RTLC high accuracy incremental linear encoder scale system

Data sheet
L-9517-9417-04-A
RTLC high accuracy incremental linear scale
RTLC linear encoder tape scale from
Renishaw combines ±5 µm/m accuracy
with the ruggedness of stainless steel.
Two versions are available; self-adhesive RTLC-S
and RTLC for use with the revolutionary FASTRACK ™
track system from Renishaw.
• High accuracy (±5 µm/m)
scale. Further improvement
possible with error correction
Designed for applications that demand high accuracy and an independent
expansion coefficient with tape scale convenience, RTLC-S and RTLC are read
by Renishaw’s compact and reliable VIONiC™ and TONiC™ family of readheads.
• RTLC scale expands at its
own low thermal coefficient
(10.1 ±0.2 µm/m/°C @ 20 °C)
RTLC-S is laid onto the substrate using its self-adhesive backing tape. A patented
application tool makes this a quick, simple and inexpensive process. A clamp is fitted
at a single point to lock the scale to the substrate.
• Use with FASTRACK for
very low hysteresis
RTLC (without self-adhesive) is used with FASTRACK. In this case, the scale is held
securely in place by two miniature, yet rugged, guide rails. Again, the scale is clamped
in a single point to allow independent expansion with extremely low hysteresis, even
over wide temperature ranges. If damaged, the scale can be pulled out of the guide
rails and quickly replaced, even where access is limited, thus reducing machine
downtime. This feature also makes the new linear encoder system ideal for large
machines that need to be sectioned for transportation.
RTLC-S and RTLC with FASTRACK are suitable for many applications, including
FPD manufacturing and inspection machines, P-V manufacturing, linear motors with
aluminium substrates, axes that are exposed to potential damage, large CMMs and
other machines that require the scale to be installed/removed for transit, or simply
for any application where thermal expansion of the scale must be independent of
the machine structure.
• Compatible with VIONiC and
TONiC high-performance
readheads
• FASTRACK guide rails are
pre-aligned in reels for
cut-to-suit flexibility
• Quick installation.
FASTRACK adds fast scale
replacement capability
• Scale can be locked to the
substrate at a single datum
point anywhere along the axis
• RTLC scale can bridge gaps in
the FASTRACK up to 25 mm
• High solvent immunity
Data sheet
RTLC high accuracy tape scale
System features
High accuracy RTLC and RTLC-S scale
Error plot
10
u
±5 µm/m accuracy@20 °C, including slope
and linearity. Linearity of ±2.5 µm/m can be
achieved with two point error correction
u
Hardened stainless steel construction is rugged
and reliable, with high scratch and solvent resistance
u
Independent expansion coefficient
(10.1 ±0.2 µm/m/°C @20 °C)
u
Very low hysteresis: sub-micron on a centre-clamped
2 m axis over the entire operating temperature range,
for example
u
20 µm scale pitch
u
Features optical IN-TRAC reference marks every
50 mm; identify one or more using the reference mark
selector magnet(s)
u
Scale can be cut to length using a guillotine,
for easy customisation
u
Track-mounted RTLC using the revolutionary new
FASTRACK or self-adhesive mounted, RTLC-S
8
6
2
±6.2 µm
Error (µm)
4
0
-2
-4
-6
-8
-10
0
500
1000
1500
2000
2500
3000
3500
Position (mm)
Example accuracy test result of 3400 mm
length of RTLC scale
Compatible with VIONiC, VIONiCplus™
and TONiC readheads
Filtering optics and Auto Gain Control for high
reliability and solid Lissajous signals
u
Dynamic signal processing ensures ultra-low
Sub-Divisional Error (SDE).
Result: smoother scanning performance
u
High signal-to-noise ratio provides ultra-low jitter
for optimum positional stability
u
Auto-phasing of IN-TRAC reference mark
u
Industry standard 1 Vpp analogue outputs
(TONiC readhead only) and RS422 digital
resolutions available
u
Clocked outputs ensure optimised speed
performance for all resolutions, for a wide
variety of industry-standard controllers
u
DOP Dual output interfaces available to provide
simultaneous analogue and digital outputs
(TONiC systems only)
VIONiC
VIONiCplus
TONiC
Digital resolutions from
5 µm to 20 nm
direct from the readhead
Digital resolutions from
0.1 µm to 2.5 nm
direct from the readhead
Analogue 1 Vpp only
RS422 digital resolutions from
5 µm to 1 nm available when connected
to a Ti, TD or DOP interface
SDE (typical)
<±30 nm
<±10 nm
±30 nm
Jitter (RMS)
down to 1.6 nm
down to 1.6 nm
down to 0.5 nm
12 m/s
12 m/s
10 m/s
Outputs
Maximum speed
2
u
3
RTLC clamp
(A-9589-0077)
3
0.5
0.1/100
F
12
A
FASTRACK
(A-9704-xxxx)
RTLC scale
(A-9705-xxxx)
2.3
B
Detail A
Clamp
shoulder
18
5
0.05
12
F
35 max
Do not cut FASTRACK
over shaded areas
F = axis of motion
16
Detail B
Additional screws available (Pack of 25 A-9584-2047)
=
5 min thread
depth
Nominal Q limit
trigger point (±3)
1.7
Q limit magnet
NOTE: Minimum recommended FASTRACK length = 100 mm
Optical centreline
(incremental and reference mark)
Do not place clamp tip
over shaded area.
NOTE: When FASTRACK
reference mark and datum
clamp aligned as shown,
reference output will be
positionally repeatable
with respect to substrate.
IN-TRAC reference mark
VIONiC readhead
Reference mark selector
FASTRACK length (L - 24)*
*Assumes 1 mm gap between scale and end covers and zero gap between FASTRACK and end covers.
Ra 3.2
15 ±1
Nominal P limit
trigger point (±3)
Detail A
Scale length (L )
Overall length (L + 12)
Measuring length ML = (L-10) (ML = ( L-25) with dual limits)
F = axis of motion
P limit magnet
10 max (gap)
M3 x 6 low head screw,
supplied with clamp=
25
Optional end cover
(Pair A-9589-0058)
18 ±0.1
2.25 ±0.5
1 min (gap)
Data sheet
RTLC high accuracy tape scale
For further details, please refer to VIONiC or TONiC RTLC and FASTRACK installation guides
RTLC and FASTRACK carrier with VIONiC installation drawing (mechanical datum clamp method)
Dimensions and tolerances in mm
4
Detail A
Nominal P limit
trigger point (±3)
15 ±1
Optional end cover
(Pair A-9589-0058)
P limit magnet
10 max (gap)
Scale length (L)
RTLC scale
(A-9705-xxxx)
™
0.5
0.1/100
A
F
Q limit magnet
FASTRACK
(A-9704-xxxx)
35 max
B
Nominal Q limit
trigger point (±3)
Do not cut FASTRACK
over shaded areas
NOTES: Minimum recommended FASTRACK length = 100 mm. The reference mark selector and limit actuator locations are correct for the readhead orientation shown.
Detail B
F = axis of motion
Optical centreline
(incremental and reference mark)
®
Spot of Loctite 435
(2 positions) to secure
axis datum position
IN-TRAC reference mark
TONiC readhead
(T-103x)
Reference mark selector magnet
FASTRACK length = (L - 24)*
Measuring length ML = (L-10) (ML = (L-25) with dual limits)
*Assumes 1 mm gap between scale and end covers and zero gap between FASTRACK and end covers.
Ra 3.2
NOTE: When FASTRACK
reference mark and adhesive
datum aligned as shown,
reference output will be
positionally repeatable
with respect to substrate.
18 ±0.1
2.25 ±0.5
1 min (gap)
Overall length (L + 12)
F
F = axis of motion
0.05
18
5
Data sheet
RTLC high accuracy tape scale
RTLC and FASTRACK carrier with TONiC installation drawing (adhesive datum clamp method)
For further details, please refer to TONiC or VIONiC RTLC and FASTRACK installation guides
Dimensions and tolerances in mm
5
12.5
11.7
Ra 3.2
15 ±1
12
Detail A
5
23
35
Dimensions from scale surface.
=
3.7
4.6=
P limit trigger point
12.1=
Datum clamp
(A-9585-0028)
0.05 F
F = axis of motion
3.5
B
Detail C
0.8
2.0 B
Rideheight
2.1 ±0.15
Scale
reading
surface
8
Adhesive
thickness
0.2
Scale thickness
0.2
Optional end cover
(Pair A-9585-0035)
Detail D
C
B
NOTE: Bolted reference mark selector and limits also available. See TONiC T103x RTLC-S installation guide for details.
End cover
alignment
indicator
Detail B
5
Readhead to
scale clearance
Q limit trigger point
Q limit magnet
(A-9653-0139)
Reference mark selector
(A-9653-0143)
A
Optical centreline (incremental and reference mark)
D
Readhead optical detector position at extent of travel
P limit magnet
(A-9653-0138)
13.5
Measuring length ( L-17)
Scale length ( L )
Overall length ( L + 37 )
Data sheet
RTLC high accuracy tape scale
RTLC-S with TONiC installation drawing (adhesive datum clamp method)
For further details, please refer to TONiC or VIONiC RTLC-S installation guide
Dimensions and tolerances in mm
Data sheet
RTLC high accuracy tape scale
RTLC-S and RTLC/FASTRACK specifications
Description
RTLC-S Self-adhesive incremental high-accuracy hardened and
tempered stainless steel.
RTLC Incremental high-accuracy hardened and tempered stainless steel scale
for use with FASTRACK track system.
FASTRACK Hardened stainless steel guide rails with integral sacrificial spacers,
with self-adhesive backing tape for easy installation.
FormRTLC-S
0.4 mm x 8 mm (H x W) including adhesive
FASTRACK 0.4 mm x 18 mm (H x W) including adhesive
Accuracy
RTLC-S/RTLC ±5 µm/m @20 °C
Linearity
RTLC-S/RTLC ±2.5 µm/m achievable with two point error correction
Thermal expansion
RTLC-S/RTLC 10.1 ±0.2 µm/m/°C @20 °C
FASTRACK 10.1 ±0.2 µm/m/°C @20 °C
Temperature (system)
Storage -20 °C to +70 °C
Operating 0 °C to +70 °C
Humidity (system) 95% relative humidity (non-condensing) to EN 60068-2-78
Shock (system)
Non-operating 500 m/s2, 11 ms, ½ sine, 3 axes
Vibration (system)Operating
300 m/s2 max @ 55 to 2000 Hz, 3 axes
Mass
RTLC-S 12.9 g/m
RTLC 12.2 g/m
FASTRACK 24 g/m
Minimum recommended length
FASTRACK 100 mm
Maximum supplied lengthRTLC-S
5 m=
RTLC 10 m
FASTRACK 25 m
=
For lengths >2 m FASTRACK with RTLC is recommended
RTLC-S, RTLC and FASTRACK part numbers
Scale type
Length
Reference mark
separation
Available in
Part number
increments of:(where xxxx is the length in cm)
RTLC-S
100 mm to 5 m
50 mm
50 mm
A-9715-xxxx
RTLC
100 mm to 10 m
50 mm
50 mm
A-9705-xxxx
FASTRACK
100 mm to 25 m
N/A
25 mm*
A-9704-xxxx
*NOTE: Part numbers for FASTRACK lengths ending in 25 mm are:
6
Part numbers for FASTRACK lengths ending in 75 mm are:
A-9704-xxx3
A-9704-xxx8
Renishaw plc
New Mills, Wotton-under-Edge,
Gloucestershire GL12 8JR
United Kingdom
T +44 (0)1453 524524
F +44 (0)1453 524901
E [email protected]
www.renishaw.com
Accessories
Reference and limit magnets
Reference mark selector magnet (adhesive/bolted)
A-9653-0143/A-9653-0290
Q limit switch actuator magnet (adhesive/bolted)
A-9653-0139/A-9653-0291
P limit switch actuator magnet (adhesive/bolted)
A-9653-0138/A-9653-0292
Magnet applicator device
A-9653-0201
Datum clamp
Adhesive datum clamp (RTLC-S only)
A-9585-0028
Adhesive for datum clamp (Loctite 435)
P-AD03-0015
Bolted datum clamp (FASTRACK only)
A-9589-0077
Setting gauge
RTLC 1.9 mm setting shim (black)
M-9589-0067
RTLC-S 2.1 mm setting shim (green)
M-9653-0189
Separator kit (FASTRACK only)
Centre section removal tool
A-9589-0066
End cover
End cover kit (FASTRACK only)
A-9589-0058
End cover kit (RTLC-S only)
A-9585-0035
Scale/track cutting jig
Guillotine kit
A-9589-0071
Compatible products
RTLC/FASTRACK
T103x RTLC/FASTRACK Installation guide M-9589-9002
TONiC DOP Installation guide M-9653-9278
TONiC Data sheet L-9517-9337
TONiC DOP Data sheet L-9517-9411
TONiC UHV Data sheet L-9517-9426
VIONiC Data sheet L-9517-9678
VIONiC RTLC and FASTRACK Installation guide M-6195-9225
RTLC-S
T103x RTLC-S Installation guide M-9589-9013
TONiC DOP Installation guide M-9653-9278
TONiC Data sheet L-9517-9337
TONiC DOP Data sheet L-9517-9411
TONiC UHV Data sheet L-9517-9426
VIONiC Data sheet L-9517-9678
VIONiC RTLC-S Installation guide M-6195-9108
For worldwide contact details, please visit our main website at www.renishaw.com/contact
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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.
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Loctite® is a registered trademark of the Henkel Corporation.
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All rights reserved
Issued 0716
*L-9517-9417-04*