General Specifications; Disc Specifications - Renishaw ATOM Installation Manual

General specifications

Power supply 5 V ±10%
Ripple
Temperature
Storage
Operating
Humidity
Sealing
Acceleration Operating
(scale and readhead)
Shock
Operating
(scale and readhead)
Vibration
Operating
Mass
Readhead cable
FPC cable
Connector options Cable variants
FPC
Typical SDE (analogue)
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
rotary installation guide
ATOM readhead typically <50 mA
ATOM with ACi typically <100 mA
ATOM with Ri typically <100 mA
ATOM with Ti typically <200 mA
NOTE: Current consumption figures refer to unterminated systems.
For analogue outputs a further 10 mA in total will be drawn when
terminated with 120R. For digital outputs a further 25 mA per
channel pair (eg A+, A-) will be drawn when terminated with 120R.
Power from a 5 V dc supply complying with the requirements
for SELV or standard IEC BS EN 60950-1.
200 mVpp maximum@frequency up to 500 kHz
-20 °C to +70 °C
0 °C to +70 °C
95% relative humidity (non-condensing) to EN 60068-2-78
Cable variant IP40 Ri interface IP20
FPC variant IP20 Ti interface IP20
(with lid fitted)
400 m/s², 3 axes
1000 m/s², 6 ms, ½ sine, 3 axes
100 m/s² max @ 55 Hz to 2000 Hz, 3 axes
FPC readhead 2.3 g Cable readhead 4 g
Cable 18 g/m ACi
Ri 70 g Ti
10 core, high flex, EMI screened cable
Outside diameter 3.5 mm maximum
Flex life >20 x 10 cycles at 20 mm bend radius
6
Maximum length 5 m
(Extension cable up to 25 m when using Renishaw
approved extension cable)
UL recognised
16 core, 0.5 mm pitch
Minimum exposed conductor length 1.5 mm
Maximum exposed conductor length 2.5 mm
Maximum length 1 m
Interboard connector compatible with the Ri, Ti and ACi (cable variant)
series interfaces
15 way, D-type connector
16 core, 0.5 mm pitch, compatible with ACi (FPC variant)
40 µm version <±120 nm
20 µm version < ±75 nm

Disc specifications

Material
Form
Reference mark
Graduation accuracy
Disc size (mm)
Graduation accuracy
(arc seconds)
Coefficient of thermal expansion
Nominal outer diameter (mm)
4 g
100 g
Soda lime glass
2.3 mm thick
Single reference mark
Discs <100 mm ±0.5 µm
Discs >100 mm ±0.7 µm
17 20 25 27 30 36
15.81 12.95 9.82 9.0 7.91 6.49
~8 µm/m/°C
40 µm 17, 20, 25, 27, 30, 36, 50, 56, 68, 108
20 µm 30, 36, 50, 56, 68, 108
50 56 68 108
4.5 3.95 3.24 2.78
33