Renishaw RMP24 User manual

#renishawwww.renishaw.com/rmp24-micro
RMP24-micro radio machine probe
Installation guide

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Contents
Before you begin ...................................................................1-1
Trade marks ........................................................................1-1
Warranty ...........................................................................1-1
CNC machines ......................................................................1-1
Care of the probe ....................................................................1-1
Patents ............................................................................1-2
Declaration of conformity ..............................................................1-2
Disposal of waste electrical and electronic equipment (WEEE) .................................1-3
REACH regulation ...................................................................1-3
RMP24-micro software notices..........................................................1-4
US government notice ...........................................................1-4
Renishaw software EULA.........................................................1-4
RMP24-micro software licensing agreement ..........................................1-4
Safety .............................................................................1-5
Radio approval ......................................................................1-7
RMP24-micro basics ................................................................2-1
Introduction.........................................................................2-1
Getting started ......................................................................2-1
System interface.....................................................................2-2
Trigger Logic™ ......................................................................2-2
Probe modes .......................................................................2-2
Trigger lter.........................................................................2-2
Partnering mode.....................................................................2-3
Switch-on time (congured by RMI-QE) ...................................................2-3
RMP24-micro dimensions .............................................................2-4
RMP24-micro specication.............................................................2-5
Typical battery life ....................................................................2-6
System installation..................................................................3-1
Installing the RMP24-micro with an RMI-QE ...............................................3-1
Operating envelope .............................................................3-1
Positioning the RMP24-micro and RMI-QE ...........................................3-2
Performance envelope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
Preparing the RMP24-micro for use......................................................3-3
Fitting the stylus ................................................................3-3
Installing the batteries ...........................................................3-4
Mounting the probe on a shank ....................................................3-6

ii RMP24-micro
Calibrating the RMP24-micro ...........................................................3-7
Why calibrate a probe? ..........................................................3-7
Calibrating in a bored hole or on a turned diameter.....................................3-7
Calibrating in a ring gauge or on a datum sphere ......................................3-8
Calibrating the probe length .......................................................3-8
Probe conguration .................................................................4-1
Reviewing the probe settings ......................................................4-1
Probe partnering function.........................................................4-2
RMP24-micro – RMI-QE partnership ................................................4-4
Changing the probe settings when partnered to an RMI-QE ..............................4-6
Master reset function ............................................................4-8
Operating mode ...............................................................4-11
Maintenance .......................................................................5-1
Maintenance........................................................................5-1
Cleaning the probe ...................................................................5-1
Fault-nding .......................................................................6-1
Parts list ..........................................................................7-1

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Before you begin
Trade marks
Google Play and the Google Play logo are trademarks of Google LLC.
Apple and the Apple logo are trademarks of Apple Inc., registered in the U.S. and other countries. App
Store is a service mark of Apple Inc., registered in the U.S. and other countries.
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.
CNC machines
CNC machine tools must always be operated by fully-trained personnel in accordance with the
manufacturer’s instructions.
Care of the probe
Keep system components clean and treat the probe as a precision tool.

1-2 RMP24-micro: Before you begin
Patents
Features of the RMP24-micro, and other similar Renishaw products, are the subject of one or more of the
following patents and/or patent applications:
Other patents pending
Declaration of conformity
Renishaw plc hereby declares that the radio equipment type RMP24-micro radio machine probe is in
compliance with:
• Directive 2014/53/EU, the Radio Equipment Directive.
• UK SI 2017 No. 1206, the Radio Equipment Regulations 2017.
The full text of the declaration of conformity is available at:
www.renishaw.com/mtpdoc
C
CN 100416216
CN 100466003
CN 101476859
CN 101482402
EP 1457786
EP 1576560
EP 1613921
EP 1931936
IN 215787
IN 234921
IN 8707/DELNP/2008
IN WO2004/057552
JP 4575781
JP 4852411
JP 5238749
US 6941671
US 7145468
US 7285935
US 7316077
US 7486195
US 7665219
US 7812736
WO 2022/219305
WO 2022/219306
WO 2022/219307

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Disposal of waste electrical and electronic equipment (WEEE)
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, contact your
local waste disposal service or Renishaw distributor.
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

1-4 RMP24-micro: Before you begin
RMP24-micro software notices
The RMP24-micro probe includes embedded software (rmware) to which the following notices apply:
US government notice
NOTICE TO UNITED STATES GOVERNMENT CONTRACT AND PRIME CONTRACT CUSTOMERS
This software is commercial computer software that has been developed by Renishaw exclusively at
private expense. Notwithstanding any other lease or licence agreement that may pertain to, or accompany
the delivery of, this computer software, the rights of the United States Government and/or its prime
contractors regarding its use, reproduction and disclosure are as set forth in the terms of the contract
or subcontract between Renishaw and the United States Government, civilian federal agency or prime
contractor respectively. Please consult the applicable contract or subcontract and the software licence
incorporated therein, if applicable, to determine your exact rights regarding use, reproduction and/or
disclosure.
Renishaw software EULA
Renishaw software is licensed in accordance with the Renishaw licence at:
www.renishaw.com/legal/softwareterms
RMP24-micro software licensing agreement
The RMP24-micro probe includes the following third-party software:
BSD 3-Clause Licence
Copyright © 2009 – 2015 ARM LIMITED. All rights reserved.
Redistribution and use in source and binary forms, with or without modication, are permitted provided
that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this list of conditions and the
following disclaimer.
2. Redistributions in binary form, except as embedded into a Nordic Semiconductor ASA integrated
circuit in a product or a software update for such product, must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the documentation and/or other materials
provided with the distribution.
3. Neither the name of ARM nor the names of its contributors may be used to endorse or promote
products derived from this software without specic prior written permission.

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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS”
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Intended use
The RMP24-micro is a miniature radio spindle probe that enables automated workpiece inspection and job
set-up on small machining centres.
Safety
Information to the user
This product is supplied with non-rechargeable lithium metal-coin cell batteries. Refer to the battery
manufacturer’s literature for specic battery operating, safety and disposal guidelines.
• Do not attempt to recharge the batteries.
• Replace the batteries only with the specied type.
• Do not mix new and used batteries in the product.
• Do not mix different types or brands of batteries in the product.
• Ensure that all batteries are 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.

1-6 RMP24-micro: Before you begin
• 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 the
batteries or this product with the batteries inserted. Lithium metal 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 for any reason, do not return any batteries.
In all applications involving the use of machine tools, eye protection is recommended.
The RMP24-micro has a plastic window. Handle with care if broken to avoid injury.
Information to the machine supplier / installer
It is the machine supplier’s responsibility to ensure that the user is made aware of any hazards involved in
operation, including those mentioned in Renishaw product literature, and to ensure that adequate guards
and safety interlocks are provided.
If the probe system fails, the probe signal may falsely indicate a probe seated condition. Do not rely on
probe signals to halt the movement of the machine.
Information to the equipment installer
All Renishaw equipment is designed to comply with the relevant UK, EU and FCC regulatory requirements.
It is the responsibility of the equipment installer to ensure that the following guidelines are adhered to, in
order for the product to function in accordance with these regulations:
Any interface MUST be installed in a position away from any potential sources of electrical noise (for
example, power transformers, servo drives).
• All 0V/ground connections should be connected to the machine “star point” (the “star point” is a single
point return for all equipment ground and screen cables). This is very important and failure to adhere
to this can cause a potential difference between grounds.
• All screens must be connected as outlined in the user instructions.
• Cables must not be routed alongside high current sources (for example, motor power supply cables),
or be near high-speed data lines.
• Cable lengths should always be kept to a minimum.
Equipment operation
The probe may reset when subjected to an extreme electrostatic discharge (ESD) event. To ensure self
recovering operation under these circumstances, congure the RMI-QE into Level start.
If this equipment is used in a manner not specied by the manufacturer, the protection provided by the
equipment may be impaired.

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Radio approval
Country name Logo
EU, EFTA,
Montenegro, Turkey:
UK
C

1-8 RMP24-micro: Before you begin
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RMP24-micro basics
Introduction
The RMP24-micro is a new generation radio transmission probe that is compatible for application with the
RMI-QE radio machine interface.
The RMP24-micro enables automated workpiece inspection and job set-up on small multi-tasking
machines and machine centres. It is ideally suited to machining centres where line-of-sight between probe
and receiver is difcult to achieve or where Z travel is limited.
The probe features an integrated probe module delivering exceptional robustness and generous
overtravel.
The probe operates in the 2.4 GHz band and delivers interference-free transmission through the use of
hybrid FHSS (frequency-hopping spread spectrum) technology, which allows multiple systems to operate
in the same machine shop without risk of cross-interference.
All probe settings are congured using Trigger Logic™. This technique enables the user to review and
subsequently change probe settings.
Congurable settings are:
• Trigger filter setting
Getting started
A multicolour LED provides visual indication of selected probe settings and status.
• Trigger filter setting
• Probe status – triggered or seated
• Battery condition
Batteries are inserted or removed as shown (for more information, see page 3-4, “Installing the
batteries”).
On insertion of batteries, the LED will begin to flash starting with an LED check (for more information, see
page 4-1, “Reviewing the probe settings”). An LED check displaying double flashes of red, green, blue
indicates that the probe is operating with an RMI-QE.

2-2 RMP24-micro: RMP24-micro basics
System interface
The RMI-QE is an integrated interface/receiver used to communicate between the probe and the machine
controller. For more details, refer to the RMI-QE radio machine interface installation guide (Renishaw part
no. H-6551-8520).
It is necessary that the RMP24-micro is partnered to an RMI-QE.
NOTE: The RMP24-micro (model RMP24MICQE) probe is not compatible with the older RMI integrated
interface/receiver.
Trigger Logic™
Trigger Logic™ (for more information, see page 4-1, “Reviewing the probe settings”) is a method
that allows the user to view and select all available mode settings in order to customise a probe to suit
a specic application. Trigger Logic is activated by battery insertion and uses a sequence of stylus
deections (triggering) to systematically lead the user through the available choices to allow selection of
the required mode options.
Current probe settings can also be reviewed by simply removing the batteries for a minimum of 5
seconds, and then replacing them to activate the Trigger Logic review sequence (for more information, see
page4-1, “Reviewing the probe settings”).
Probe modes
The RMP24-micro can be in one of three modes:
Standby mode – Probe is waiting for a switch-on signal.
Operational mode – When activated, via radio communication with the RMI-QE, the probe is switched on
and ready for use.
Conguration mode – Ready to change the probe settings using Trigger Logic.
Trigger lter
Probes subjected to high levels of vibration or shock loads may output signals without having contacted
any surface. The trigger lter improves the probes resistance to these effects.
Level 1 disables the trigger lter.
Level 2 adds a nominal 10 ms delay to the output.
Factory set to Level 1 (off).

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Partnering mode
System set-up is achieved using Trigger Logic and powering-on the RMI-QE. Alternatively “ReniKey” may
be used (see notes below).
Partnering is required during initial system set-up. Further partnering is only required if the probe or
RMI-QE is changed.
NOTES:
Prior to partnering for the rst time, the LED check will display double ashes of red, green, blue.
Systems using the RMI-QE can be partnered with up to four RMP24-micro manually. Alternatively,
partnering to an RMI-QE, can be achieved by using ReniKey; a Renishaw machine macro cycle which
does not require the RMI-QE to be power cycled.
For more information or to download ReniKey free of charge visit:
www.renishaw.com/mtpsupport/renikey
Partnering will not be lost by reconguration of probe settings or when changing batteries.
Partnering can take place anywhere within the operating envelope.
Switch-on time (congured by RMI-QE)
When the RMP24-micro radio machine probe is used with an RMI-QE, the turn-on time can be congured
(in the interface) to either “fast” or “standard”. For best battery life, select ‘standard’ turn-on time.
A timer automatically switches the probe off 90 minutes after the last probe status change if not turned off
by an M-code.
NOTE: After being switched on, the RMP24-micro must be on for 1.0 second minimum before being
switched off.

2-4 RMP24-micro: RMP24-micro basics
RMP24-micro dimensions
Dimensions given in mm (in)
Stylus overtravel limits
Stylus length ±X/±Y +Z
30 (1.18) 9.3 (0.37) 4 (0.16)
10 (0.39) 4.5 (0.18) 4 (0.16)
8.5 (0.33)10.0 (0.39)
M2 stylus
14° 14°
20.3 (0.80)
31.4 (1.24)
Ø24 (0.94)
A range of probe-ready shanks
is available from Renishaw

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RMP24-micro specication
Principal application Workpiece inspection and job set-up on small machining centres and
multi-tasking machines
Dimensions Length
Diameter (maximum)
31.4 mm (1.24 in)
24 mm (0.94 in)
Weight (without shank) With batteries
Without batteries
37 g (1.29 oz)
33 g (1.16 oz)
Transmission type Frequency-hopping spread spectrum (FHSS) radio
Radio frequency 2400 MHz to 2483.5 MHz
Switch-on / methods Radio M-code
Switch-off methods Radio M-code
Spindle speed (maximum) 1000 r/min
Recommended styli Steel lengths 10 mm (0.39 in) to 30 mm (1.18 in)
Operating range Up to 5 m (16.4 ft)
Receiver/interface RMI-QE combined antenna, interface and receiver unit
Sense directions Omni-directional ±X, ±Y, +Z
Unidirectional
repeatability
Maximum 2σvalue in any
direction
0.35 µm (14 µin) 2σ 1
Stylus trigger force 2 3
XY low force
XY high force
Z
0.08 N, 8.2 gf (0.29 ozf)
0.16 N, 16.3 gf (0.58 ozf)
0.75 N, 76.5 gf (2.70 ozf)
Stylus overtravel 4XY plane
+Z plane
±14°
4 mm (0.16 in)
Environment 5IP rating IPX8, BS EN 60529:1992+A2:2013
IK rating IK02 BS EN IEC 62262: 2002
Storage temperature −25 °C to +70 °C (−13 °F to +158 °F)
Operating temperature +5 °C to +55 °C (+41 °F to +131 °F)
1Performance specication is tested at a standard test velocity of 480 mm/min (18.89 in/min) with a 10 mm stylus. For best
performance probing feedrates of up to 100 mm/min (3.94 in/min) and back-off feed of greater than 1000 mm/min
(39.34 in/min) are recommended.
2 Trigger force, which is critical in some applications, is the force exerted on the component by the stylus when the probe
triggers. The maximum force applied will occur after the trigger point (overtravel). The force value depends on related
variables including measuring speed, machine deceleration and system latency.
3 These are the factory settings; manual adjustment is not possible.
4 Stylus overtravel is designed to protect the probe and stylus from a collision. We do not recommend utilising the extent of
travel in normal probing mode.
5 With the battery cap removed the sealing rating is not applicable.

2-6 RMP24-micro: RMP24-micro basics
NOTES:
Battery life gures quoted in the above table are applicable to the probe when used in conjunction with
an RMI-QE interface/receiver.
1% usage = 14 minutes/day.
5% usage = 72 minutes/day.
Battery life is dependent on the quality of the external RF environment in which the probing system is
operating.
Typical battery life
Typical battery type 2 × CR1632 Li/MnO2
Typical battery
life
Radio on
(1 s turn-on) (0.5 s turn-on)
Standby life 6.5 months 3.6 months
Light usage 1% 5.5 months 3.3 months
Heavy usage 5% 3.4 months 2.4 months
Continuous use 246 hours 246 hours
Battery types 2 × CR1632 lithium manganese dioxide (Li/MnO2)
Battery reserve life Approximately one week after a low battery warning is rst given (based
on 5% usage)
Low battery indication Blue ashing LED in conjunction with normal red or green probe status
LED
Dead battery indication Constant or ashing red
Typical battery life See the table on page 2-6

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System installation
Installing the RMP24-micro with an RMI-QE
CNC machining
centre spindle
RMP24-micro
radio machine probe
RMI-QE
interface
CNC
machine
controller
Cable
Workpiece
Stylus
Operating envelope
Radio transmission does not require line-of-sight between the probe and transmitter, and will pass through
very small gaps and machine tool windows. This allows easy installation inside the machine, as long as
the probe and RMI-QE are kept within the performance envelope shown on page 3-2.
Coolant and swarf residue accumulating on the probe and RMI-QE may have a detrimental effect on
transmission performance. Wipe clean as often as is necessary to maintain unrestricted transmission.
When operating, do not cover the probes window or RMI-QE with your hands, as this will affect the
performance.

3-2 RMP24-micro: System installation
Positioning the RMP24-micro and RMI-QE
The probe system should be positioned so that the optimum range can be achieved over the full travel of
the machine’s axes. Always face the front cover of the RMI-QE in the general direction of the machining
area and the tool magazine, ensuring both are within the performance envelope shown below. To assist in
nding the optimum position of the RMI-QE, the signal quality is displayed on an RMI-QE signal LED.
Performance envelope
The probe and RMI-QE must be within each other’s performance envelope, as shown below. The
performance envelope shows line-of-sight performance, however, this is not necessary for the probes radio
transmission as it will operate with any reected radio path provided that the reected path length does not
exceed the 5m (16.4 ft) operating range
Typical plot at +20 °C (+68 °F)
Transmission range in m (ft)
Performance envelope when using the RMP24-micro with the RMI-QE
Operating and switch-on / switch-off
75°
60°
45°
30°
15°
0°
15°
30°
45°
60°
75° 90° 75°
60°
45°
30°
15°
45°
60°
75°
0°
15°
30°
1
(3)
3
(10)
5
(16)
RMP24-micro
0°
15°
75°
60°
45°
30°
30°
45°
60°
75°
3 (10)
5 (16)
1 (3)
1 (3)
3 (10)
5 (16)
15°
RMI-QE