ATOM DX™ incremental encoder system with CENTRUM™ CSF40 rotary (angle) disc
Features
- Digital output direct from the readhead
- Readhead size: 20.5 x 12.7 x 10.85 mm (20.5 x 12.7 x 7.85 mm for top exit variant)
- Resolutions down to 5 nm
- Speed up to 20 m/s
- Stainless steel self-centring disc
Benefits
- Miniature package
- No separate interface required
- Filtering optics design enabling high dirt immunity
- Advanced Diagnostic Tool for easy fault finding
- Robust metal scale disc with innovative alignment flexures
- Fixing options: bolts or clamp
- Quick and easy to install
What is ATOM DX?
The ATOM DX encoder series is Renishaw's smallest incremental optical encoder with digital output direct from the readhead. It provides positional feedback, onboard interpolation and filtering optics all in a miniature package.
Detailed diagnostic information can be accessed by using the optional Advanced Diagnostic Tool ADTi‑100 and ADT View software for in‑field diagnostics, fault finding and to aid optimisation of encoder set-up in even the most demanding applications.
ATOM DX for CENTRUM is supplied in cabled and top exit variants with a 40 µm scale option, and offers resolutions down to 5 nm.
What is CENTRUM™ CSF40?
CENTRUM CSF40 is a stainless steel encoder scale disc. It includes innovative alignment flexures that automatically centre the scale when pushed onto a shaft, providing improved metrology performance.
CENTRUM self-centring scale discs are quick and easy to install 'right first time': no additional gauges or set-up devices are required.
The discs are made from robust stainless steel, which is resilient and easy to clean.
With 40 µm pitch incremental graduations, CENTRUM discs are available in a range of sizes and fixing options. For custom disc sizes, please contact your local Renishaw representative.
Why choose this encoder system?
Miniature encoder for space critical applications
ATOM DX, available in sizes as small as 20.5 mm x 12.7 mm x 7.85 mm, allows for integration in the tightest of spaces. There are a number of options to choose from, including both cabled and top exit versions.
Easy fault finding and servicing
The Advanced Diagnostic Tool acquires comprehensive real-time data from ATOM DX encoder readheads. The information is displayed via the user-friendly ADT View software interface. Whilst in most cases the integral set-up LED on the encoder is sufficient for setting up the system, the ADT can be used to aid more challenging installations. The ADT can also report on encoder performance and assist system fault finding to avoid lengthy machine downtime.
Self-centring robust scale disc
Self-centring CENTRUM scale discs feature excellent part-to-part reproducibility and are easy to install 'right first time', every time.
The built-in alignment flexures are used to locate the scale disc both during scale manufacture and subsequent disc mounting, ensuring that the scale marks are concentrically located about the mounting shaft.
Optional Advanced Diagnostic Tool ADTi-100
The ATOM DX encoder system is compatible with the Advanced Diagnostic Tool ADTi-100 and ADT View software. They provide comprehensive real-time encoder data feedback to aid more challenging installations and diagnostics. The intuitive software interface can be used for:
- Remote calibration
- Signal optimisation over the entire axis length
- Reference mark indication
- Digital readout of encoder position (relative to the scale)
- Monitoring the velocity against time graph
- Exporting and saving data
Technical specifications
Measuring standard | Stainless steel disc |
Readhead size (LxWxH) | Cabled variant: 20.5 mm x 12.7 mm x 10.85 mm Top exit variant: 20.5 mm x 12.7 mm x 7.85 mm |
Scale pitch | 40 µm |
Thermal expansion coefficient | 15.5 ±0.5 µm/m/°C |
Disc outer diameter | Fixing options: Bolts: 38.4 mm to 120 mm Clamp: 31 mm to 120 mm For other sizes, contact Renishaw |
Line count | Fixing options: Bolts : 2 482 to 9 142 Clamp: 1 900 to 9 142 |
Reference mark | Single reference mark |
Graduation accuracy | ±0.5 µm |
| Installed accuracy | < ±10 µm (when following recommended mounting) |
| Installed eccentricity | Typically < ±5 µm |
| Shaft diameter | Fixing options: Bolts: 7 mm to 88.6 mm Clamp: 7 mm to 95 mm |
Maximum speed | Up to 20 m/s (See data sheet for details) |
Sub-Divisional Error (SDE) | < ±120 nm |
Dynamic signal control | Real time signal conditioning including Auto Gain Control (AGC) and Auto Offset Control (AOC) for optimised performance across a range of operating conditions |
Incremental signals | 10 µm to 5 nm resolution (See data sheet for details) |
Electrical connection | Cabled variant: 0.2 m, 0.5 m, 1 m, 1.5 m, 2 m and 3 m cable lengths with D-type connectors (9 and 15 way) |
Power supply | 5 V -5/+10% typically < 200 mA fully terminated |
Vibration (operating) | 100 m/s² max @ 55 Hz to 2000 Hz, 3 axes |
Shock (operating) | 500 m/s², 11 ms, ½ sine, 3 axes |
Operating temperature | 0 °C to +70 °C |
Sealing | IP40 |
Refer to data sheets for full details.