the encoder shaft require during assembly?
To ensure the service life of the sealed bearings and prevent reading errors, it is crucial to maintain perfect coaxial alignment between the shaft and the encoder. The model supports radial loads up to 40/110 N, but excessive misalignment can cause premature friction on the available Ø6mm or Ø10mm shafts.
What connectors and output options are available for the A/958S?
The device offers configurable interfaces including (PP) Parallel, (P1) Parallel with preset, and 20 mA Push-pull. The choice depends on the electrical environment: Push-pull is preferable in environments with high electromagnetic noise, while the parallel output allows for higher resolutions up to 16 bits via cable.
What are the environmental conditions and operating limits of the Encoder?
The encoder operates within a temperature range of -30 to +70°C, with storage permitted up to +85°C. The maximum relative humidity is 981% TP3T, with no liquid state. The housing can be made of aluminum or stainless steel (option Q), allowing its use in washable or corrosive environments.
How does the A/958S integrate with existing control systems?
Its maximum current consumption ranges from 100 to 400 mA depending on the number of bits, allowing for direct integration into standard power supplies. The 20 mA push-pull output provides noise immunity for connection to PLCs or controllers without the need for complex additional isolation.
What certifications and standards does the A/958S meet?
The A/958S is manufactured according to ISO 9001 standards and bears the CE marking and declaration of conformity. It complies with EMC directives according to EN 61000-6-2 and EN 61000-6-4 for electromagnetically demanding environments. Its IP protection rating is certified according to IEC EN 60529, EN 60529, and IEC 529, and it comes with a 2-year warranty from the date of delivery.
Properties
| Feature | Specification |
|---|---|
| Power supply (Vcc) | 10÷30 VDC (Standard) |
| Maximum Frequency | 200 kHz |
| Operating Temperature | -30 to +70 °C |
| Warehouse Temperature | -40 to +85 °C |
| Humidity | 98% (not in liquid state) |
| Custody / Weight | 200g |
| Axle / Shaft | Ø 6 mm / 10 mm Stainless Steel |
| IP protection | IP65 |
| Bearing Life | >10^5 ha 1000 rpm |
| Resolution | 13 to 16 bits (8192 to 65536 positions) |
| Maximum Continuous RPM | 6.000 / 3.000 |
| Starting Torque | 50 / 90 gcm |
| Max. Radial/Axial Load | 40/110 N |
| Impact Resistance | 30 G x 11 ms |
| Vibration Resistance | 10 G (10 – 1000 Hz) |
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