A/958SS Multi-Turn Absolute Encoder

Housing Ø58 mm | Spindle Ø 6 mm / 10 mm Stainless Steel | Operating Temp. -40 – +85 °C | Resolution 30 bits / 16384 revolutions | Max. Load 40/110 N | Max. Frequency 800 kHz | Weight 300 g | Vibration 10 G (10 – 1000 Hz) | Impact 30 G x 11 ms | Protection IP65 (standard) / IP65 (sealed) | Max. RPM 6,000 / 3,000 | Power Supply 10÷30 VDC

In demanding industrial environments, the need for absolute positioning without homing is faced with electromagnetic interference and constant mechanical vibrations that can compromise the accuracy of conventional incremental sensors.

The A/958SS Absolute Multiturn Encoder solves this by means of SSI protocol and RS422 transmission, offering up to 30-bit resolution for multiturn and reverse polarity protection on its output interface.

Built with sealed ball bearings and an aluminum or stainless steel housing, it withstands impacts of 40/110 G and extreme temperatures. Available in guemisa.es.

  • 'Servo-Mount' mounting using claws or front screws for compact installation.
  • Impact resistance up to 40/110 G for 11 ms according to technical specification.
  • EMC certification according to EN 61000-6-2 and EN 61000-6-4 for noisy environments.
  • Bearing life of 1.5 × 10⁹ revolutions at 1000 revolutions per minute.

Technical Frequently Asked Questions

What are the actual precautions for mechanical assembly and shaft alignment?

For installation, use 'Servo-mount' mounting with clamps or front screws as per the datasheet. Ensure precise alignment of the Ø6 or Ø10 shaft to avoid radial loads exceeding the limits specified in the ELCIS technical data sheets.

What connector options and output configurations are available?

The connection supports axial or radial output with a 12-pin IP65 connector. If electromagnetic immunity is required, select option W for sealed bearing, ensuring robust transmission in noisy industrial environments without interference.

What are the operational environmental and physical resistance limits?

The permissible operating range is -40 to +85 °C with IP65 protection on the output and shaft. Impact resistance reaches 40/110 G for 11 ms, meeting certified EMC standards EN 61000-6-2 and EN 61000-6-4 for durability.

Properties

FeatureSpecification
Sensor TypeAbsolute SSI with Field Bus (RS422)
Main ApplicationGeneral Industry / Servo-Mount
Vcc Power Supply10÷30 VDC (Continuous)
AxisØ 6 mm / 10 mm Stainless Steel
Weight300 g
Maximum Radial/Axial Load40/110 N
Maximum Continuous RPM6.000 / 3.000
Starting Torque50 / 90 gcm
Impact Resistance30 G x 11 ms
Bearing Life1.5 × 10⁹ revolutions
Electrical Noise/Vibration10 G (10 – 1000 Hz)
Resolution (positions)65536 (Multiturn) / 4096 (Singlet)
Maximum Frequency800 kHz
IP protectionIP65 (standard) / IP65 (sealed)
A/958SS Multi-Turn Absolute Encoder
Dimension drawing of the A/958SS Absolute Multiturn Encoder

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