Single-turn Absolute Encoder A/990FS
- Category: Encoder, Absolute Encoder, Single-turn Absolute Encoder, SENSORS
The A/990FS Single-Turn Absolute Encoder addresses the need for precise positioning in demanding industrial environments where conventional sensors fail. Its robust architecture allows it to operate under severe vibrations and high mechanical loads without signal loss, ensuring continuous operation in heavy machinery.
The technical solution integrates an SSI fieldbus for stable digital communication and a resolution of 16 bits per revolution. The coupling, compatible with the 72 model and designed with a patented hollow star-shaped shaft, ensures high axial and radial compensation, maintaining accuracy even under critical misalignments.
Constructed with a stainless steel or aluminum housing, it withstands extreme temperatures between -40 and +85 °C. Standard IP65 protection and 30 G shock resistance ensure durability in harsh applications. Available in guemisa.es.
- Stable power supply between 10 and 30 V DC with reverse polarity protection.
- Bearing life >10⁵ at 1000 rev/min to 1000 rev/min.
- SSI interface compatible with RS422 field lines for external transmission.
- Discs made of unbreakable and durable EMC certified plastic.
Technical Frequently Asked Questions
What alignment precautions does the A/990FS axle require?
Although it features axial compensation of ±3 mm, it is recommended to align the hollow star shaft within radial limits of ±0.05 mm to prevent premature wear. Use precise fitting tools and verify the coupling tolerance before final assembly.
What connectors and output options are available for the A/990FS?
It is available with a standard SSI interface or SSI with preset configuration. Options such as Line Driver (RS422) can be added using code 'W' or surge protection 'X'. The connectors are 12-pin, available in axial or radial configuration depending on the setup.
What are the environmental operating limits of the A/990FS?
It operates between -40 and +85 °C in both operation and storage. It withstands a relative humidity of 98% without liquid condensation. The stainless steel or aluminum housing protects against corrosion in harsh environments.
How does the A/990FS integrate with external control systems?
The SSI output allows external control of the transmission clock. The clock frequency ranges from 100 kHz to 800 kHz for transmitting the angular position value from the MSB, ensuring seamless integration with modern PLCs.
What certifications and standards does the A/990FS meet?
The A/990FS 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 |
|---|---|
| Sensor Type | Absolute SSI |
| Power supply (Vcc) | 10 ÷ 30 V DC |
| Resolution | 13 to 16 bits (8192 to 65536 positions) |
| Exit Codes | Gray, Binary |
| Operating Temperature | -40 – +85 °C |
| Humidity | 98% (non-condensing) |
| Axis | Ø 6 mm / 8 / 9.52 / 10 mm Stainless Steel |
| IP Outgoing | IP65 (Standard) / IP66 (Sealed) |
| Weight | 1300g |
| Maximum Radial/Axial Load | 70/110 N |
| Impact Resistance | 30 G x 11 ms |
| Vibration Resistance | 10 G (10 – 1000 Hz) |
| Maximum Continuous RPM | 5.000 / 2.500 |
| Starting Torque | 65 / 115 gcm |
| Warehouse Temperature | -40 – +85 °C |
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