General Specifications; Scale Specifications - Renishaw RGH40 Installation Manual

General specifications

Power supply 5 V ± 5% RGH40A, T, D, G and X <120 mA
RGH40N, W, Y and H <150 mA
NOTE: Current consumption figures refer to unterminated readheads.
For digital outputs a further 35 mA per channel pair (e.g. A+, A-) will be
drawn when terminated with 120 Ω.
For analogue outputs a further 20 mA will be drawn when terminated
with 120 Ω.
Power from a 5 V dc supply complying with the requirements for SELV
of standard IEC BS EN 60950-1.
Ripple 200 mVpp@frequency up to 500 kHz maximum.
Temperature Storage -20 °C to +70 °C
Operating 0 °C to +55 °C
Humidity
95% relative humidity (non-condensing) to EN 60068-2-78
Sealing IP50
Acceleration Operating 500 m/s
Shock Non-operating 1000 m/s
Vibration Operating 100 m/s
Mass Readhead 50 g
Cable 38 g/m
Cable
12 core, double shielded, outside diameter 4.5 ±0.2 mm.
Flex life >20 x 10
The RGH40 series readheads have been designed to the relevant EMC standards, but must be correctly
integrated to achieve EMC compliance. In particular, attention to shielding and earthing arrangements
is essential.
RGH40 RGS40-G
installation guide
2 , 3 axes
, 6 ms, ½ sine, 3 axes
2
max @ 55 Hz to 2000 Hz, 3 axes
2
cycles at 50 mm bend radius.
6

Scale specifications

Material Chrome on glass
Form 2.9 mm x 18 mm
(H x W)
Scale period 40 µm
Coefficient of thermal expansion ~ 8.5 µm/m/°C
Mounting Epoxy datum point and adhesive backing tape, or mechanical
datum clamp and mounting clips
Scale length (mm) 130 180
Accuracy 0.7 0.9
(±µm)
230 280 310 400 510
1.1 1.3 1.4 1.8 2.2
760 1010
3.2 4.2
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