Single-turn Absolute Encoder A/790
- Category: Encoder, Absolute Encoder, Single-turn Absolute Encoder, SENSORS
The A/790 Single-Turn Absolute Encoder addresses the need for precise positioning in harsh industrial environments where incremental sensors fail. Its robust design eliminates typical erratic signals, ensuring reliable readings even with severe vibrations or mechanical load fluctuations in heavy machinery.
The internal architecture integrates phototransistors and long-life LEDs for stable optical detection. It supports SSI, RS422, or push-pull output configurations, allowing direct integration with modern controllers without the need for additional external converters that complicate system wiring.
Constructed with an aluminum base and cover for efficient heat dissipation in continuous cycles. The stainless steel shaft supports radial and axial loads up to 5 kg, maintaining structural integrity under 5 kg impacts. Available in guemisa.es.
- Maximum resolution of 8192 (13 bits) for high angular precision.
- Flexible power supply between 5V and 30V depending on the selected electronic configuration.
- IP65 protection on outlet and resistance to oil, dust and ambient humidity.
- Bearing life of 1.5 x 10^9 turns under standard load.
Technical Frequently Asked Questions
What alignment precautions does the A/790 axle require?
The standard shaft is made of stainless steel with an h7 tolerance (Ø11 mm). Ensuring concentricity is crucial to avoid axial loads exceeding 5 kg, as this reduces bearing life. Mounting perpendicular to the flange plane is recommended, and external mechanical stress on the shaft should be avoided during installation.
What connectors and output options are available for the A/790?
The model supports multiple connectors depending on the resolution and code type chosen, including MS310A18-1P IP65, DB25P IP64 or Eml 121. Electronic options include RS422 parallel output, SSI, analog Push-Pull or voltage for flexible integration with standard industrial controllers.
What are the operating temperature limits of the A/790?
Standard operation is guaranteed between -20 and +85 °C, with storage possible from -30 to +85 °C. Heating to +75 °C takes 72 hours before degradation, allowing operation in demanding thermal environments without the need for additional active cooling.
How does the A/790 integrate with modern control systems?
The SSI interface enables direct serial communication with PLCs and motion controllers. Additionally, the analog output (current/voltage) converts the 10-bit resolution into proportional signals for legacy systems. The push-pull option provides a robust digital output compatible with standard TTL/CMOS inputs.
Properties
| Feature | Specification |
|---|---|
| Maximum Resolution | 1 to 12 bits (2 to 4096 positions) |
| Exit Codes | Gray, Binary, Excess, BCD or Custom |
| Power Supplies (Vcc) | 5 V ± 5%, 15 V ± 5%, 8 ÷ 24 V, 10 ÷ 30 V |
| Standard Shaft (Axle) | Stainless Steel Ø 10 h7 |
| Diameter Options | 8, 9.52, 12, 12.7 mm and others upon request |
| Bearing Life | 1.5 x 10^9 revolutions (at 1000 rpm with 1/4 max load) |
| Max. Continuous RPM | 6.000 / 3.000 / 8.000 |
| Starting Torque | 90 / 150 gcm |
| Weight | 750 g |
| Impact Resistance | 40 G x 11 ms |
| Vibration Resistance | 12 G (10 ÷ 2000 Hz) |
| Operating Temperature | -20 – +85 °C |
| Maximum Continuous RPM | 6.000 / 3.000 / 8.000 |
| Max. Radial/Axial Load | 5 Kg |
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