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General specifications
Power supply
5 V −5 /+10% Typically <200 mA fully terminated
Ripple 200 mVpp maximum@frequency up to 500 kHz
Temperature
Storage −20 °C to +70 °C
Operating 0 °C to +70 °C
Humidity
Sealing
Acceleration
Operating 400 m/s², 3 axes
(system)
Shock
Operating 1000 m/s², 6 ms, ½ sine, 3 axes
(system)
Vibration
Operating 100 m/s² max @ 55 Hz to 2000 Hz, 3 axes
Mass
Standard readhead 3.2 g
Top exit readhead 2.9 g
Cable 18 g/m
Cable
Cabled connector options
Top exit readhead connector
Typical Sub-Divisional
20 µm version <±75 nm
Error (SDE)
40 µm version <±120 nm
Renishaw encoder systems have been designed to the relevant EMC standards but must be correctly
integrated to achieve EMC compliance. In particular, attention to shielding arrangements is essential.
ATOM DX
rotary installation guide
Power from a 5 V dc supply complying with the requirements
for SELV of standard IEC BS EN 60950-1
95% relative humidity (non-condensing) to EN 60068-2-78
IP40
10 core, high flex, EMI screened cable, outside diameter
3.5 mm maximum
Flex life >20 × 10
6
cycles at 20 mm bend radius,
maximum length 3 m
(Extension cable up to 25 m when using Renishaw approved
extension cable)
UL recognised component
Top exit cables available in lenghts from 0.5 m to 3 m
with 15 way D-type or 10 way JST (SH) connector options.
9 way D-type
15 way D-type (standard and alternative pin out)
10 way JST (SH)
10 way JST (SUR)
Disc specifications
Material
Soda lime glass
Form
2.3 mm thick
Reference mark
Single reference mark
Graduation accuracy
Discs <100 mm ±0.5 µm
Discs >100 mm ±0.7 µm
Disc size (mm)
17
20
Graduation accuracy
15.81
12.95
9.82
(arc seconds)
Coefficient of thermal expansion
~8 µm/m/°C
Nominal outer diameter (mm)
40 µm
20 µm
25
27
30
36
50
56
9.0
7.91
6.49
4.5
3.95
17, 20, 25, 27, 30, 36, 50, 56, 68, 108
30, 36, 50, 56, 68, 108
68
108
3.24
2.78
21
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