RGH40 RGS40-G
installation guide
13
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
2
, 3 axes
Shock
Non-operating
1000 m/s
2
, 6 ms, ½ sine, 3 axes
Vibration
Operating
100 m/s
2
max @ 55 Hz to 2000 Hz, 3 axes
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
6
cycles at 50 mm bend radius.
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.
Scale specifications
Material
Chrome on glass
Form
(H x W)
2.9 mm x 18 mm
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
230
280
310
400
510
760
1010
Accuracy
(±µm)
0.7
0.9
1.1
1.3
1.4
1.8
2.2
3.2
4.2