Single-turn Absolute Encoder A/380

Housing Ø80 mm | Shaft Ø 6 mm / 9.52 / 10 / 11 / 12 mm Stainless Steel | Operating Temp. 0 – +70 °C | Resolution 2 to 13 bits (4 to 8192 positions) | Max. Load 5 Kg | Max. Frequency 50 kHz | Weight 650 g | Vibration 12 G (10 – 2000 Hz) | Impacts 50 G x 11 ms | Power Supply 5V to 30V | Protection IP65/IP66

Harsh industrial environments demand precise positioning without failure due to external interference. The A/380 Single-Turn Absolute Encoder solves the need for reliable position data in harsh conditions, eliminating reliance on unstable analog signals or dirt-sensitive optical encoders.

This solution uses phototransistors and an LED source to ensure accurate readings up to 13 bits. It supports parallel, SSI, or analog interfaces, allowing direct integration into modern PLCs without the need for complex external decoders.

The anodized aluminum construction with vibration-resistant ball bearings ensures a long service life under radial load. Available in guemisa.es.

  • Mechanical strength and precise circuit design underpin its operation in heavy industrial environments.
  • It supports resolutions up to 13 bits with Gray, Binary, BCD or Excess codes for flexible integration.
  • Anodized aluminum construction with ball bearings resistant to vibrations and severe impacts.
  • IP65 protection on the outlet and IP66 protection on the shaft ensures safe operation against dust, oil, and moisture.

Technical Frequently Asked Questions

What alignment precautions does the A/380 shaft require?

The assembly requires strict concentricity between the encoder shaft and the motor or gearbox to prevent premature bearing wear. The stainless steel shaft supports a radial/axial load of 5 kg, but misalignment can significantly reduce the lifespan of the phototransistors and LED source in high-RPM applications.

What connectors and output options are available for the A/380?

Several IP-rated connectors are available, including PT02A16-26P for parallel outputs or MS310A18-1P for compact 10-pin connections. You can select electronic options such as SSI interface outputs to adapt the encoder to the specific requirements of your PLC or controller without changing the mechanical unit.

What are the environmental conditions and operating limits of the A/380?

The unit operates reliably between -30°C and +85°C, with storage limits up to +70°C. The anodized aluminum housing provides resistance against the ingress of dust, oil, and moisture, ensuring that the phototransistors remain functional in harsh environments where standard plastic encoders might quickly fail.

How does the A/380 integrate with analog control systems?

For analog integration, the A/380 supports 1-20mA current outputs or 0-10V voltage outputs for resolutions up to 10 bits. This allows direct connection to standard instrumentation amplifiers or controllers requiring linear position feedback without the need for complex decoding logic in the control system.

Properties

FeatureSpecification
Sensor TypePhototransistors
Main ApplicationHeavy industry
Vcc Power Supply18–28 V, 5 V ±5%, 15 V ±5%, 8–24 V, 10–30 V
AxisØ 6 mm / 9.52 / 10 / 11 / 12 mm Stainless Steel
Weight650 g
Maximum Radial Load5 Kg
IP Protection OutputIP65
IP Protection AxisIP66
Maximum Continuous RPM6.000 / 3.000 / 8.000
Starting Torque18 / 30 / 8 gcm
Vibration Resistance12 G (10 – 2000 Hz)
Bearing Life1.5 × 10⁹ revolutions
Operating Temperature0 – +70 °C
Maximum Resolution2 to 13 bits (4 to 8192 positions)
Impact Resistance50 G x 11 ms
Single-turn Absolute Encoder A/380
Dimension drawing of a single-turn absolute encoder A/380

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