A/959C Multi-Turn Absolute Encoder
- Manufacturer: ELCIS Encoder
- Category: Encoder, Absolute Encoder, Multi-turn Absolute Encoder, SENSORS
The ELCIS 959C (A/959C) is a 59 mm diameter, 15 mm diameter, F7 hollow shaft (optional 8, 10, 12, or other sizes available upon request) with integrated elastic coupling. It offers up to 25 bits in 4096 turns and features a 20 mA push-pull parallel output. Suitable for general industrial use, it boasts coupling tolerances of ±0.1 mm axial, ±0.2 mm radial, and ±1° angular, radial/axial loads of 40 and 110 N, IP64 protection on the shaft side (IP66 sealed), resistance to 30 G of shock and 10 G of vibration, and operating temperatures from -30 to +70 °C.
The A/959C is a multi-turn absolute encoder with optical readout via LED and IR photodiode array. It allows selection of 4096, 8192, or 65536 steps per revolution and 16, 256, or 4096 revolutions, with a maximum resolution of 25 bits at 4096 revolutions. It outputs the position in Gray or Binary code via a parallel (PP) or parallel with preset (P1) interface, with a 20 mA push-pull output stage and a 200 kHz LSB step rate.
Constructed with a Ø59 mm aluminum housing and a Ø15 mm F7 hollow stainless steel shaft (optional Ø8, Ø10, Ø12 or other dimensions available upon request), it supports radial loads of 40 N and axial loads of 110 N. It features IP64 protection on the shaft side (IP66 in the sealed version), withstands impacts of 30 G and vibrations of 10 G, and operates within a temperature range of -30 to +70 °C.
- Maximum resolution of 25 bit in 4096 turns.
- Hollow shaft with integrated elastic coupling: compensates for axial misalignments of ±0.1 mm, radials of ±0.2 mm and angular ±1°.
- Parallel output interface (PP) or parallel with preset function (P1).
- Push-pull output stage of 20 mA fed to 10–30 V DC with 200 kHz LSB.
Technical Frequently Asked Questions
What misalignments does the A/959C elastic coupling allow?
The built-in elastic coupling allows a maximum compensation of ±0.1 mm axial, ±0.2 mm radial and ±1° angular.
What hollow shaft options are available?
The standard diameter is Ø15 mm with F7 tolerance, and options are also available for shafts of Ø8, Ø10, Ø12 mm or special diameters upon request.
What functions do the PP and P1 interfaces offer?
The PP interface displays the angular value on the output connector in parallel; the number of conductors is proportional to the resolution and the code type. The P1 interface is the same as the PP interface, but with a preset function.
Properties
| Feature | Specification |
|---|---|
| Mechanics | |
| Housing | Aluminum (options available upon request) |
| Weight | 400 g |
| Axis | F7 Hole: Standard Ø15 mm; Ø8, Ø10, Ø12 or others upon request |
| Elastic coupling | Axial ±0.1 mm · radial ±0.2 mm · angular ±1° |
| max radial/axial load. | 40 / 110 N |
| Electric | |
| Shaft/outlet protection | IP64 shaft (IP66 sealed) · IP65 outlet |
| Food / Consumption | 10–30 V DC · 100–400 mA depending on bits |
| LSB pitch frequency | 200 kHz |
| Exit codes | Gray, Binary |
| Division accuracy | ±½ LSB (<13 bit) ±2 LSB (13–16 bit) |
| Max resolution. | 25 bit / 4096 laps |
| Interface / Output | Parallel (PP / P1) · Push-pull 20 mA |
| Protection and environment | |
| max. continuous RPM | 6000 standard · 3000 sealed (intermittent: +30 %) |
| Impact/vibration resistance | 30 G (11 ms) 10 G (10–1000 Hz) |
| Operating/storage temperature | -30 … +70 °C / -40 … +85 °C |
| Reference | Configuration |
|---|---|
| A/959C-12-12-15-B-P1-0-CVA959C121215BP10CV | 4096 steps/rev. · revolutions: 4096 · standard Ø15 mm shaft · Binary · Parallel + Preset · 1 m axial cable · max. 25 bits · IP65 |
| Other combinations of resolution, power supply, electronics and connection are available upon request: please contact us and we will confirm the exact reference. | |
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