RGH34 RGS40
installation guide
12
General specifications
Power supply
5 V ± 5%
120 mA
NOTE:
Current consumption figures refer to unterminated
RGI34 interfaces.
For digital outputs a further 25 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 maximium
Temperature
Storage
-20 °C to +70 °C
Operating
0 °C to +55 °C
Humidity
95 % relative humidity (non-condensing) to EN 60068-2-78
Acceleration
Operating
500 m/s
2
, 3 axes
Shock
Non-operating
1000 m/s², 6 ms, ½ sine, 3 axes
Vibration
Operating
100 m/s² max @ 55 Hz to 2000 Hz, 3 axes
Mass
Readhead
2 g
Interface
3 g
Readhead to interface
connections
Very low profile zero insertion force micro-connector for 10 way
Flexible Printed Circuit (FPC) cable. Cable flex life minimum
10 x 10
3
cycles at 5 mm bend radius.
Scale specifications
Scale type
RGS40-S
Reflective gold plated steel tape with protective lacquer coating.
Adhesive backing tape allows direct mounting to the
machine substrate.
RGS40-P
Reflective gold plated steel tape with tough polyester coating for
applications using harsh solvents.
Adhesive backing tape allows direct mounting to the
machine substrate.
Scale period
40 µm
Linearity
RGS40-S
±3 µm/m
RGS40-P
±5 µm/m
Scale length
Up to 50 m (>50 m by special order)
Form
(H x W)
RGS40-S
0.2 mm x 6 mm (includes adhesive)
RGS40-P
0.3 mm x 6.3 mm (includes adhesive)
Substrate
materials
Metals, ceramics and composites with expansion coefficients
between 0 and 22 µm/m/°C
(steel, aluminium, Invar, granite, ceramic etc.)
Expansion coefficient
Matches that of substrate material when scale ends are fixed by
epoxy mounted end clamps
End fixing
Epoxy mounted end clamps (A-9523-4015) using 2 part epoxy
adhesive (A-9531-0342)
Scale end movement <1 µm over temperature range
-20 °C to +50 °C
Temperature
Operating
-10 °C to +120 °C.
Minimum installation
10 °C
Storage
-20 °C to +70 °C.
Humidity
95% relative humidity (non-condensing) to EN 60068-2-78