A/990FD Absolute Fieldbus Encoder
- Manufacturer: ELCIS Encoder
- Category: Encoder, Absolute Encoder, Absolute Encoder Fieldbus, SENSORS
Absolute encoder of extremely robust construction, with hollow shaft and patented internal star coupling (like mod. 72), high axial compensation, with DeviceNet interface and high resolution.
The A/990FD is a single-turn or multi-turn absolute encoder with a DeviceNet (D2) interface, CAN transceiver (ISO 11898), and programmable baud rate. It allows selection of 4096, 8192, 16384, 32768, or 65536 steps per revolution and 1, 4096, or 16384 revolutions, with a maximum of 30 bits in binary code, and two LEDs indicate the status.
Constructed with an aluminum housing and a hollow stainless steel shaft of Ø10 H7 (optional Ø9.52, Ø8, Ø6 or others upon request), it supports radial and axial loads of 70 and 110 N. It features IP65 protection on the shaft side (IP66 in the sealed version), withstands impacts of 30 G and vibrations of 10 G, and operates from -40 to +85 °C. Available in guemisa.es.
- Hollow shaft with internal star coupling and max. compensation of ±3 mm axial, ±0.05 mm radial and ±2° angular.
- Interface DeviceNet with CAN transceiver (ISO 11898) and programmable transmission speed.
- Resolution of up to 16 bit per turn and 30 bit in 16384 turns.
- Transmission modes: polled mode, cyclic mode or cos mode, and 2 LED of state.
Technical Frequently Asked Questions
What compensation does the star coupling of the A/990FD allow?
According to the manufacturer, the maximum compensation of the coupling is ±3 mm axial, ±0.05 mm radial and ±2° angular.
What resolutions and lap times does the A/990FD allow you to configure?
It allows you to choose 4096, 8192, 16384, 32768 or 65536 steps per revolution and 1, 4096 or 16384 revolutions, with a maximum resolution of 30 bits at 16384 revolutions.
What parameters are programmable in the DeviceNet interface and what connections are available?
Direction of rotation (complement), resolution per revolution, total resolution, preset value, and transmission mode: polled mode, cyclic mode, or cos mode. Connections: IP65 connection cover (3PG), IP65 2-wire connection cover (2M20), and IP65 5-pin round connector (1BW).
Properties
| Feature | Specification |
|---|---|
| Housing | Aluminum (custom options available upon request) |
| Weight | 1400 g single turn · 1500 g multiturn |
| Axis | Hollow Ø10 H7, stainless steel (optional Ø9.52, Ø8, Ø6 or others upon request) |
| max radial/axial load. | 70 / 110 N |
| Exit-side protection | IP65 depending on the connection |
| axle-side protection | IP65 standard · IP66 sealed |
| max. continuous RPM | 5000 standard · 2500 sealed (intermittent: +30 %) |
| Impact/vibration resistance | 30G (11ms) 10G (10–1000Hz) |
| Power supply / max. consumption. | 10–30 V DC · 2.5 W |
| LSB pitch frequency | 800 kHz |
| Operating/storage temperature | -40 … +85 °C / -40 … +85 °C |
| Exit code | Binary |
| Division accuracy | ±½ LSB (<13 bit) · ±2 LSB (13–16 bit) |
| Max resolution. | 16 bits/turn · 30 bits in 16384 turns |
| Interface | DeviceNet (D2) · programmable transmission rate |
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