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The RH200 readhead works with 20 μm refl ective tape scale, has unique filtering optics, set-up LED, and offers high speed performance.
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7/15/2019 Renishaw Encoders - RH200 Encoder System
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Data sheetL-9517-9493-01-A
RH200 encoder system
The RH200 readhead works with
20 µm reflective tape scale, has
unique filtering optics, set-up LED,
and offers high speed performance.
The RH200 offers generous set-up tolerances
and maintains good contamination immunity.
• Non-contact open optical system
• Large installation tolerances
• Maximum speed 5 m/s
• Reference mark or limit switch capability
• Integral set-up LED
• Uses Renishaw RH200 self-adhesive scale
Output specifications
Digital output signals - type RH200 X, Z
Form - Square wave differential line driver to EIA RS422A
Incremental 2 channels A and B in quadrature (90° phase shifted)
Alarm
3-state alarm
Incremental channels forced open circuit for >20 ms when signal
too low for reliable operation.
Signal period P
Resolution S
Reference Synchronised pulse Z, duration equal tothe resolution. Repeatability of position
(uni-directional) maintained within±10 °C from installation temperature
and for speed <250 mm/s.
A
B
Z
Inverse signals not shown for clarity
Inverse signal not shown for clarity
Actuation device A-9531-0250 orA-9541-0037
Recommended signal termination
Standard RS422A line receiver circuitry. Contact Renishaw for further detailson receiver termination for 3-state output
Readhead Customerelectronics
120R
A B Z+
A B Z-
Model
RH200X
RH200Z
P (µm)
4
2
S (µm)
1
0.5
Analogue output signals type RH200B (1Vpp)
Incremental 2 channels V1
and V2
differential sinusoids in quadrature
(90° phase shifted)
Differential pulse V0 - 18° to 108°Duration 126° (electrical)
Repeatability of position (uni-directional)
maintained within ±10 °C from installationtemperature and for speed <250 mm/s
Actuation device A-9531-0250 orA-9541-0037
Reference
20 µm
90°
0.6 to 1.2 Vpp with greenLED indication and
120R termination
108°-18°
0°
(V1+)-(V
1-)
(V2+)-(V
2-)
0.8 to 1.2 Vpp
(V0+)-(V
0-)
Termination
120R
V0
V1
V2+
V0
V1
V2-
7/15/2019 Renishaw Encoders - RH200 Encoder System
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Renishaw plc
New Mills, Wotton-under-Edge,
Gloucestershire GL12 8JR
United Kingdom
T +44 (0)1453 524524
F +44 (0)1453 524901
www.renishaw.com
*L-9517-9493-01*
Operating and electrical specifications
Maximum speed 1 µm resolutiom = 5 m/s
0.5 µm resolutiom = 3 m/s
Power supply 5 V± 5% 120 mA (typical)
Temperature Storage -20 °C to +70 °C
Operating 0 °C to +55 °C
Sealing IP40
Shock (non-operating) 1000 m/s2, 6 ms, ½ sine
BS EN 60068-2-27:1993
(IEC 68-2-27:1987)
Vibration (operating) 100 m/s2 max @ 55 Hz to 2000 Hz
BS EN 60068-2-6:1996
(IEC 68-2-6:1995)
Mass Readhead 11 g Cable 34 g/m
EMC compliance (system) BS EN 613236-1: 2006
Cable Flex life >20 x 10 6 cycles at
20 mm bend radius
Cable length 0.5 m or 1.5 m
Connector 9 pin ‘D’ type plug
Technical specifications
Analogue output period 20 µm
Digital output resolution 1µm, 0.5 µm
Scale type Reflective gold plated steel tape with
protective lacquer or polyester coating
and self-adhesive backing
Scale pitch 20 µm
Scale length Up to 9 m in 0.5 m increments
Scale accuracy ±15 µm/m without end clamp fixing
or calibration
Expansion coefficient Matches that of substrate material with
scale ends fixed by epoxy mounted
end clamps
End fixing Epoxy mounted end clamps (A-9523-4015)
using 2 part epoxy adhesive (A-9531-0342)
Reference mark/limit switch
Type Magnetic actuator
Position One or more at user selected locations
For worldwide contact details, please visit our main website at www.renishaw.com/contact
RENISHAW HAS MADE CONSIDERABLE EFFORTS TO ENSURE THE CONTENT OF THIS DOCUMENT IS CORRECT
AT THE DATE OF PUBLICATION BUT MAKES NO WARRANTIES OR REPRESENTATIONS REGARDING THE CONTENT.RENISHAW EXCLUDES LIABILITY, HOWSOEVER ARISING, FOR ANY INACCURACIES IN THIS DOCUMENT.
RENISHAW ® and the probe emblem used in the RENISHAW logo are registered trademarks of Renishaw plcin the UK and other countries. apply innovation is a trademark of Renishaw plc.
© 2011 Renishaw plc All rights reserved Issued 0811
RH200 installation drawing
Dimensions and tolerances in mm
0.8 ± 0.1Rideheight
9.5 6.2
27
21
0.6
0.3
(Yaw Tol. ± 0.5°)
>R20 Dynamic bend radius
>R10 Static bend radius
(Pitch Tol. ± 1°)
Fixing screws
M3 x 0.5 x 8
36
26
Ø 4 . 4 m
a x
21.1
>4
4
8.5
8.5*
A
Reference mark sensor/ limit switch sensor position
Optical centreline
A-9541-0037
Reference markactuator
4* 8*2 Mounting holes
M3 x 0.5 through
Set-up LED
12.8
5.5
Arrow indicates forward direction
of readhead relative to scale
Readhead
Readhead to
scale clearance
Detail A
Scale surface
8
Alternative mounting face
(Roll Tol. ± 1°)
0.09
3.8
13.5
15.8*
4.8
(Extent of mounting faces)
Mounting face
3
36
Scalethickness0.2
0.8 -0.1
+0.2
See note✝
( )
*Dimensions measured from substrate.
✝NOTE: Required nominal 0.8 gap can be set using readhead spacer (supplied) positioned between readhead and actuator when positioning/fixing the actuator.
