Renishaw RESOLUTE FS with BiSS Series Instruction Manual

M-9755-9109-01-A
RESOLUTE™FS with BiSS®Safety encoder system installation
guide and safety manual

RESOLUTE FS with BiSS ®Safety encoder system installation guide and safety manual ii Original instructions
Contents
Product compliance 1
Definitions 2
Functional Safety data declaration 2
Safety function 3
Certification 4
Storage and handling 5
Rotary scales
Rotary RESOLUTE readhead installation drawing 6
Rotary RESOLUTE side exit readhead installation drawing 7
Operating specifications - RESA and REXA rings 8
RESA ring installation drawing (‘A’ section) 9
RESA ring installation drawing (‘B’ section) 10
RESA ring installation 11
Taper mount method 11
Interference fit method 13
REXA ring installation drawing 14
REXA ring installation 15
Linear scales
Linear RESOLUTE readhead installation drawing with RSLA/RELA scale 17
Linear RESOLUTE side exit readhead installation drawing with RSLA/RELA scale 18
RSLA/RELA scale installation drawing 19
RSLA/RELA scale installation 20
Linear RESOLUTE readhead installation drawing with RTLA30-S scale 21
RTLA30-S scale installation drawing 22
RTLA30-S scale application 23
End covers 23
Datum clamp 23
Linear RESOLUTE readhead installation drawing with RTLA30 scale and FASTRACK carrier 24
RTLA30 scale and FASTRACK carrier installation drawing 25
RTLA30 scale and FASTRACK carrier installation 26
RESOLUTE readhead mounting and alignment 28
Linear scale technical specifications 29
Ring technical specifications 30
Electrical connections 31
RESOLUTE FS with BiSS Safety serial communications 32

RESOLUTE FS with BiSS ®Safety encoder system installation guide and safety manual 1 Original instructions
Product compliance
This document is an installation guide and safety manual, which details the actions required for the safe
integration of the RESOLUTE FS (Functional Safety) with BiSS ®Safety encoder system, as designated
by the SA or SL prefix in the part number, into a functionally safe system; this will be referred to as
RESOLUTE FS with BiSS Safety system in the below document.
The RESOLUTE FS with BiSS Safety system as defined below is suitable for use in a Category 3
performance level d (PLd) application in compliance with ISO 13849-1 and in a safety integrity level 2 (SIL2)
application in compliance with IEC 61508-1 and IEC 61800-5-2 when installed and operated in accordance
with the instructions defined.
Failure to follow the correct use instructions and heed the limitations may result in SIL2 and/or PLd
not being achieved and will invalidate the Functional Safety certification.
A copy of the RESOLUTE FS with BiSS Safety certificate is available from our website at
www.renishaw.com/productcompliance.
C
Renishaw plc declares that RESOLUTE FS with BiSS Safety system complies with the applicable standards
and regulations. A copy of the EU declaration of conformity is available from our website at
www.renishaw.com/productcompliance. For further details of FS compliance
see ‘Certification’ on page 4.
FCC compliance
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
The user is cautioned that any changes or modifications not expressly approved by Renishaw plc or
authorised representative could void the user’s authority to operate the equipment.
This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a commercial environment.
This equipment generates, uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at his own expense.
NOTE: This unit was tested with shielded cables on the peripheral devices. Shielded cables must be
used with the unit to ensure compliance.
Further information
Further information relating to the RESOLUTE FS with BiSS Safety encoder range can be found at
www.renishaw.com/safety-encoders and is also available from your local Renishaw representative.
This document may not be copied or reproduced in whole or in part, or transferred to any other
media or language, by any means without the written prior permission of Renishaw.
The publication of material within this document does not imply freedom from the
patent rights of Renishaw plc.
SIL2
FUNCTIONAL
SAFETY
PLd
Patents
Features of Renishaw’s encoder systems and similar products are the subjects of the following
patents and patent applications:
CN1260551 DE10296644 GB2395005 JP4008356 US7499827
CN102197282 EP2350570 JP5480284 KR1630471 US8505210
CN102388295 EP2417423 JP5659220 KR1701535 US10132657
CN102460077 EP2438402 JP5755223 JP6074392 KR1851015
US20120072169 US6465773 EP1094302 JP5442174 US6481115
CN1293983 DE10297440 GB2397040 JP4813018 US7723639
CN1314511 EP1469969 EP2390045 JP5002559 US8466943
US8987633 JP4423196 US7367128
Disclaimer
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.
The packaging of our products contains the following materials and can be recycled.
Packaging Component Material ISO 11469 Recycling Guidance
Outer box Cardboard Not applicable Recyclable
Polypropylene PP Recyclable
Inserts Low Density Polyethylene Foam LDPE Recyclable
Cardboard Not applicable Recyclable
Bags High Density Polyethylene Bag HDPE Recyclable
Metallised Polyethylene PE Recyclable
REACH regulation
Information required by Article 33(1) of Regulation (EC) No. 1907/2006 (‘REACH’) relating to products con-
taining substances of very high concern (SVHCs) is available at www.renishaw.com/REACH.
The use of this symbol on Renishaw products and/or accompanying documentation indicates that the
product should not be mixed with general household waste upon disposal. It is the responsibility of the end
user to dispose of this product at a designated collection point for waste electrical and electronic equipment
(WEEE) to enable reuse or recycling. Correct disposal of this product will help to save valuable resources
and prevent potential negative effects on the environment. For more information, please contact your local
waste disposal service or Renishaw distributor.

RESOLUTE FS with BiSS ®Safety encoder system installation guide and safety manual 2 Original instructions
Definitions
WARNING A hazard with a medium risk of injury if not avoided
ESD handling The ESD Susceptibility Symbol consists of a triangle, a reaching hand, and a slash
through the reaching hand. The triangle means ‘Caution’ and the slash through the
reaching hand means ‘Don’t touch’.
Mechanical safe position The maximum distance the scale might move from its installed position, for example
if the fixings work loose.
Evaluation unit External item of equipment in which the output signal of the encoder is evaluated,
e.g. machine controller or safety relay.
System manufacturer Personnel with responsibility for selecting the encoder and verifying its capability
is appropriate for the safety related application.
System installer Personnel with responsibility for fitting the encoder in the specific application.
Information for use
WARNING Not to be used in environments where there is an explosive atmosphere
WARNING Not to be used by medical devices
The RESOLUTE FS with BiSS Safety system is designed to be used as part of a safety-related control system as specified
by the system manufacturer. It is the responsibility of the system manufacturer to set the evaluation unit to implement the
appropriate actions when the RESOLUTE FS with BiSS Safety system reports an error. The decision to use this system for
the intended purpose is the responsibility of the system manufacturer. The RESOLUTE FS with BiSS Safety system is
certified to the SIL and PL levels as shown in the ‘Functional Safety data declaration’, however the system manufacturer
must conduct their own assessment of the full system to determine its safety capability.
Correct use includes:
Operating the RESOLUTE FS with BiSS Safety system within the limits defined in this document.
Installing the system as described in this document.
Maintaining the system as described in this document.
System components:
The RESOLUTE FS with BiSS Safety system comprises the following parts:
RESOLUTE FS with BiSS Safety readhead.
RESA ‘A’ section or ‘B’ section ring.
REXA ring.
RTLA30-S tape scale with end covers.
RTLA30 tape scale and FASTRACK carrier with end covers.
RSLA and RELA linear scale – adhesive mount only.
NOTES:
Rings retained by interference fit only (unbolted) are not approved for use with the RESOLUTE FS with
BiSS Safety encoder system.
Only RTLA30-S scale using end covers is functionally safe.
Only RTLA30/FASTRACK using end covers is functionally safe.
Clip mounting RELA/RSLA linear scale is not approved for use with the RESOLUTE FS with BiSS Safety encoder system.
If the original termination supplied with the RESOLUTE FS with BiSS Safety system is altered or an extension cable
used, then it is the responsibility of the system manufacturer to make sure the system is compliant with
IEC 61800-5-2 Annex E – Electromagnetic immunity requirement for safety related systems.
Functional Safety data declaration
Product identification RESOLUTE FS (Functional Safety) with BiSS Safety
MTTFD (years) 130
Diagnostic coverage Medium (90%)
Category 3
Performance level d
Lifetime/replacement limits 20
Safety integrity level 2
Random hardware
failures (per hour)
lS5.78 × 10−7
lD8.78 ×10−7
lDD 7.9 × 10−7
lDU 8.78 × 10−8
PFDavg Not available due to continuous demand mode
PFH (per hour) 8.78 × 10−8
Architectural
constraints
Type B
HFT 0
SFF 94%
Hardware safety
integrity compliance Route 1H
Systematic safety
integrity compliance Route 1S
Systematic capability SC 2
Demand mode Continuous
IEC61508 safety data
ISO13849 safety data

RESOLUTE FS with BiSS ®Safety encoder system installation guide and safety manual 3 Original instructions
Safety function
The RESOLUTE FS with BiSS Safety encoder system shall provide a safe position when requested
by the controller.
The following restrictions apply to this claim:
The system installer must perform a verified commissioning test during installation.
The system repairer must perform a verified commissioning test following replacement of system part.
The maximum request rate supported is 32 kHz.
The RESOLUTE FS with BiSS Safety system can support.
System
type
BiSS Safety
conguration
type*
CPW
(bits)
SPW
(bits)
CPW
Resolution
SPW
Resolution
Electrical
Error
Maximum
scale
length
Linear RSH 36 28 1 nm 256 nm 512 nm 21 m
Linear RSM 28 24 50 nm 800 nm 1.6 μm 13.4 m
Rotary LMM 32 32 0.0003” 0.0003” 0.0006” N/A
* BiSSSafety conguration types are dened in BiSS Safety concept document from iC-Haus.
NOTE: Electrical errors are detected by the evaluation unit comparing CPW and SPW content. See BiSS
Safety for RESOLUTE encoders Data Sheet (Renishaw part no. L-9517-9884) for more information.
When installed correctly, the RESOLUTE FS with BiSS Safety system has mechanical safe position of:
Linear systems: not exceeding 1 mm
Rotary systems: not exceeding 2.5°, refer to ‘Ring technical specifications’ on page 30.
NOTE: Thermal expansion effects of the scale and readhead mounting tolerances are excluded
from the mechanical safe position.
Fault Exclusions:
The following will invalidate the Functional Safety certification of the RESOLUTE FS system, see page 4:
Faults caused by cutting and reconnecting the readhead cable or extending the readhead cable.
Incorrect installation of the readhead.
Incorrect installation of the rotary and linear scale.
Dismantling of the RESOLUTE readhead.
Operating the system outside of the limits specified within this installation guide.
Failure modes effects and diagnostics analysis
All diagnosed failure modes are detected immediately except for a position discrepancy between the two
measurement methods which is detected within 375 μs.
See ‘Functional Safety data declaration’ on page 2 for a summary of the FMEDA.
NOTE: For the purposes of the FMEDA calculation the following conditions have been assumed:
Method: SN29500
Environment: Ground mobile
Temperature: 85 °C
Installation
For the safety function to be valid the instructions detailed in this installation guide must be followed.
Commissioning test
The following checks MUST be performed when commissioning the RESOLUTE FS with BiSS Safety
system and after any repair of the system:
Error bit check Power the encoder system and confirm that the error bit as received by the
BiSS Safety master is clear.
Place business card or similar between the readhead and the scale to block
the light path. Confirm that the error bit as received by the BiSS Safety
master is active.
Scale code check Move axis over its full travel and check that no errors are indicated. This check
needs to be performed at a traverse speed (circumferential speed for rotary) of
<2 m/s to ensure that the readhead checks every code written on the scale.
Position count direction Check that the position count direction is as expected.
Resolution check Move the axis by a known distance and confirm that the position changes
as expected. The tolerance for raising a fault condition is relative to the safe
position determined by the system manufacturer.
Evaluation unit monitoring
To achieve full system integrity the evaluation unit must continuously monitor the error condition of the
readhead as specified in the BISS Safety specification and, in the case of fault detection, place the system
into a safe state within the process safety time.
NOTES:
The evaluation unit must have its Functional Safety functions enabled
(as often it is a configuration parameter to turn on Functional Safety functionality).
A persistent fault condition may indicate a hardware failure of the RESOLUTE FS system
or an installation problem.
Maintenance
The maintenance check intervals will be defined by the system manufacturer according to their risk
assessment. There are no user serviceable parts within the readhead.
The following maintenance actions are advised:
Check the readhead to bracket screws are correctly tightened.
Check for worn or damaged cable connecting the readhead to the evaluation unit.
Check that the scale has not been damaged or contaminated. If required, clean the system using
approved solvents (see ‘Storage and handling’ on page 5).
NOTE: Do not retighten the screws securing the encoder ring as this will change the ring settings.
Repair
Repair of the RESOLUTE FS with BiSS Safety encoder system is only by replacement of parts.
The replacement parts must have the same part number as the original parts. The new encoder system
must be installed and commissioned in accordance with Renishaw's ‘Commissioning test’, on page 3.
In the event of failure the affected parts should be returned to Renishaw for further analysis.
Using damaged parts invalidates the Functional Safety certification.
Proof testing
It is the responsibility of the system manufacturer to define any proof testing of the system. Due to the
diagnostic coverage (DC) and safe failure fraction (SFF) required to achieve SIL2, the encoder can only
support continuous demand use.

RESOLUTE FS with BiSS ®Safety encoder system installation guide and safety manual 4 Original instructions
Certification
RESOLUTE FS with BiSS Safety encoder system
Funtional Safety Certificate No. FSC002
SIL2
FUNCTIONAL
SAFETY
PLd
Under the terms of CSA SIRA Functional Safety Certificate SIRA CASS00023/01, for the management and
self-certification of functional safety activities up to SIL3/PLd:
Renishaw plc declares that the products listed by this installation guide meet the requirements of:
BS EN IEC 61508-1:2010, BS EN IEC 61508-2:2010 and BS EN IEC 61508-3:2010
BS EN 61800-5-2:2017 (IEC 61800-5-2:2016)
BS EN ISO 13849-1:2015 and BS EN ISO 13849-2:2012
when used as an element/subsystem in safety related systems performing safety functions requiring up to
and including:
SIL2 with HFT = 0 (1oo1)
Category 3, PLd.
EC Declaration of conformity
Renishaw plc declares under its sole responsibility that the products identified below are in
conformity with all relevant Union legislation.
Product Name: RESOLUTE FS with BiSS Safety encoder system
Description: RESOLUTE optical encoder system, that is FS certified
Part number: Readheads:
Linear: SL28B*; SL36B*
Rotary: SA32B*
Valid from: Serial number 2HPJ17
The products comply with EU directives
2014/30/EU Electromagnetic compatibility (EMC)
2011/65/EU On the restriction of the use of certain hazardous substances
in electrical and electronic equipment (recast)
and comply with the following technical standards
BS EN 12100:2010 Safety of machinery. General principles for design.
Risk assessment and risk reduction
BS EN 61010-1:2010 Safety requirements for electrical equipment for measurement,
control, and laboratory use
Part 1: General requirements
BS EN 61326-1:2013 Electrical equipment for measurement, control and laboratory use.
EMC requirements. General requirements
Immunity to Table 2 - Industrial electromagnetic environment
Emissions to Class A - Industrial electromagnetic environment
BS EN 62471:2008 Photobiological safety of lamps and lamp systems
BS EN IEC 63000:2018 Technical documentation for the assessment of electrical
and electronic products with respect to the restriction of
hazardous substances
The persons authorised to compile the technical file and issue the declaration of conformity are:
Steve Oakes, Director and General Manager, Encoder Products Division
Martin Curtis, Regulatory Compliance Manager, Encoder Products Division
Renishaw plc, New Mills, Wotton-Under-Edge, Gloucestershire, GL12 8JR, United Kingdom
Signed: M. Curtis
Dated: 21/02/2020
Place: Wotton-Under-Edge
Reference No. EUD 2018-017

RESOLUTE FS with BiSS ®Safety encoder system installation guide and safety manual 5 Original instructions
Storage and handling
RESOLUTE RESA and REXA are non-contact optical encoders that provide good
immunity against contaminants such as dust, fingerprints and light oils. However, in
harsh environments such as machine tool applications, protection should be provided
to prevent ingress of coolant or oil.
N-heptane
CH3(CH2)5CH3
Propan-2-ol
CH3CHOHCH3
System
Acetone
CH3COCH3
Chlorinated
Solvents
Readhead only
Methylated
Spirits
Acetone
CH3COCH3
Methylated
Spirits
Chlorinated
Solvents
Ring/scale only
Storage Operating Humidity
95% relative humidity (non-condensing)
to IEC 60068-2-78
+80 °C
-20 °C
+80 °C
0 °C
Ring scale
Minimum
bend
radius
RSLA - 250 mm, RTLA30-S – 150 mm,
RTLA30 - 50 mm, FASTRACK - 200 mm
RELA - DO NOT BEND
NOTE: Ensure self-adhesive tape is on outside of bend
Linear scale

RESOLUTE FS with BiSS ®Safety encoder system installation guide and safety manual 6 Original instructions
*Extent of mounting faces
†0.1 mm on 52 mm rings
‡Minimum thread engagement 6 mm (9 including counterbore). Tightening torque 0.9 to 1.1 Nm
(Yaw tol. ±0.5°)
Set-up LED
6.5 min
36
18
12 14
2 mounting holes M3 through,
counterbored each side, 3 deep‡
0.31
R>20 Dynamic bend radius
R>10 Static bend radius
(Pitch tol. ±0.5°)
Ø4.7 ±0.2
3.8
Optical centreline
Rideheight 0.8 ±0.15†
18
Scale and optical centreline
3.25 ±1
8.6
6.4
16.5
(Roll tol. ±0.5°)
0.05
6 typ*
0.31
‘Forward’ direction of ring
(increasing count) irrespective
of readhead orientation
Rotary RESOLUTE readhead installation drawing
Dimensions and tolerances in mm
10>
10 typ*
(shown on RESA ring)

RESOLUTE FS with BiSS ®Safety encoder system installation guide and safety manual 7 Original instructions
(Yaw tol. ±0.5°)
Set-up LED
36
18
12
14
0.31
R>20 Dynamic bend radius
R>10 Static bend radius
(Pitch tol. ±0.5°)
Ø4.7 ± 0.2
3.25 ± 1
16.5
Optical centreline
Rideheight 0.8 ±0.15†
Scale and optical centreline
10 ±0.1
3.8†
(Roll tol. ±0.5°)
0.05
18
0.31
‘Forward’ direction of ring
(increasing count) irrespective
of readhead orientation
6.5 min
2 mounting holes M3 × 9 deep
counterbored 3 deep‡
6 typ*
35.9
7.5
Rotary RESOLUTE side exit readhead installation drawing
Dimensions and tolerances in mm
(shown on REXA ring)
*Extent of mounting faces
†0.1 mm on 52 mm rings
‡Minimum thread engagement 6 mm (9 including counterbore). Tightening torque 0.9 to 1.1 Nm
10 typ*

RESOLUTE FS with BiSS ®Safety encoder system installation guide and safety manual 8 Original instructions
Operating specifications - RESA and REXA rings
RESA taper mount RESA ‘A’ section interference fit RESA ‘B’ section interference fit
Ring diameter
(mm)
Max permissible
speed (rpm)
52 18300
57 16700
75 12700
100 9540
103 9270
104 9180
115 8300
150 5260
200 4280
206 4150
209 3900
229 3700
255 3340
300 2490
350 2110
413 1870
417 2170
489 1890
550 1640
Ring diameter
(mm)
Max permissible
speed (rpm)
52 5900
57 5200
75 3800
100 2700
103 2500
104 2400
115 2400
150 2100
200 1800
206 1700
209 1600
229 1500
255 1400
300 1300
350 1100
413 1000
417 770
489 670
550 580
Ring diameter
(mm)
Max permissible
speed (rpm)
52 8800
75 5600
100 4100
115 3600
150 3200
200 2700
Ring diameter
(mm)
Max permissible
speed (rpm)
52 7500
57 6400
75 5900
100 3900
103 3700
104 3600
115 3200
150 2300
183 2000
200 1800
206 1700
209 1700
229 1500
255 1300
300 1000
350 970
417 740
REXA flange mounted

RESOLUTE FS with BiSS ®Safety encoder system installation guide and safety manual 9 Original instructions
Dimensions and tolerances in mm
Nholes equally spaced on PCD ØDH Ø3.5 through
counterbore Ø6 × 3 deep
Nholes equally spaced on PCD ØDH M3 × 0.5 through
counterbore Ø3.5 × 4 deep
A
A
ØDI
ØDH
ØDO
θ
Ring rotation to give
increasing count
NOTE:θ is the angle between
one tapped hole and the adjacent
clearance hole.
The angle between two clearance
holes is 2θ.
NOTE: The scale zero position is
radially aligned with the centre of
the mounting hole to the left of the
‘Renishaw’ logo.
*NOTE:There are no tapped holes on the 489 mm ring
0.5 × 45°
1 × 45°
10
3
15°± 0.2°
Section A-A
IMPORTANT: RESOLUTE Functional Safety readheads must be used with
the correct size RESA ring. Ensure matching part numbers when ordering.
Nominal
external
diameter
(mm)
DO (mm) DI (mm)
Mounting holes
DH (mm) Nθθ
52 52.20
52.10
30.04
30.00 40 6 30°
57 57.35
57.25
37.04
37.00 47 6 30°
75 75.40
75.30
55.04
55.00 65 6 30°
100 100.30
100.20
80.04
80.00 90 6 30°
103 103.20
103.00
80.04
80.00 90 6 30°
104 104.40
104.20
80.04
80.00 90 6 30°
115 114.70
114.50
95.04
95.00 105 6 30°
150 150.40
150.20
130.04
130.00 140 9 20°
200 200.40
200.20
180.04
180.00 190 12 15°
206 206.50
206.10
186.05
186.00 196 12 15°
209 208.80
208.40
186.05
186.00 196 12 15°
229 229.40
229.00
209.05
209.00 219 12 15°
255 254.80
254.40
235.06
235.00 245 12 15°
300 300.40
300.20
280.06
280.00 290 16 11.25°
350 350.40
350.20
330.06
330.00 340 16 11.25°
413 412.70
412.30
392.08
392.00 402 18 10°
417 417.40
417.00
380.10
380.00 390 18 10°
489 489.12
488.72
451.10
450.90 462 20 18°*
550 550.20
549.80
510.10
510.00 520 20 9°
RESA ring installation drawing (‘A’ section)

RESOLUTE FS with BiSS ®Safety encoder system installation guide and safety manual 10 Original instructions
RESA ring installation drawing (‘B’ section)
Dimensions and tolerances in mm
Nholes equally spaced on PCD ØDH
Ø3.5 through
N holes equally spaced on PCD ØDH
M3 × 0.5 through
A
A
ØDI
ØDH
ØDO
θ
Ring rotation to give
increasing count
NOTE: The scale zero position is
radially aligned with the centre of
the mounting hole to the left of
the ‘Renishaw’ logo.
NOTE:θ is the angle between
one tapped hole and the adjacent
clearance hole.
The angle between two clearance
holes is 2θ.
Section A-A
2.5 × 45°
R0.5
7
6.5
3
Nominal
external
diameter
(mm)
DO (mm) DI (mm)
Mounting holes
DH (mm) Nθθ
52 52.20
52.10
32.04
32.00 36 6 30°
75 75.40
75.30
55.04
55.00 61 6 30°
100 100.30
100.20
80.04
80.00 86 6 30°
115 114.70
114.50
95.04
95.00 101 6 30°
150 150.40
150.20
130.04
130.00 136 9 20°
200 200.40
200.20
180.04
180.00 186 12 15°

RESOLUTE FS with BiSS ®Safety encoder system installation guide and safety manual 11 Original instructions
RESA ring installation
Recommended taper roundness
DO = Nominal external diameter
Recommended taper diameter (DT)
*Allow 2 mm for 417 mm, 489 mm and 550 mm rings only.
5 mm Max.
DT
15° ±0.2°
7 min
1*
Recommended surface finish ≤Ra 1.2
NOTE: It is recommended that the mounting surface is a turned, rather than ground finish.
Taper mount Interference fit
‘A’ section
'B' section
Not applicable
Notes Enables simplest adjustment
Offers highest accuracy
Enables eccentricity to be compensated.
Offers excellent mechanical stability against
thermal cycling, shock and vibration.
Minimises cost of substrate preparation.
Alternative installation
Will not correct eccentricity of the
supporting shaft
Diameter
(mm)
Roundness value
(mm TIR)
<52 0.025
150 to 255 0.050
≥300 0.075
DO
(mm)
DT
(mm)
52 33.85
33.65
57 40.85
40.65
75 58.85
58.65
100 83.85
83.65
103 83.85
83.65
104 83.85
83.65
115 98.85
98.65
150 133.85
133.65
200 183.85
183.65
206 189.85
189.65
DO
(mm)
DT
(mm)
209 189.85
189.65
229 212.85
212.65
255 238.85
238.65
300 283.85
283.65
350 333.85
333.65
413 395.85
395.65
417 383.85
383.65
489 454.85
454.65
550 513.85
513.65
Taper mount method
Step 1 Mounting shaft specifications
Mounting options

RESOLUTE FS with BiSS ®Safety encoder system installation guide and safety manual 12 Original instructions
Step 2
DTI
Use a non-contact or low force <0.04N DTI with
ruby ball to ensure scale surface is not marked.
Adjust the screws to reduce the range of radial displacement. When adjusting, identify the screw
location with the lowest radial displacement and tighten that screw, aiming for the average of the
highest and lowest indicator readings.
Repeat this process until the DTI readings are within ±5 μm at the screw locations.
NOTE: It may be necessary to loosen screws whilst tightening other screws.
NOTE: At this stage, the screws
should only be lightly tightened
(less than 0.5 Nm)
to allow further final adjustment.
Remove the protective film from the surface of the RESA.
Clean shaft taper and internal taper of RESA as
recommended in the storage and handling section.
Insert the first screws:
 For RESA rings with 6, 9 or 18 mounting holes,
use 3 equally spaced M3 screws.
 For RESA rings with 6, 9 or 18 mounting holes,
use 3 equally spaced M3 screws.
For RESA rings with 12, 16 or 20 mounting holes,
use 4 equally spaced M3 screws.
NOTES:
 Do not lubricate the screws
 Do not use a locking compound
 Recommended screw type is M3 × 0.5 and must
comply with: ISO 4762/DIN 912 grade 10.9
minimum/ANSI B18.3.1M.
 Minimum thread engagement is 6 mm.
Insert the screws so that the RESA is loosely
connected to the shaft, then roughly align the ring by
eye and touch.
Lightly tighten the screws. Use a Dial Test Indicator
(DTI) to check the radial displacement at the screw
locations.
NOTE: Disregard the radial displacement between the
screw locations.
Step 3
Insert the next screws:
For RESA rings with 6, 9 or 12 mounting holes,
insert all the remaining M3 screws.
For RESA rings with 16 mounting holes,
insert 4 equally spaced M3 screws.
For RESA rings with 18 mounting holes,
insert 6 equally spaced M3 screws.
For RESA rings with 20 mounting holes,
insert 8 equally spaced M3 screws (in four groups
of two) between existing screws.
As described in step 2, adjust all the screws inserted
thus far, so that the radial displacement at each screw
location is within ±5 µm.
Again, at this stage, the screws should only be lightly
tightened (less than 0.5 Nm).
NOTE: You may notice that the torque required to
achieve the radial displacement tolerance will be slightly
higher during step 3 than during step 2. This is normal.

RESOLUTE FS with BiSS ®Safety encoder system installation guide and safety manual 13 Original instructions
Step 5
Insert screws into the remaining mounting holes.
Rotate the RESA ring, measuring the radial displacement at all
of the screw locations.
Tighten the screw with the lowest radial displacement so that it
matches the average radial displacement, whilst ensuring the
maximum torque specied in the table is not exceeded.
Again, rotate the RESA ring and re-check the radial displacement
at all of the screw locations, tightening the screw with the lowest
radial displacement so that it matches the average.
Repeat this process until the radial displacement at all of the
screw locations is within ±3 µm and that all screw torques are
within the specied range.
Excessive tightening of screws can have a small effect on accuracy.
Please contact your local Renishaw representative for more details.
Diameter
(mm)
Recommended
torque range
(Nm)
≤115 1.5 - 2.1
150 to 255 0.8 - 1.1
300 to 413 0.5 - 0.7
≥417 1.2 - 1.7
Step 4
DO DS
NOTE: 417, 489 and 550 mm rings
should be taper mounted only.
DO = Nominal external diameter
DS = Recommended shaft diameter
to enable interference fit
*52 mm ‘B’ section ring = 32.033
32.017
Remove the protective lm from the surface of the RESA
Clean the mounting faces of shaft and RESA as
recommended in ‘Storage and handling’ on page 5
NOTES:
Do not lubricate the screws
Do not use a thread locking compound
Ensure that all screws are tightened to 1.6 Nm
Minimum thread engagement is 6 mm
Recommended screw type is M3 ×0.5 and must comply
with: ISO 4762/DIN 912 grade 10.9 minimum/ANSI B18.3.1M
Mounting shaft specifications DO (mm) DS (mm)
52*30.033
30.017
57 37.033
37.017
75 55.039
55.020
100 80.045
80.023
103 80.045
80.023
104 80.045
80.023
115 95.045
95.023
150 130.052
130.027
200 180.052
180.027
206 186.060
186.031
209 186.060
186.031
229 209.060
209.031
255 235.060
235.031
300 280.066
280.034
350 330.073
330.037
413 392.073
392.037
Interference fit method

RESOLUTE FS with BiSS ®Safety encoder system installation guide and safety manual 14 Original instructions
REXA ring installation drawing
Dimensions and tolerances in mm
θ
Nholes Ø6 through
equi-spaced
10 ±0.1*
*Graduations are centred within this dimension
† 52 mm and 57 mm rings have dimple fiducial features and no slots.
Ring rotation to give
increasing count
6
Scale
0.25
A
A
D2D1D3
D4
Section A-A
Fiducial marks,
4 positions,
to aid installation
NOTE: The scale zero position
is radially aligned with the
centre of the mounting
hole to the left of the
‘Renishaw’ logo.
Scale centreline
Nominal
external
diameter
(mm)
Dimensions Holes
D1 D2 D3 N D4 θθ
52†26 50 52.1 - 52.2 4 38 90°
57†26 50 57.25 - 57.35 4 38 90°
75 40.5 64.5 75.3 - 75.4 8 52.5 45°
100 57.5 97.5 100.2 - 100.3 8 77.5 45°
103 57.5 97.5 103.0 - 103.2 8 77.5 45°
104 57.5 97.5 104.2 - 104.4 8 77.5 45°
115 68 108 114.5 - 114.7 8 88 45°
150 96 136 150.2 - 150.4 8 116 45°
183 122.5 162.5 183.2 - 183.4 12 142.5 30°
200 136 176 200.2 - 200.4 12 156 30°
206 140.5 180.5 206.1 - 206.5 12 160.5 30°
209 140.5 180.5 208.4 - 208.8 12 160.5 30°
229 160.5 200.5 229.0 - 229.4 12 180.5 30°
255 180.5 220.5 254.4 - 254.8 12 200.5 30°
300 216 256 300.2 - 300.4 12 236 30°
350 256 296 350.2 - 350.4 16 276 22.5°
417 305 345 417.0 - 417.4 16 325 22.5°

RESOLUTE FS with BiSS ®Safety encoder system installation guide and safety manual 15 Original instructions
REXA ring installation
REXA should be flange mounted onto a flat surface, this
eliminates all installation errors except eccentricity, which
can be compensated using twin readheads.
Although taper mounting is best for thin cross-section
rings, it is not suitable for thick cross-section
REXA rings.
 The REXA ring should be ange mounted onto a
at surface to minimise 2-per-rev distortion.
Some eccentricity of the ring is acceptable because it
will be compensated by the use of twin readheads.
To avoid distorting the scale, the REXA should not be
interference tted.
Mounting shaft preparation
There is a mounting face on the lower side of the
REXA ring. A flat surface should be prepared on the
mounting shaft to match. The total axial run-out of the
mounting surface should be better than 10 µm.
A
A
A
(<D1- 0.75)
D4
D2
0.01
Ø 0.2
For dimensions D1, D2, D3, D4 and number of holes N,
please refer to ring drawing.
D4
D1
D3
Step 2
Mounting method
Dimple or slot
indicates
fiducial mark
DO NOT INTERFERENCE FIT
N × M5 × 0.8
× 10 deep
Remove the protective lm from the surface of the REXA.
Clean the mounting face on the lower side of the REXA.
Clean the mating surface on the mounting shaft.
Place the REXA onto the mounting shaft, then insert
four off M5 screws with flat washers into the four screw
holes by the fiducial marks. DO NOT tighten the screws
at this point – simply engage the threads ensuring that
the heads do not touch the ring.
NOTES:
Do not lubricate the screws
Do not use a thread locking compound
 Recommended screw type is M5 x 0.8 and
must comply with: ISO 4762/DIN 912 grade
10.9 minimum/ANSI B18.3.1M.
 Minimum thread engagement is 10 mm.
Set up a Dial Test Indicator (DTI) to measure the
run-out on the REXA ring.
NOTE: Use a DTI with low contact force to avoid
scratching the scale surface.
A DTI with a ruby ball stylus is recommended as a
further precaution against scratches.
Rotate the ring through 360°making a note of the high
and low readings.
NOTE: At this stage the ring is not firmly fixed, so to
avoid causing the ring to shift position, rotate the ring
slowly and smoothly.
Where the DTI shows the lowest radius reading, gently
tap the opposite side of the ring on the edge using a
rubber mallet, until the DTI reading is approximately at
the ‘mid point’ of the run-out.
Now nd the new lowest radius reading and again tap
the opposite side of the ring with a rubber mallet until
the DTI reading is at the ‘mid point’ of the run-out.
Continue this process until the run-out of the ring is
approximately 30 µm (0.0012 inches). This is the initial
adjustment. Now adjust to 10 µm at the ducial points.
Step 1

RESOLUTE FS with BiSS ®Safety encoder system installation guide and safety manual 16 Original instructions
Step 3
Re-check the run-out at the two ‘slot’ ducial points, to ensure the run-out at the two ‘slot’ points
is still better than 10 µm. Adjust if necessary.
Gradually tighten the 4 screws, a quarter-turn at a time, so as to avoid moving the position of
the ring. Finally, insert the remaining M5 screws and torque all the screws to 4 Nm.
Re-check the run-out at the two ‘slot’ ducial points, then at the two ‘dimple’ ducial points.
The run-out values at the ‘slot’ ducial points do not have to match the run-out values at the
‘dimple’ ducial points. If the ring has moved position outside the 10 µm limit, the screws must
be loosened and the ring adjusted.
Step 5
Adjust ring position until the
DTI (Dial Test Indicator) reading
at these points agrees to 10 µm.
‘Slot’ fiducial
‘Slot’ fiducial
Step 4
Now adjust the ring position until the
DTI (Dial Test Indicator) reading
at these points agrees to 10 µm.
‘Dimple’ fiducial
‘Dimple’ fiducial

RESOLUTE FS with BiSS ®Safety encoder system installation guide and safety manual 17 Original instructions
Linear RESOLUTE readhead installation drawing with RSLA/RELA scale
Dimensions and tolerances in mm
(Yaw tol. ±0.5°)
Set-up LED
0.31
14.9 ±0.2
Scale and optical centreline
*Extent of mounting faces.
† Minimum thread engagement 6 mm (9 mm including counterbore). Tightening torque 0.9 to 1.1 Nm.
‡Readhead shown on RELA scale
6 typ*
36
18
12 14 2 mounting holes M3 through,
counterbored each side, 3 deep†
0.31
R>20 Dynamic bend radius
R>10 Static bend radius
(Pitch tol. ±0.5°)
Ø 4.7 ±0.2
Optical centreline
18
0.8 ±1
16.5
(Roll tol. ±0.5°)
0.05 Rideheight 0.8 ±0.15
6.5 min
8.6
3.8
1.7 (Adhesive mounting) RSLA
1.8 (Adhesive mounting) RELA
6.4 10 typ*
‡

RESOLUTE FS with BiSS ®Safety encoder system installation guide and safety manual 18 Original instructions
Linear RESOLUTE side exit readhead installation drawing with RSLA/RELA scale
Dimensions and tolerances in mm
18
Scale centreline
16.5
(Roll tol. ±0.5°)
0.05
36
18
0.31
(Pitch tol. ±0.5°)
Optical centreline
Rideheight 0.8 ±0.15
5.9
7.5
3 typ
12
14 2 mounting holes
M3 x 8.5 deep
(counterbored 3 deep)†
10 typ*
0.31
(Yaw tol. ±0.5°)
Set-up LED
R>20 Dynamic bend radius
R>10 Static bend radius
Ø4.7±0.2
6.5 min
14.9 ±0.2
6 typ*
8.25 ±1
6.5 ±0.5
1.7 (Adhesive mounting) RSLA
1.8 (Adhesive mounting) RELA
*Extent of mounting faces.
† Minimum thread engagement 6 mm (9 mm including counterbore). Tightening torque 0.9 to 1.1 Nm.
‡Readhead shown on RELA scale
‡