Renishaw XR20 User manual

#renishaw
User guide
www.renishaw.com/xr20
XR20 rotary axis calibrator

Contents
Legal information ...............................................3
Safety information............................................... 9
Safety warnings ...........................................9
Battery safety ............................................ 10
Mechanical safety......................................... 11
Laser optical safety .......................................11
System overview .............................................. 12
System components............................................13
CARTO software suite .....................................14
Setting up a test ...............................................16
Setting up the hardware ...................................16
XM system set-up......................................... 18
XL system set-up ......................................... 20
Bluetooth®set-up for XR20 rotary axis calibrator ................. 23
Bluetooth®set-up for XR20-W rotary axis calibrator ..............24
Feedrate ................................................ 25
Different mounting congurations............................. 26
Set-up errors ............................................31
Diagnostics and troubleshooting ..................................35
XR20 fault-nding.........................................35
Status LEDs ............................................. 36
Care and handling .............................................37
Recalibration ............................................37
Calibration certicate ...................................... 38
Care and maintenance.....................................38
Storage and environmental specication .......................39
Cleanliness of optics ......................................39
System specication............................................ 40
Power supply: XR20 .......................................42
Power supply: rechargeable battery ...........................43
Weights and dimensions ...................................45
2XR20 rotary axis calibrator

Legal information
Warranty
Unless you and Renishaw have agreed and signed a separate written
agreement, the equipment and/or software are sold subject to the Renishaw
Standard Terms and Conditions supplied with such equipment and/or software,
or available on request from your local Renishaw ofce.
Renishaw warrants its equipment and software for a limited period (as set out
in the Standard Terms and Conditions), provided that they are installed and
used exactly as dened in associated Renishaw documentation. You should
consult these Standard Terms and Conditions to nd out the full details of your
warranty.
Equipment and/or software purchased by you from a third-party supplier is
subject to separate terms and conditions supplied with such equipment and/or
software. You should contact your third-party supplier for details.
3www.renishaw.com

International regulations and conformance
UK and EC compliance for XR20
Renishaw plc hereby declares that the radio equipment type XR20 is in
compliance with:
• EU directive 2014/53/EU.
• The relevant statutory instruments under UK radio law.
The full text of the declaration of conformity is available at:
www.renishaw.com/calcompliance
In compliance with IEC 61010-1:2010 and IEC 61010-1:2010/AMD1:2016, the
product is safe to use in the following environmental conditions:
• Indoor use only
• Altitude up to 2000 m
• Maximum relative humidity (non-condensing) of 80% for
temperatures up to 31 °C, decreasing linearly to 50%
relative humidity at 40 °C
• Pollution degree 2
EC compliance for XR20-W
Renishaw plc declares that the XR20-W system complies with the applicable
directives, standard and regulations. The full text of the declaration of
conformity is available at: www.renishaw.com/calcompliance
In compliance with BS EN 61010-1:2010, the product is safe to use in the
following environmental conditions:
• Indoor use only
• Altitude up to 2000 m
• Maximum relative humidity (non-condensing) of 80% for
temperatures up to 31 °C, decreasing linearly to 50%
relative
humidity at 40 °C
• Pollution degree 2
4XR20 rotary axis calibrator

Disposal of waste electrical and electronic equipment
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.
Disposal of batteries
The use of this symbol on the batteries, packaging or
accompanying documents indicates that used batteries should
not be mixed with general household waste. Dispose of the
used batteries at a designated collection point. This will prevent
potential negative effects on the environment and human health
which could otherwise arise from inappropriate waste handling.
Contact your local authority or waste disposal service concerning the separate
collection and disposal of batteries. All lithium and rechargeable batteries must
be fully discharged or protected from short circuiting prior to disposal.
Packaging
Packaging
components
Material Material
abbreviation
Material
numerical code
Internal box Cardboard – 70% recycled
material
PAP 20
Outer box Cardboard – 70% recycled
material
PAP 20
Insert Cardboard PAP 20
Bag Low density polyethylene LDPE 4
REACH regulation
Information required by Article 33(1) of Regulation (EC) No. 1907/2006
(“REACH”) relating to products containing substances of very high concern
(SVHCs) is available at: www.renishaw.com/REACH
China RoHS
For more information on China RoHS, visit: www.renishaw.com/calcompliance
5www.renishaw.com

XR20 radio communications
Bluetooth®LE 5.0 device
Output power: 0 dBm nominal; 4 dBm maximum
Frequency band: 2.402 GHz to 2.480 GHz
Bluetooth®transmission range: 10m typical operation
For details of national radio approvals for this device, see the Compliance
with radio device regulations document on the Calibration product quality and
conformance web pages.
Further radio approval country-specic statements can be found below:
Japan
This equipment contains a radio module, approved for use in the Japanese
market.
Radio model Name Certificate number
ISP1507 Bluetooth low-energy module 207-161SP5
Mexico
La operación de este equipo está sujeta a las siguientes dos condiciones:
(1) es posible que este equipo o dispositivo no cause interferencia perjudicial y
(2) este equipo o dispositivo debe aceptar cualquier interferencia, incluyendo la
que pueda causar su operación no deseada.”
Brazil
Para maiores informações, consulte o site da Anatel – www.gov.br/anatel/pt-br
Este equipamento não tem direito à proteção contra interferência prejudicial e
não pode causar interferência em sistemas devidamente autorizados.
Taiwan
低功率電波輻性電機管理辦法
第十二條經型式認證合格之低功率射頻電機，非經許可，公司、商號或使用者均不
得擅自變更頻率、加大功率或變更原設計之特性及功能。
第十四條低功率射頻電機之使用不得影響飛航安全及干擾合法通信；經發現有干擾
現象時，應立即停用，並改善至無干擾時方得繼續使用。前項合法通信，指依電信
規定作業之無線電信。低功率射頻電機須忍受合法通信或工業、科學及醫療用電波
輻射性電機設備之干擾 。
6XR20 rotary axis calibrator

XR20-W radio communications
Class 2 Bluetooth®device
Output power: 0 dBm maximum; 3 dBm maximum
Frequency band: 2.402 GHz to 2.480 GHz
Bluetooth®transmission range: 10 m typical operation
For details of national radio approvals for this device, see the Compliance
with radio device regulations document on the Calibration product quality and
conformance web pages.
Further radio approval country specic statements can be found below:
Mexico
La operación de este equipo está sujeta a las siguientes dos condiciones:
(1) es posible que este equipo o dispositivo no cause interferencia perjudicial y
(2) este equipo o dispositivo debe aceptar cualquier interferencia, incluyendo la
que pueda causar su operación no deseada.
Brazil
Frequency bandwidth (MHz): 2400 Mhz to 2483 MHz
Modulation: GFSK
Output power (W): 0.0676 W
00740-13-02812
Para maiores informações, consulte o site da Anatel – www.gov.br/anatel/pt-br
Este equipamento não tem direito à proteção contra interferência prejudicial e
não pode causar interferência em sistemas devidamente autorizados.
Taiwan
低功率電波輻性電機管理辦法
第十二條經型式認證合格之低功率射頻電機，非經許可，公司、商號或使用者均不
得擅自變更頻率、加大功率或變更原設計之特性及功能。
第十四條低功率射頻電機之使用不得影響飛航安全及干擾合法通信；經發現有干擾
現象時，應立即停用，並改善至無干擾時方得繼續使用。前項合法通信，指依電信
規定作業之無線電信。低功率射頻電機須忍受合法通信或工業、科學及醫療用電波
輻射性電機設備之干擾 。
7www.renishaw.com

USA and Canadian regulations
FCC notice
47 CFR section 15.19
This device complies with Part 15 of the FCC rules. Operation is subject to the
following conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received, including interference
that may cause undesired operation.
47 CFR section 15.21
The user is cautioned that any changes or modications, not expressly
approved by Renishaw plc or authorised representative, could void the user’s
authority to operate the equipment.
47 CFR section 15.105
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 their own expense.
Canada – Innovation, Science and Economic Development
Canada (ISEC)
This device contains licence-exempt transmitter(s)/receiver(s) that comply with
Innovation Science and Economic Development Canada’s licence-exempt
RSS(s). Operation is subject to the following two conditions: (1) this device
may not cause interference, and (2) this device must accept any interference,
including interference that may cause undesired operation of the device.
Le présent appareil est conforme aux ISEC applicables aux appareils radio
exempts de licence. L’exploitation est autorisée aux deux conditions suivantes:
(1) l’appareil ne doit pas produire de brouillage, et (2) l’utilisateur de l’appareil
doit accepter tout brouillage radioélectrique subi, même si le brouillage est
susceptible d’en compromettre le fonctionnement.
8XR20 rotary axis calibrator

Safety information
WARNING: Use of controls or adjustments or performance of procedures other
than those specied herein may result in hazardous radiation exposure.
Ensure that you read and understand the XR20 user guide before using any
XR20 system.
The XR20 rotary axis calibrator can be used in a variety of environments and
applications. To ensure the safety of the user and other personnel in the vicinity,
it is therefore paramount that a comprehensive risk assessment is carried out
for the machine under test before using the XR20 rotary axis calibrator.
This should be carried out by qualied users (requiring machine competency,
applicable technical knowledge and a trained risk assessor) with consideration
for the safety of all personnel. The risks identied must be mitigated prior to
using the product. The risk assessment should pay particular attention to
machine, manual handling, mechanical, laser, electrical, power and bre optic
safety.
Based on current research, the wireless devices used in this product would
not seem to pose a signicant health risk for the vast majority of pacemaker
wearers. However, people with pacemakers may want to ensure a minimum
distance of 3 cm between the product and pacemaker.
Safety warnings
The XR20 rotary axis calibrator system is designed to be used to test machine
tools. As such, the user will need to prepare and run a part program which
moves the machine as required. Do not spin the optics. It is assumed
therefore that the user is thoroughly familiar with the operation of the
machine tool and its controller and knows the location of all emergency stop
switches. Also, if it is necessary to operate the machine with the guards or
any safety feature removed or disabled, it is the responsibility of the operator
to ensure that alternative safety measures are taken in line with the machine
manufacturer’s operating instructions or relevant codes of practice. Safety
procedures should be in accordance with the user’s risk assessment.
The XR20 device works in conjunction with a Renishaw laser system. Before
using the laser system, read the safety section of the relevant laser user guide.
The XR20 can reect the laser beam from the laser around the room as it
rotates. Consideration should be given to other users working in the area.
If this equipment is used in a manner not specied by the manufacturer, the
protection provided by the equipment may be impaired.
9www.renishaw.com

Battery safety
This product is supplied with rechargeable lithium ion batteries. Refer to the
battery manufacturer’s literature for specic battery operating, safety and
disposal guidelines.
• Use only the charger supplied with the product to recharge the batteries.
• Replace the batteries only with the specied type.
• Do not mix batteries with different states of charge in the product.
• Do not mix different types or brands of batteries within the product.
• Ensure that all batteries are always inserted with the correct polarity
in accordance with the instructions in this manual and indicated on the
product.
• Do not store the batteries in direct sunlight
• Do not expose the batteries to water.
• Do not expose the batteries to heat or dispose of the batteries in a re.
• Avoid forced discharge of the batteries.
• Do not short circuit the batteries.
• Do not disassemble, apply excessive pressure, pierce, deform or subject
the batteries to impact.
• Do not swallow the batteries.
• Keep the batteries out of the reach of children.
• If the batteries are swollen or damaged do not use them in the product and
exercise caution when handling them.
• Dispose of waste batteries in accordance with your local environmental
and safety laws.
Ensure that you comply with international and national battery transport
regulations when transporting batteries or this product with the batteries
inserted. Lithium ion batteries are classied as dangerous goods for
transportation and require labelling and packaging in accordance with the
dangerous goods regulations before being offered for transportation. To reduce
the risk of shipment delays, should you need to return this product to Renishaw
for any reason, do not return any batteries.
10 XR20 rotary axis calibrator

Mechanical safety
• When setting up and mounting Renishaw laser calibration equipment,
beware of pinch and/or crush hazards that may be created; for example,
due to magnetic mounting bases.
• Beware of trip hazards that may be created when using Renishaw
equipment; for example, due to trailing cables.
• Exercise caution if components are to be mounted to moving or rotating
machinery. Beware of cables becoming entangled.
• Exercise extreme caution if Renishaw equipment is to be mounted to
machinery that may accelerate rapidly or move at high speed, which could
lead to items colliding or being ejected.
• If it is necessary to operate the machine with the guards or any safety
feature removed or disabled, it is the responsibility of the operator to
ensure that alternative safety measures are taken in line with the machine
manufacturer’s operating instructions or relevant codes of practice.
• If you are using a part program or error-correction parameters generated
by Renishaw software, it is the responsibility of the user to validate these
at low feedrate and be prepared to operate the emergency stop button if
necessary.
Laser optical safety
• In accordance with (IEC) EN60825-1, Renishaw XL-80 and XM systems
used to provide a laser source for XR20 are class 2M lasers and safety
goggles are not required (under normal circumstances the eye will blink
and look away before damage can occur).
• Do not stare directly into the laser beams or view them with optical
equipment such as telescopes, convergent mirrors or binoculars, as
permanent retinal damage could occur.
• Do not direct the beam at other people or into areas where people
unconnected with the laser might be present. It is safe to view a diffuse-
reected beam during system alignment..
11www.renishaw.com

System overview
XR20 is a rotary axis calibrator designed for measuring rotary axes. Key
features include:
• Compatible with Renishaw XL-80 or XM systems.
• Compact and lightweight.
• Quick and simple mounting system.
• Easy alignment with built-in alignment aid.
• Wireless operation by utilising Bluetooth communication.
• Battery-powered (can be powered by external USB if required).
Figure 1: Typical set-up for calibrating a rotary axis using XL-80 as the laser reference
Figure 2: Typical set-up for calibrating a rotary axis using XM as the laser reference
The CARTO data capture software uses both the measured angle and the
position from the XR20 internal encoder scale to very accurately measure
the positioning performance of the table under test. The rotation of an axis
is calibrated by rotating it sequentially through a number of angular targets,
pausing at each dened target to capture a reading. As the axis rotates, the
software counter-rotates the XR20 to ensure that the laser beam is returned
to the laser, maintaining signal strength.
12 XR20 rotary axis calibrator

System components
6
7
5
2
3
4
1
1XR20
2Chuck adaptor
3Centration aid
4Mounting ring
5Mounting ring adaptor
6Battery Li-Polymer × 3
7Battery charger
13www.renishaw.com

CARTO software suite
The XR20 rotary axis calibrator is used with the CARTO software suite which
comprises two applications: Capture to collect laser inferometry data and
Explore to provide powerful analysis.
www.renishaw.com/carto
14 XR20 rotary axis calibrator

Mounting ring
The mounting ring bolts or clamps directly to the surface of the machine and
locks the XR20 in position.
Mounting ring adaptor plate
The mounting ring adaptor plate enables the XR20 to be tted to rotary tables
with unsuitable centre recesses. It can also be used to secure the XR20
rotary axis calibrator to the chuck adaptor and custom mounts.
Chuck adaptor
The chuck (lathe) adaptor has a 40 mm diameter to t most chuck sizes.
It can also be used to secure the XR20 to custom mounts.
Centration aid
The centration aid allows the mounting ring to be easily centred to the axis
of rotation of the machine under test before the XR20 rotary axis calibrator is
mounted to the machine.
15www.renishaw.com

Setting up a test
Setting up the hardware
CAUTION: Before proceeding, read the safety section.
1. Prepare the machine for calibration. Remove all tools from the spindle of
the machine and retract them into the tool holder.
2. Ensure surfaces are clean and free of swarf, debris and burrs.
3. Ensure that the laser beam can reach the rotary table without obstruction.
4. The XR20 requires a dened test method to be entered into the machine
tool controller via a part program. The test method and part program can
be generated from the CARTO software. For further information, see the
CARTO Capture user guide (Renishaw part no. F-9930-1007).
5. Ensure that the PC is Bluetooth-enabled and that the CARTO software is
installed. See the Bluetooth set-up section for more information.
6a. For XL-80 use, mount the laser head on the stage and tripod. Turn on the
laser to begin stabilisation.
CAUTION: For safety, the shutter of the laser must be rotated to its closed
position before commencing.
6b. For XM system use, suspend the XM launch unit within the machine
environment and switch on the laser unit to begin stabilisation.
CAUTION: For safety, the shutter of the XM launch must be rotated to its
closed position before commencing.
16 XR20 rotary axis calibrator

WARNING: Both XL-80 and XM laser systems are classied as Class 2 and
safety goggles are not required (under normal circumstance the eye will blink
and look away before damage can occur).
Refer to the relevant laser system manual.
7 Connect the laser to the PC. To monitor the environment during calibration,
plug the environmental compensator in to the PC. Place the temperature
sensors in suitable positions on or around the machine and connect them
to the environmental compensator. For more information on setting up the
laser and environmental compensator, refer to the relevant laser system
user guide.
8. Before mounting the XR20 to the rotary axis, ensure the mounting ring
and XR20 facing ring are clean and free of swarf, debris and burrs. See
the Care and handling section for more information.
9. Alignment of the rotary table can be carried out visually with the centration
aid from the XR20 kit or by using a dial test indicator (DTI). The centration
of the mounting ring should be aligned to the following specication:
XL-80 laser use < ±1 mm:
XM laser system use < ±0.25 mm:
10. Once aligned, x the mounting to the axis using bolts mounted through
the mounting holes into the machine’s T-slots. If the T-slots do not pass
under the mounting holes, toe clamps may need to be used. Remove the
centration aid.
17www.renishaw.com

11. Switch on the XR20 to check the battery power: a green LED indicates
sufcient battery power. Switch off the XR20 to conserve battery
power. If the LED is amber, change the battery. See the power supply:
rechargeable battery section for more details and the Diagnostics and
trouble shooting section for a full list of LED states.
12. Attach the XR20 to the mounting ring. Ensure the clamp levers are
released (in the up position). Align the red spot on the facing ring with
the red spot on the mounting ring so that the slots in the facing ring are
aligned with the clamps. Lower the facing ring onto the table surface,
then rotate the XR20 clockwise until the clamps are aligned above the
clamping surfaces.
6. Lock the clamp levers down to secure the XR20.
For XL-80, proceed to page 20.
XM system set-up
1. Attach the beam blocker to the front of the XM launch unit.
1Beam blocker
1
2. Translate the laser launch horizontally and vertically so that the laser beam
hits the target on the alignment aid as shown:
18 XR20 rotary axis calibrator

3. Observe the reected beam on the launch beam blocker. Adjust the pitch of
the launch so that the reected beam is on the centre line.
1Beam aperture
2Reected beam
2
1
4. Translate vertically to align the beam again as shown in step 2.
5. Turn the XR20 optics so that the retroreectors are pointing towards the
laser to within ±2°.
NOTE: If it is difcult to access the optics, use the 180° rotation feature in the
software. Refer to the jog function section in the CARTO Capture software for
more details.
XM system set-up is complete; proceed to page 23.
19www.renishaw.com

XL system set-up
1. For XL-80 use, assemble the magnetic base, optics mounting kit and
angular interferometer optic and attach to the machine spindle as shown.
In this example, the input aperture of the angular interferometer is on the
right-hand side. See the Optical set-up section for alternative mounting
schemes. Refer to the XL laser system user guide (Renishaw part number
F-9908-0683) for more information on the optics mounting kit and angular
interferometer.
1
3
2
4
1Mounting pillar
2Magnetic mount
3Clamp block
4Angular interferometer
2. Move the machine in X, Y and Z using the handwheel to provisionally
position the angular interferometer between the laser and the XR20. The
angular interferometer should be relatively close to the XR20 angular
reector to optimise measurement performance, but ensure that it cannot
collide during the test. Ensure that the angular interferometer’s input
aperture is aligned with the right-hand retroreector in the angular reector.
3. Using the machine’s handwheel, raise the interferometer, attached to the
spindle, in Z only. To maintain alignment between the XR20 and the angular
interferometer, do not move it in X or Y.
4. Rotate the alignment aid on the back of the angular reector so that it faces
the laser.
NOTE: If it is difcult to access the angular reector, it can be moved using the
jog functions in CARTO Capture.
5. Position the laser and tripod in front of the machine. To simplify set-up,
use a level on the top of the laser to ensure that the laser is level and so
nominally perpendicular to the machine’s axis of rotation.
6. Rotate the laser shutter to the 6 mm beam alignment position.
1Beam aperture
2Target
1
2
20 XR20 rotary axis calibrator