Renishaw MI16 433 User Guide

MI16 433 MHz LP USA

MP18 Probe System

selectable channel radio transmission

Installation and User's Guide

2

FCC DECLARATION USA

FCC ID: KQG MI16-433

PATENTS

Features of the MP18 Probe With Channel Selectable Radio Transmission are the
subject of the patents and patent applications listed below :

EP 108521 JP 326, 001/1992 US 4, 599, 524
EP 501680 JP 89, 397/1993 US 4, 636, 960
EP 506318 JP 1, 847, 335 US 4, 636, 960
EP 652413 JP 1, 942, 442 US 5, 272, 817

This product has been tested to the following European Standards
I-ETS 300 220 (October 1993)
ETS 300 683 (June 1997)

FCC DECLARATION (USA)
FCC Section 15.19
This device complies with Part 15 of the
FCC rules.
Operation is subject to the following two
conditions:

1. This device may not cause harmfull
interference.

2. This device must accept any interference
received, including interference that may
cause undesired operation.

FCC 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,

3

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 you will be required to correct
the interference at your own expense.

FCC Section 15.21
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.

FCC Section 15.27
The user is also cautioned that any peripheral
device installed with this equipment such as a
computer, must be connected with a high
quality shielded cable to insure compliance
with FCC limits.

4

GB SAFETY

Beware of unexpected movement. The user should remain outside
of the full working envelope of probe head/extension/probe combinations.

Handle and dispose of batteries according to the manufacturer’s
recommendations. Use only the recommended batteries.
Do not allow the battery terminals to contact other metallic objects.

For instructions regarding the safe cleaning of Renishaw products,
refer to the Maintenance section of the relevant product documentation.

Remove power before performing any maintenance operations.

Refer to the machine supplier’s operating instructions.

The unit must be supplied from a 24V DC SELV supply complying with
the essential requirements of BS EN 61010 or similar specification.

D SICHERHEITSANWEISUNGEN

Auf unerwartete Bewegungen achten. Der Anwender soll sich immer
außerhalb des Meßtasterkopf-Arm-Meßtaster-Bereichs aufhalten.

Batterien immer gemäß den Anleitungen des Herstellers handhaben und
diese vorschriftsmäßig entsorgen. Nur die empfohlenen Batterien
verwenden. Die Batterieklemmen nicht in Kontakt mit metallischen
Gegenständen bringen.

Anleitungen über die sichere Reinigung von Renishaw-Produkten sind in
Kapitel MAINTENANCE (WARTUNG) in der Produktdokumentation
enthalten.

Bevor Wartungsarbeiten begonnen werden, muß erst die Stromversorgung
getrennt werden.

Beziehen Sie sich auf die Wartungsanleitungen des Lieferanten.

Die Einheit muß von einer Schutzkleinspannungsversorgung mit 24V DC
gespeist werden, die den wesentlichen Anforderungen von BS EN 61010
oder einer ähnlichen Norm entspricht.

DK SIKKERHED

Pas på uventede bevægelser. Brugeren b¢r holde sig uden for hele
sondehovedets/ forlængerens/ sondens arbejdsområde.

Håndtér og bortskaf batterier i henhold til producentens anbefalinger.
Anvend kun de anbefalede batterier. Lad ikke batteriterminalerne
komme i kontakt med andre genstande af metal.

Se afsnittet MAINTENANCE (VEDLIGEHOLDELSE)
i produktdokumentationen for at få instruktioner
til sikker reng¢ring af Renishaw-produkter.

Afbryd str¢mforsyningen, f¢r der foretages vedligeholdelse.

Se maskinleverand¢rens brugervejledning.

Enheden skal forsynes fra en 24 V d.c. SELV (Separat ekstra lav spænding)
netspænding, der efterlever de vigtige krav i BS EN 61010 eller lignende
specifikation.

E SEGURIDAD

Tener cuidado con los movimientos inesperados. El usuario debe quedarse
fuera del grupo operativo completo compuesto por la cabeza de sonda/
extensión/sonda o cualquier combinación de las mismas.

Las baterías deben ser manejadas y tiradas según las recomendaciones
del fabricante. Usar sólo las baterías recomendadas. No permitir que los
terminales de las mismas entren en contacto con otros objetos metálicos.

Para instrucciones sobre seguridad a la hora de limpiar los productos
Renishaw, remitirse a la sección titulada MAINTENANCE
(MANTENIMIENTO) en la documentación sobre el producto.

Quitar la corriente antes de emprender cualquier operación de
mantenimiento.

Remitirse a las instrucciones de manejo del proveedor de la máquina.
La unidad debe de ser alimentada desde un alimentador .V c.c. SELV

(Tensión Extra Baja Separada) que cumpla con los requisitos esenciales
de BS EN 61010 o una especificación similar.

F SECURITE

Attention aux mouvements brusques. L’utilisateur doit toujours rester
en dehors de la zone de sécurité des installations multiples tête de
palpeur/rallonge/palpeur.

Suivre les conseils du fabricant pour manipuler et jeter les batteries.
Utiliser uniquement les batteries recommandées. Veiller à ce que les
bornes de la batterie n’entrent pas en contact avec d’autres objets
métalliques.

Les conseils de nettoyage en toute sécurité des produits Renishaw
figurent dans la section MAINTENANCE de votre documentation.
Mettre la machine hors tension avant d’entreprendre toute opération
de maintenance.

Consulter le mode d’emploi du fournisseur de la machine.
L’appareil doit être alimenté par un courant continu de 24V SELV

(voltage ultra-faible séparé), conformément aux exigences primordiales
de la norme BS EN 61010 ou d’une spécification semblable.

5

FIN TURVALLISUUTTA

Varo äkillistä liikettä. Käyttäjän tulee pysytellä täysin anturin pään/jatkeen/
anturin yhdistelmiä suojaavan toimivan kotelon ulkopuolella.

Käytä paristoja ja hävitä ne valmistajan ohjeiden mukaisesti.
Käytä ainoastaan suositeltuja paristoja. Älä anna paristonapojen koskettaa
muita metalliesineitä.

Renishaw-tuotteiden turvalliset puhdistusohjeet löytyvät tuoteselosteen
MAINTENANCE (HUOLTOA) koskevasta osasta.

Kytke pois sähköverkosta ennen huoltotoimenpiteitä.
Katso koneen toimittajalle tarkoitettuja käyttöhjeita.
Laite virta on kytkettävä 24V d.c. SELV (Separated Extra Low

Voltage - Erotettu erityisen alhainen jännite) -virtaverkkoon standardin
BS EN 61010 tai vastaavan spesifikaation asettamien perusvaatimusten

6

GR

I SICUREZZA

Fare attenzione ai movimenti inaspettati. Si raccomanda all’utente di tenersi
al di fuori dell’involucro operativo della testina della sonda, prolunghe e altre
varianti della sonda.

Trattare e smaltire le pile in conformità alle istruzioni del fabbricante.
Usare solo pile del tipo consigliato. Evitare il contatto tra i terminali delle
pile e oggetti metallici.

Per le istruzioni relative alla pulizia dei prodotti Renishaw, fare riferimento
alla sezione MAINTENANCE (MANUTENZIONE) della documentazione
del prodotto.

Prima di effettuare qualsiasi intervento di manutenzione, isolare
dall’alimentazione di rete.

Consultare le istruzioni d’uso del fabbricante della macchina.
L’unità deve essere alimentata da un’alimentazione di 24V C.C.

(Tensione Bassa Separata Extra) conforme agli essenziali requisiti
della NS EN 61010 o analoghe specifiche.

NL VEILIGHEID

Oppassen voor onverwachte beweging. De gebruiker dient buiten het
werkende signaalveld van de sondekop/extensie/sonde combinaties
te blijven.

De batterijen volgens de aanwijzingen van de fabrikant hanteren en wegdoen.
Gebruik uitsluitend de aanbevolen batterijen. Zorg ervoor dat de poolklemmen
niet in contact komen met andere metaalhoudende voorwerpen.

Voor het veilig reinigen van Renishaw produkten wordt verwezen naar het
hoofdstuk MAINTENANCE (ONDERHOUD) in de produktendocumentatie.
Voordat u enig onderhoud verricht dient u de stroom uit te schakelen.

De bedieningsinstructies van de machineleverancier raadplegen.
De stroomtoevoer naar de eenheid moet gebeuren via een 24V gelijkstroom

SELV (Separated Extra Low Voltage - Afzonderlijke extra lage spanning)
voeding, overeenkomstig de belangrijkste vereisten van de Britse norm
BSEN61010 of een gelijksoortige standaard.

P SEGURANÇA

Tomar cuidado com movimento inesperado. O utilizador deve permanecer
fora do perímetro da área de trabalho das combinações cabeça da sonda/
extensão/sonda.

Manusear e descartar baterias de acordo com as recomendações do
fabricante. Utilizar apenas as baterias recomendadas. Não permitir que os
terminais da bateria entrem em contacto com outros objectos metálicos.

Para instruções relativas à limpeza segura de produtos Renishaw, consultar
a secção MAINTENANCE (MANUTENÇÃO) da documentação do produto.

Desligar a alimentação antes de efectuar qualquer operação de
manutenção.

Consultar as instruções de funcionamento do fornecedor da máquina.

A unidade deve ser abastecida de um abastecimento SELV (Separated
Extra Low Voltage) (baixa voltagem extra separada) de 24 V. c.d., em
conformidade com os requisitos essenciais da norma BS EN 61010 ou de
outra especificação semelhante.

7

SW SÅKERHET

Se upp för plötsliga rörelser. Användaren bör befinna sig utanför
arbetsområdet för sondhuvudet/förlängningen/sond-kombinationerna.

Hantera och avyttra batterier i enlighet med tillverkarens rekommendationer.
Använd endast de batterier som rekommenderas.
Låt ej batteriuttagen komma i kontakt med andra metallföremål.

För instruktioner angående säker rengöring av Renishaws produkter,
se avsnittet MAINTENANCE (UNDERHÅLL) i produktdokumentationen.

Koppla bort strömmen innan underhåll utförs.

Se maskintillverkarens bruksanvisning.

Enheten måste strömförsörjas från en SELV-källa (Separated Extra Low
Voltage - Separat extra låg spänning) på 24 volt likström, som uppfyller
huvudkraven i BS EN 61010, eller motsvarande specifikation.

CONTENTS

8

SYSTEM DESCRIPTION

System description… … … … … … … … 9

Features … … … … … … … … … 9

System operation … … … … … … … … 9

System components … … … … … … … 10

System specification … … … … … … … 11

MP18 and MP18-S PROBES

MP18 probe/shank … … … … … … … … 12

MP18-S probe/shank … … … … … … … 13

MP18 probe/shank assembly … … … … … 14

MP18 stylus on centre adjustment … … … … … 14

MP18-S stylus on centre adjustment … … … … 15

RMM2 ANTENNA

Operating envelope and installation … … … … … 16

MI16 INTERFACE

Page No.

MI16 front panel … … … … … … … … 18

MI16 rear panel … … … … … … … … 19

MI16 audio diagnostics … … … … … … … 20

MI16 output waveforms … … … … … … … 20

MI16 panel mounting kit … … … … … … 20

PSU3 POWER SUPPLY UNIT …… …… … 21
OM16 OPTICAL MODULE ………………22
MI18 BATTERY POWER ………………24
MODES OF OPERATION ………………25
MODE AND CHANNEL SELECTION …… …… … 26
PROGRAMMING THE MI16 INTERFACE …………26
RADIO FREQUENCY AND CHANNEL SEPERATION ……27
PROGRAMMING THE PROBE RMP3 MODULE …… … 28
MAINTENANCE

Stylus spring pressure adjustment … … … … … 29

Diaphragm inspection and replacement … … … … 30

Screw torque values … … … … … … … 31

PARTS LIST … … … … … … … … 32-33
ADDENDUM 1 - compatibility with other systems … … … 34
ADDENDUM 2 - shank manufacture for MP18 … … … 35

ADDENDUM 3 - selection of MI16 sensitivity ... ... ... 36

SYSTEM DESCRIPTION

The MP18 Probe is used for job set up and workpiece measurement
on CNC machine tools. Signal transmission between transmitters and
recievers is non line of sight. The radio channel is selectable and signal
transmission range is up to distances of 3m (9.8ft).

9

FEATURES

● Transmission of the probe trigger
signal using FM radio transmission
at 433MHz frequency.

● User selection of the transmission
channel (up to 69 available),
permits many systems to operate
in close proximity, with no
interference between systems.

● Switch on - switch off mode.

● Two receivers to provide cover for

signal transmission dead spots.

● M code switch on and off of the probe,
using an optional optical transmitter
module (OM16).

SYSTEM OPERATION

The probe assembly is stored in the machine
tool changer as any other tool, and is transferred
to the machine spindle for probing routines.

The probe head acts as an omni-directional switch
and is effective in the ± X, ±Y and +Z directions.

During operation, the probe stylus is driven
against a workpiece feature. On contact the radio
module probe (RMP3) transmits a probe signal to
the two radio modules machine (RMM2), using
frequency modulated (FM) radio waves.

The signal then passes via cable to the MI16
interface and onto the CNC machine control,
thereby recording the stylus contact position in
the machine tool registers. Two different contact
positions enable features to be measured.

Probing software is available from Renishaw

10

radio module machine

RMM2 x 2

SYSTEM COMPONENTS

Machine spindle

MP18-S

typical

shank

Shank
switch

Shank
adaptor

MP18

typical

shank

MP18

probe

MI16

interface unit

CNC

machine

control

COMPONENT DESCRIPTION

MP18 probe
Shank for MP18

MP18-S probe
Shank for MP18-S

PSU3 power supply unit

optional

Probe head + RMP3 radio module probe + shank adaptor for MP18.
Probe ready shanks are available from Renishaw.

Probe head + RMP3 radio module probe + shank adaptor for MP18 -S.
Custom shanks are supplied on application to Renshaw Custom
Products Department. MP18-S shanks incorporate a shank switch
which switches the probe on, when it is placed in the machine spindle.

RMP3
radio
module
probe

Probe

head

OM16

optical
module
optional

Workpiece

Machine table

MP18 shank adaptor
MP18-S shank adaptor

RMM2 with side
or rear cable exit

MI16
machine interface

OM16 - optional
optical module

PSU3 - optional
power supply unit

Probe to shank adaptor plate (Part No. A-2107-0031).
Probe to shank adaptor plate (Part No. A-2249-0134).

Radio Module Machine - transmits and receives signals
between machine control and Radio Module Probe (RMP3).

Signals received by the RMM2, pass via coaxial cable to the MI16
machine interface, which decodes and converts them into solid state
relay (SSR) outputs for use by the machine tool’s CNC controller.

An M code causes the OM16 optical transmission module, to send
probe switch on/off signal to the RPM3.

The MI16 draws 24V DC power from the CNC machine and presents
a load of up to 500mA. If this supply is not available from the machine
power can be supplied by a Renishaw PSU3 power supply unit.

SPECIFICATION

dimensions mm (in)

PROBE REPEATABILITY

Maximum 2 Sigma (2

Repeatability of 1,0µm (0.00004in) is valid for
test velocity of 480mm/min (1.57ft/min) at
stylus tip, using stylus 50mm (1.97in) long.

σσ

σ) Value

σσ

11

21,5mm

(0.85in)

SENSE DIRECTIONS and
STYLUS TRIGGER FORCE

Set at factory using stylus 50mm (1.97in) long.
X and Y trigger forces vary around the stylus
seating.
X and Y direction - lowest force 0,75N

75gf
(2.64oz)

X and Y direction - highest force 1,4N

140gf
(4.92oz)

Z direction force 4,9N

490gf
(17.28oz)

PROBE SEALING

IPX8 (BS 5490, IEC 529) 100kPa

(1 atmosphere).

SYSTEM DELAYS

The time delay from the probe stylus contacting
the workpiece, and the MI16 machine interface
providing an output signal to the CNC controller
is 12ms ±10µs.

17.5° 17.5°

X/Y

STYLUS OVERTRAVEL LIMITS

ENVIRONMENT

PROBE/RMP3

MI16 INTERFACE

Storage -20°C to 60°C

Stylus
length

50mm

(1.96in)

100mm
(3.93in)

RMM2

OM16

X - Y

21,5mm

(0.84in)

36,5mm

(1.43in)

TEMPERATURE

(-4°F to 140°F)

Z

Z

8mm

(0.31in)

8mm

(0.31in)

RADIO FREQUENCIES and TRANSMISSION RANGE

Region

USA

Nominal

transmission

frequency

433 MHz

.

Number of

transmission

channels

69

Operating 0°C to 40°C

(32°F to 104°F)

Channel

separation

25 KHz

Transmission

range

3m (9.8ft)

12

(0.35in)

95mm

(3.74in)

9mm

Taper
shank

MP18

dimensions mm (in)

Shank adaptor

RMP3

Ø62

(Ø2.24)

TAPER SHANK

The shank is attached to the
RMP3 using a shank adaptor.
Part No. A-2107-0031.

The method of attachment
is the same as used for other
Renishaw probes (MP7, MP8,
MP9 and MP10 compact
optical probes).

Shank assembly is shown

B

A

on page 14.
Probe ready shanks are

available from Renishaw.
Shank modification details for

shanks obtained from other

85

(3.35)

sources are given on page 35.

29

(1.14)

22

(0.87)

Ø48 (Ø1.89)

17.5° 17.5°

Ø6 (Ø0.24)

21,5

(0.85)

switch on/off

Stylus
length

Probe-ready shanks available from Renishaw

Please quote the Part No. when ordering equipment

Shank Part No. Taper A B

DIN 2080

DIN 69871

ANSI B5.50

1985 (CAT)

M-2045-0132 30 20,0 (0.787) 9,6 (0.378)
M-2045-0024 40 13,6 (0.535) 11,6 (0.457)
M-2045-0025 45 15,2 (0.598) 15,2 (0.598)
M-2045-0026 50 15,2 (0.598) 15,2 (0.598)

M-2045-0064 30 35,25 (1.388) 19,0 - 19,1 (0.748 - 0.752)
M-2045-0065 40 35,25 (1.388) 19,0 - 19,1 (0.748 - 0.752)
M-2045-0066 45 35,25 (1.388) 19,0 - 19,1 (0.748 - 0.752)
M-2045-0067 50 35,25 (1.388) 19,0 - 19,1 (0.748 - 0.752)

M-2045-0137 40 35,25 (1.388) 19,0 - 19,1 (0.748 - 0.752)
M-2045-0138 45 35,25 (1.388) 19,0 - 19,1 (0.748 - 0.752)
M-2045-0139 50 35,25 (1.388) 19,0 - 19,1 (0.748 - 0.752)

M-2045-0077 30 27,5 (1.083) 27,5 (1.083)

BT

M-2045-0027 40 32,0 (1.260) 32,0 (1.260)
M-2045-0038 45 33,0 (1.299) 33,0 (1.299)
M-2045-0073 50 38,0 (1.496) 38,0 (1.496)

LED x 4

optical

PROGRAMMING LED

STATUS LED
Green - stylus seated
Red - stylus deflected

These shanks are not suitable for the MP18-S probes which use a dedicated shank incorporating a shank switch.

B

Ø14,25
(Ø0.56)

7,13

(0.28)

MP18-S

dimensions mm (in)

Taper

shank

A

4 (0.16)

13

TAPER SHANK

Complete probe/shank units are
supplied by Renishaw. These

shanks incorporate a switch.
The shank is attached to the

RMP3 using a shank adaptor.
Part No. A-2249-0134.

The method of attachment is
shown on page 15.

Shank switch

90°

85

(3.35)

Stylus
length

Drive slot

Thread for pull stud

To save battery life, the shank switch
must NOT be depressed, during
the time the probe is held in the tool
store.
It may be nesessary to provide a

95

(3.74)

29

(1.14)

Ø48 (Ø1.89)

22

(0.87)

17.5° 17.5°

RMP3

Ø62

(Ø2.24)

21,5

(0.85)

storage location with a clearance
around the switch.

Ø6 (Ø0.24)

Orders placed for MP18-S probes require a separate quotation and price.

Please contact Renishaw Custom Products Department.

SHANKS AVAILABLE

Shank type

BT 40 35 (1.38) 14 (0.55)
BT 50 50 (1.97) 24 (0.94)
ANSI B5.50 - 1985 (CAT) 40 35 (1.38) 14 (0.55)
ANSI B5.50 -1985 (CAT) 50 65 (2.56) 36,8 (1.45)
DIN 69871 40 50,6 (1.99) 14 (0.55)
DIN 69871 50 50,6 (1.99) 36,8 (1.45)

❃ ANSI (CAT) MODIFIED 40 35 (1.38) 14 (0.55)
❃ ANSI (CAT) MODIFIED 50 65 (2.56) 36,8 (1.45)

ISO

taper

Dimensions

A B

❃

These shank specifications are for certain Cincinatti Milacron machines.
Generally to ANSI B5.50 - 1985 (CAT), but with a metric thread for the pull stud.

14

MP18 PROBE/ADAPTOR PLATE/SHANK ASSEMBLY

STYLUS ON-CENTRE ADJUSTMENT

Adaptor plate A-2107-0031

PROBE/SHANK MOUNTING

1. Remove battery covers and battery

- see opposite.

2. Tighten probe/adaptor plate screws A

to 5.1 Nm (3.76 lbf.ft) using special
4mm AF hexagon key (supplied in tool kit).

3. Fully slacken four screws B.

4. Grease two screws C, and fit into shank.

5. Fit probe onto the shank, and visually
position the probe centrally relative to
the shank. Partially tighten screws C
to 2 - 3 Nm (1.47 - 2.2 lbf.ft).

6. Mount the probe/shank assembly into
machine spindle.

Special short arm

hexagon key 4mm AF

PROBE

A

B

Adaptor plate

C

STYLUS ON-CENTRE ADJUSTMENT

7. Each of the four screws B will move the

probe relative to the shank, in the X or Y
direction as pressure is applied.
Tighten individually, backing off after
each movement.

8. When the stylus tip run-out is less than

20µm, fully tighten screws C to 6 - 8 Nm
(4.4 - 5.9 lbf.ft).

9. For final centering use screws B to move

the probe, progressively slackening on
one side and tightening the opposite screw,
as the final setting is approached, using
two hexagon keys.
Tip run out of 5µm (0.0002 in) should
be achievable.

10. It is important that all four screws B are

tight or tightened to 1,5 - 3,5 Nm
(1.1 - 2.6 lbf.ft) once the final setting
has been achieved.

11. When on-centre adjustment is completed,
replace battery and covers - see opposite.

SHANK

4mm AF

SHANK

2,5mm AF

C

B

Adaptor plate

PROBE

Note :

1. DURING ADJUSTMENT CARE SHOULD BE TAKEN NOT

TO ROTATE THE PROBE RELATIVE TO THE SHANK.

2. IF A PROBE/SHANK UNIT IS ACCIDENTALLY DROPPED,

IT SHOULD BE CHECKED FOR ON-CENTRE POSITION.

3. DO NOT HIT OR TAP THE PROBE TO ACHIEVE

ON-CENTRE ADJUSTMENT.

MP18-S STYLUS ON-CENTRE ADJUSTMENT

Complete units are supplied on application to

Renishawn Custom Products Department

2mm AF

15

2.5mm AF

STYLUS ON-CENTRE ADJUSTMENT

1. If adjustment is required, remove
the battery covers and battery.

2. Slacken the two probe/shank
clamping screws half of one turn,
so that the disc washers maintain
a slight clamping grip.

3. There are four adjusting screws A.
Each will move the probe relative
to the shank, in the X or Y direction
as pressure is applied.
Tighten individually. Back off after
each movement.

4. When stylus target position is obtained,
tighten all screws - see page 30.

5. Replace battery and battery covers.

A

Four on-centre

adjusting screws

3mm AF
Two clamping
screws

MP18 and MP18-S STYLUS ON-CENTRE ADJUSTMENT

Stylus alignment with the spindle
centre line need only be approximate,
except in the following circumstances.

1. When probe vector software is used.

2. When the machine control software
cannot compensate for an offset stylus.

3. The stylus must be parallel to
the spindle axis to prevent stylus stem
contact against the side of deep holes.

How to check stylus position

Mount the probe in the machine spindle
and use one of the following procedures.

1. Rotate stylus close to a reference
surface, check if the gap is constant.

2. Rotate stylus against low force dial test
indicator, which does not unseat the probe.

3. Use method advised by machine tool
supplier.

16

RADIO MODULE MACHINE (RMM2)

Cable side exit and rear exit versions are available

phones or another radio probe operating on the
same channel.

An audio monitoring facility is provided to
diagnose causes of interference - see page 18.

RMM2 MOUNTING

Select a flat, metallic surface, ideally away from
corners and bulkheads.

The base of each RMM2 incorporates five
permanent magnets to allow temporary
attachment to a metal surface.

RMM2 RADIO ANTENNA

The RMM2 receives radio signals from the probe,
and passes the signals via a 10m (32ft) coaxial
cable to the MI16 interface.

Two RMM2 units are supplied with each system.
The system can operate with a single RMM,
but there may be areas where the radio signal is
weak. This is a characteristic of all radio systems.
The second RMM2 is positioned to provide good
reception over the probes full working area.

SIGNAL TRANSMISSION ENVELOPE

Radio signals can be transmitted and recieved up
to distance of 15 metres (49ft), in any direction.
Distances greater than this may be achievable
under certain circumstances.

Line of sight between the RMP3 and the RMM2
is not required and the signal can still be received
with the RMP3 fully enclosed in a bore.

Alternatively three clearance holes are provided
within the base for M4 fixing screws -10mm long
for permanent installation.

RMM2 POSITIONING

Each RMM2 must be installed with care in order
to receive as strong and reliable a signal as
possible from the probe/RMP3 transmission
module.

To guarantee reliability, the MI16 Interface has
two independent reception circuits, each support
one antenna (RMM2). Radio waves are a
coherent form of energy, and reflected signals
may add or subtract to the performance,
resulting in no signal in some positions. To avoid
this, a second RMM2 is recommended.

Commence by connecting a single RMM2 to the
MI16 interface. Position the RMM2 as close as
possible to the working envelope. Activate the
probe/RMP3.

Systems operating on the same channel should
be seperated by a distance of 100m (328ft), to
avoid interference with each other.

OPERATING ENVIRONMENT

It is important that the environment is free from
interference at the chosen transmission frequency.
Devices that may make operation difficult include
arc welders, pagers, remote control keys, mobile

The strength of the radio transmission signal is
observed using the MI16 interface front panel
Rx signal display - see page 18 item 6. Move the
probe around the working envelope and observe
the RX signal display. Identify positions in the
working envelope where the signal is weak or
disappears. A satisfactory signal is indicated by
the RX display signal bars remaining green.

SIDE EXIT CABLE

17

60mm (2.36in)

40mm

(1.57in)

Ø82mm

(3.29in)

REAR EXIT CABLE

68mm

(2.677in)

PCD

11,5mm
(0.45in)

120°

34mm
(1.39in)

16.5mm (0.65in)

30°

Ø82mm

(3.29in)

dimensions mm (in)

270mm (10.63in)

60mm (2.36in)

40mm

(1.57in)

68mm

(2.677in)

PCD

120°

30°

120°

Conduit

Cable

Top view

The cable must be protected

from the machine environment

by suitable conduit.
(Thomas and Betts

SHURESEAL 1/4in,

Part No TBEF 0250-50,

or equivalent).

120°

Cable

120°

120°

Rear view

Disconnect the RMM2 antenna and connect the
second RMM2 cable to either of the MI16
antenna inputs.

Position the second RMM2 such that the regions
of weak signal do not coincide with those
observed with the first RMM2. A good solution is
to mount antennae at 90° to each other.

270mm (10.63in)

Once a suitable position has been established,
reconnect the first RMM2 and the system is
ready for use.

18

MI16 INTERFACE

dimensions mm (in)

The MI16 interface converts probe signals into
an acceptable form for the CNC machine control.

240mm (9.45in)

55mm

(2.16in)

Self adhesive foot

Ø20mm (0.79in)

1 2 3 4 5 6 7 8 9 10 11 12

MI16 front panel LED’s display the switch
on/off mode, RMP3 program status, signal
strength, and probe status.
It also provides buttons to select the signal
transmission channel and audio volume.

1 START MODE

The selected start mode is indicated
by a lit LED.

2 CHANNEL

The display shows the selected
transmission channel.

3 PROGRAM CONFIRM

The LED lights to indicate the
successful programming of the RMP3
transmission channel and start mode.

4 PROGRAM BUTTONS

Buttons used to select the required
transmission channel and start
mode for programming of the RMP3.

5 LOW Rx SIGNAL LED

Lit when the received signal is too low
(3 or less bargraph segments lit).

6 Rx SIGNAL

Indicates the received signal level
(10 segments green for a strong
signal, 0 for probe switched off).

235mm (9.25in)

5mm

(0.2in)

7 PROBE STATUS LED

Lit when the probe is seated.
Off when triggered.

8 ERROR LED

Lit when an error occurs in the
transmission of the probe signal,
or when the probe is off.

9 LOW BATTERY LED

Lit when the battery voltage falls
below 7V. Replace the batteries as
soon as possible after this LED lights up.

10 AUDIO VOLUME CONTROL

Adjusts the volume of the audible
transmission monitor. Used to diagnose
interference sources.

11 TRIGGER VOLUME CONTROL

Adjusts the volume of the audible
indicator, heard on probe trigger and
to confirm programming operations.

12 PROGRAMMING WINDOW

The LED’s used for RMP3 programming
are mounted behind this window.
To program the RMP3 its programming
LED’s must be aligned with the MI16
programming window.

MI16 REAR PANEL CONNECTIONS

Connections to the CNC machine control, the power supply and RMM2
antennae are located on the MI16 rear panel.
A 16 pin connector is supplied, the pin functions are described below :

19

19

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

1

2

GROUND

+24 VOLTS DC (± 10%)

Capable of supplying 500mA

3

4

0 VOLTS

OM SCREEN

Connection for OM16 cable screen

5

6

7

8

9

+ ve OM16 CONNECTION

– ve OM16 CONNECTION

+ ve MACHINE START

- ve MACHINE START

ERROR SSR

17 18

12 LOW BATTERY SSR

13 PROBE STATUS SSR

(NORMALLY CLOSED)

14 PROBE STATUS SSR

(NORMALLY CLOSED)

15 PROBE STATUS SSR

(NORMALLY OPEN)

16 PROBE STATUS SSR

(NORMALLY OPEN)

17 BNC CONNECTOR

FOR FIRST ANTENNA

18 BNC CONNECTOR

FOR SECOND ANTENNA

10

11

ERROR SSR

LOW BATTERY SSR

INTERFACE GROUNDING

The MI16 is equipped with an internal power
transformer which ensures that the casing is
isolated from the external power source.
To maintain the isolation the positive (+) and
negative (-) wires must be connected without
contacting the chassis. Use of a shielded cable
is preferred.

19 CHASSIS GROUND

The cable screen must be connected to ground
on the machine controller and to the primary
ground connection on the MI16 Interface connector
(item 1).

The MI16 is equipped with a chassis ground
tab (item 19) which should be used to connect the
MI16 enclosure to the nearest machine ground.

20

MI16 AUDIO DIAGNOSTICS

An audio facility, with adjustable volume, is
provided on the MI16 Interface to permit the
identification of interference sources.

In the event of functional disturbances that
suggest radio interference, the audio facility
should be used:

Set the audio volume to maximum, using the
buttons on the front panel of the MI16.

When the RMP3 is active a continuous tone
should be audible, the tone changes when
the probe is triggered.

MI16 OUTPUT WAVEFORMS

MI 16 OUTPUTS

Solid

State Relay

PROBE STATUS

Open

Relay

Probe
switch

on

➤

Seated

PROBE

Triggered Seated

Probe

trigger

➤

With the RMP3 inactive no tone should be
audible; only background noise.

In either condition the sound should be
observed and any unusual sounds noted.

The frequency of occurrence may then be
correlated to adjacent machinery
(arc welders, paging devices) to identify
the interference source.

If the source of interference cannot be
eliminated, then a change in transmission
channel is recommended.

Error

Probe
reseat

➤

low

received

signal (RX)

➤

Error
clear

➤

Low

battery

➤

Probe
switch

off

➤

Normally Open

PROBE STATUS

Normally Closed

ERROR

Normally Closed

LOW BATTERY

Normally

Open

Closed

Open

Closed

Open

Closed

Open

Closed

MI16 PANEL MOUNTING KIT

optional

The MI16 interface panel mounting kit (Renishaw Part No. A-2056-0005) allows the interface to be

mounted in flat panel when a section of the panel is cut out. All MI 16 front features are neatly displayed.

PSU3 POWER SUPPLY UNIT

optional

21

dimensions mm (in)

183mm (7.2in)

44mm (1.73in)

Self adhesive foot

Ø12,7mm (0.5in)

140mm (5.5in)

Green LED

3.5mm

(0.14in)

The PSU3 supplies power for the MI16 interface when a
24V ±2V dc power supply is not available from the CNC
machine.

The PSU3 is designed for use world-wide.

INPUT

Power to the PSU3 is provided via an IEC mains connector
85 - 264V ac.
47 - 66Hz.
25W maximum.

OUTPUT

24V ±2V dc
0,5 A maximum
The PSU3 is over voltage and over current protected.

22

OM16 OPTICAL MODULE

optional

Distance L

metres (feet)

1 (3.28) ±20°
2 (6.56) ±15°
3 (9.84) ±10°

±A°

OM16

angle A

Orange LED

L

OPERATING ENVELOPE

The OM16 window and RMP2 LED’s should be wiped clean periodically to remove coolant residues.
Operation outside the temperatures specified for operational use (5°C to 50°C / 41°F to 158°F )
may result in some reduction in transmission range.
The maximum recommended distance between the OM16 and RMP3 is 3 metres.

OM16 FUNCTION

An M code from the CNC machine control
causes the OM16 to send an optical switch on
or switch off signal to the probe/RMP3.

The appropriate activation mode is selected
and programmed from the MI16 Interface.

The ring of LED’s around the probe body receive
OM16 optical signals in any probe orientation,
provided optical transmitter and receiver LED’s
are mutually in each other view.

OM16 MOUNTING

The module may be mounted directly to the
machine guarding, using the M32 locking nuts
provided on the OM16 body.

Alternatively a mounting bracket is supplied with
the OM16 module. The bracket securing screws
can be loosened to allow the OM16 LED’s to be
directed towards the probe LED’s.

Screws are then re-tightened.
The mounting bracket accepts an M10 size bolt

for attachment to guarding or bulkheads.

OM16 WINDOW

The chosen position for the OM16 should be
selected to avoid direct impact of machining
swarf on the OM16 window. Although the
window is 4mm thick toughened glass, long
term erosion will eventually reduce optical
signal strength.

OM16 LED

An orange LED is lit when a signal is sent.
To assist monitoring system status, the orange
LED must be visible to the operator during use.

OM16 OPTICAL MODULE

dimensions mm (in)

23

M32x1.5

38.3mm (1.51in)

WIRING CONNECTIONS

The OM16 is connected to the MI16 Interface with 25 metres
of cable. The cable uses four conductors and the screen.
These should be connected as below:

Ø29mm

(1.14in)

112.5mm (4.43in)

137.5mm (5.41in)

60mm (2.36in)

86mm (3.39in)

51mm (2.01in)

32.5mm (1.28in)

17.5mm (0.69in)

10mm (0.39in)

25mm

(0.98in)

Ø10.5mm

(0.04in)

50mm (1.97in)

Cable screen
Connect to ground (MI16 pin 4 - see page 19).

Red and Yellow

Connect both to the +ve OM16 pin on the MI16 Interface
(MI16 pin 5 - see page 19).

Blue and Green

Connect both to the -ve OM16 pin on the MI16 Interface
(MI16 pin 6 - see page 19).

SEALING

The OM16 is sealed to IP68.
A gland suitable for sealing to flexible conduit is supplied as stan-

dard.
The OM16 cable should be protected by flexible conduit.

The recommended type is Thomas and Betts SHURESEAL 1/4in,
Part No. TBEF 0250-50, or equivalent.

24

IMPORTANT

Insert battery as shown

on label

Battery

cover

(2)

BATTERY

Cover seal

(5)

Battery

cover

2,5mm AF

(1)

Screw

Remove cover to replace exhausted battery

1. Slacken screws (1) and remove battery
cover (2).

2. Remove battery (3).
Do not remove second cover,
to change battery.

Probe/shank mounting and stylus on-centre
adjustment - remove second cover

3. Remove screw (4) and battery cover (5).

To replace battery covers

4. Check that battery cover seals are seated,
and lubricate seals lightly with a mineral
oil or grease.

5. Replace cover (5) - with Renishaw logo.

6. Replace battery with polarity as shown
on label,

7. Replace battery cover (1)
(with battery symbol).
Tighten battery cover screws to
1,1 Nm (0.8 lbf.ft).

Probe battery

Power for the probe is supplied

TYPICAL BATTERY LIFE EXPECTANCY

by one PP3 9V alkaline or lithium
battery. It is essential to select the

type listed in chart, or equivalent.
Low battery warning

When the MI 16 Low Battery

Alkaline PP3

MN1604 (Duracell)

Lithium PP3

LED lights up, battery voltage

BATTERY

TYPE

U9VL-FP

(4)

Screw

DO NOT leave exhausted

battery in probe

Dispose of exhausted

(3)

Type PP3 9V

battery

batteries in accordance

with local regulations

is low and the end of
useable battery life is approaching. (The Low
Battery LED will only light up during the probe
operating mode).
The machine control may also be programmed
to flag up a Low Battery Alarm.

Typical battery reserve life

Using an alkaline battery at 5% usage, the probe
will typically continue to operate for 8 hours, after
the MI 16 Low Battery LED lights up.

Dead battery indication

When the battery voltage drops below the
threshold where performance can be
guaranteed, a probe output relay will also
be forced into its open state, causing the
machine to stop, until a new battery is
inserted. The probe will revert to the
stand-by mode after changing the battery.

Stand-by

365 days

730 days

5% usage

(72 min/day)

31 days

64 days

Continuous

38 hours

80 hours

MODES OF OPERATION

25

The RMP3 transmission module can be
switched on and off by a number of different
methods:

All options are selectable on the MI16 interface,
and programmed into the RMP3 from the MI16

- see page 26.

MP18 PROBE SWITCH ON / SWITCH OFF OPTIONS
Note for M code probe activation, an OM16 is required.

TIME OUT PERIOD

This is selectable to 30 sec (± 1sec) or 180 sec
(± 1sec). With prototype RMP3’s or if a Mk1 MI16
is used for programming, then the time out will be
180 sec (± 1sec)

MODE

M code
Optical on
Optical off

SWITCH ON METHOD

A machine M code causes the OM16
to send an optical signal to the RMP3,
which switches it on.

When a particular option has been selected,
all other options are disabled.

A standard RMP3 allows any of the options to be
selected except the shank switch method, which
requires a dedicated shank.

DEBOUNCE PERIOD

After the probe is switched on it cannot be
switched off again until a period of 2 seconds
has elapsed. Similarly, after switch off, the
probe cannot be switched on again until
2 seconds has elapsed.

SWITCH OFF METHOD

A machine M code causes the OM16
to send an optical signal to the
RMP3, which switches it off.

M code
Optical on

Time out off

Spin on

Spin off

(centrifugal switch)

Spin on

Time out off

MP18-S PROBE WITH SHANK SWITCH

The MP18-S, is supplied with a modified shank
incorporating a shank switch.

Switch on occurs when the shank is inserted into
the machine spindle causing the switch to
depress and switch the probe on.

The probe switches off when the probe is

The machine M code causes the
OM16 to send an optical signal to
the RMP3, which switches it on.

The machine spindle is rotated at
500 rev/min (± 50 rev/min), for a
minimum of 1 sec to ensure reliable
switch on.

The machine spindle is rotated at
500 rev/min (± 50 rev/min), for a
minimum of 1 sec to ensure reliable
switch on.

The RMP3 will switch off once the
timeout period elapses since the last
probe trigger, or since the RMP3 was
last switched on (whichever was
later).

The machine spindle is rotated at 500
rev/min (± 50 rev/min), for a minimum
of 1 sec to ensure reliable switch off.

The RMP3 will switch off once the
timeout period elapses since the last
probe trigger, or since the RMP3 was
last switched on (whichever was
later).

removed from the machine spindle.
The shank switch option is selected from the

MI16 machine interface - see page 26.

TAKE CARE

Ensure that the shank switch is not depressed
when the probe is stored in the machine tool
carousel.

26

MODE AND CHANNEL SELECTION

The MI16 Interface and probe/RMP3
transmission module are factory set to
Channel 1. The following procedure
must be followed to set or change the
transmission channel.

The programming of the transmission
channel and the RMP3 activation mode

PROGRAMMING THE MI16 INTERFACE

is carried out on the MI16 and transferred
to the RMP3 by a short range optical link.

To program the RMP3 it is necessary to bring
the RMP3 close to the front panel of the MI16
Interface. This should be catered for when
selecting the MI16 Interface mounting and
positioning.

CONFIRM LED

ACTIVATION

MODES

1. The programming mode is entered by
pressing simultaneously the programming
‘+’ and ‘–’ buttons on the front of the MI16
Interface, for approximately 5 seconds.
The Channel Number and Activation Mode
displays will start to flash, to indicate that the
Interface is ready to be programmed.

2. Select the required channel by using the
‘+’ button to increase the channel number,
and the ‘-’ button to reduce the channel
number. 69 channels are available.

3. To change the activation method,
simultaneously press both the ‘+’ and ‘-’
buttons. Each simultaneous press will cause
the activation method to change. The MI16
can be cycled through all the available
activation methods.

CHANNEL NUMBER

DISPLAY

–

+

4. When a Mk2 MI16 is used, the mode selection
will select 30 sec (± 1sec) time out when the
time out LED is green, or 180 sec (± 1sec)
when the time out LED is red.

5. If neither key is pressed for 5 seconds the
channel number stops flashing, followed by a
double audible beep, and the ‘CONFIRM’ LED
lighting on the MI16 Interface front panel for a
period of 10 seconds. This indicates that
programming of the interface is complete.

If only a change in channel is required, with
no change in activation method, action 5.
may be taken after action 2.

RADIO FREQUENCY and CHANNEL SEPARATION

The frequency range is divided into separate channels, each channel
having a typical bandwidth of 25kHz, to permit many systems to operate
in close proximity without the danger of interference.
The operating channel is programmed by push buttons on the MI16.

27

ChannelNoFrequency

MHz

1 433.075

2 433.100

3 433.125

4 433.150

5 433.175

6 433.200

7 433.225

8 433.250

9 433.275

10 433.300

11 433.325

12 433.350

Channel

No

24 433.650

25 433.675

26 433.700

27 433.725

28 433.750

29 433.775

30 433.800

31 433.825

32 433.850

33 433.875

34 433.900

35 433.925

Frequency

MHz

Channel

No

47 434.225

48 434.250

49 434.275

50 434.300

51 434.325

52 434.350

53 434.375

54 434.400

55 434.425

56 434.450

57 434.475

58 434.500

Frequency

MHz

13 433.375

14 433.400

15 433.425

16 433.450

17 433.475

18 433.500

19 433.525

20 433.550

21 433.575

22 433.600

23 433.625

36 433.950

37 433.975

38 434.000

39 434.025

40 434.050

41 434.075

42 434.100

43 434.125

44 434.150

45 434.175

46 434.200

59 434.525

60 434.550

61 434.575

62 434.600

63 434.625

64 434.650

65 434.675

66 434.700

67 434.725

68 434.750

69 434.775

28

PROGRAMMING THE RMP3 TRANSMISSION MODULE

1. To enter the RMP3 programming mode,
remove the probe battery cover and
battery for a period of 10 seconds minimum.

2. Replace the battery cover and battery.
A double green flash from the RMP3
STATUS LED indicates the RMP3 is in
programming mode. The mode is active
for one minute, after which the RMP3
returns to standby status.

3. To program the RMP3 (or check its
current programming configuration) align
the RMP3 programming LED with those

LED Colour - black

RMP3 PROGRAMMING LED

Colour - water clear

on the MI16 front panel. The MI16
programming LED’s are shown below.

6. If the RMP3 is now moved away from the
MI16 Interface no programming will take
place. (Useful if the user wishes to verify
the current configuration of the RMP3).

7. If the RMP3 is held in position (see action 4)
a continuous audible beep will be emitted
for 5 seconds, to warn that programming is
about to occur.
If the RMP3 is moved out of range during
this period no programming occurs.

8. At the end of the above period programming
occurs.

9. Successful programming is indicated by a
double audible beep and the ‘CONFIRM’
LED lighting on the MI16 Interface front
panel for 5 seconds.
The RMP3 remains active until the one
minute allowed for programming has
elapsed. At this point the system switches
to standby mode and is ready for use.

Programming LED’s.

MI16 INTERFACE

4. The MI16 and the RMP3 programming
LED’s must be aligned and held within
100mm (3.93in) of each other for the
optical link to be established.

5. Once the optical link has been established
the interface emits an audible beep every
½ second for 5 seconds and the front panel
displays the current RMP3 configuration.

MI16 INTERFACE

10. Incorrect programming is indicated by
continuous audible beeps, flashing of
the channel number display and the
‘CONFIRM’ LED not lighting.

In this event the programming procedure
should be repeated.

MAINTENANCE

STYLUS SPRING PRESSURE ADJUSTMENT

Gauging force

Locknut 7mm AF
Stop
Adjusting screw

29

Stylus

2.5mm AF

Spring pressure within the probe causes the stylus
to sit in one unique position, and return to this position
following each stylus deflection.
Stylus pressure is set by Renishaw.
The user should only adjust spring pressure in special
circumstances e.g. excessive machine vibration or
insufficient pressure to support the stylus weight.

To adjust spring pressure, remove the probe head to
gain access to the spring pressure adjusting screw.
Slacken the locknut, and turn the adjusting screw
anticlockwise to reduce pressure (more sensitive)
or clockwise to increase pressure (less sensitive).

A stop prevents damage, which could be caused
by overtightening the adjusting screw.

Finally tighten the locknut to 1Nm (0.74lbf.ft) and
replace the probe head.

Align contact pins before

connecting probe head.

2.0mm AF

DO NOT rotate probe head

when located in radio module

ENSURE THAT THE OMP IS KEPT
CLEAN. DO NOT ALLOW COOLANT
OR PARTICLES TO ENTER THE
PROBE.

STYLUS SPRING PRESSURE
ADJUSTMENT AND USE OF STYLI
OTHER THAN CALIBRATION
STYLUS TYPE, MAY CAUSE
REPEATABILITY TO DIFFER FROM
THE TEST CERTIFICATE RESULTS.

30

DIAPHRAGM INSPECTION and REPLACEMENT

PROBE DIAPHRAGMS

The probe mechanism is protected from coolant
and debris by two diaphragms, these provide
adequate protection under normal working
conditions.
The user should periodically check the outer
diaphragm, for signs of damage and coolant
leakage. If this is evident replace the outer
diaphragm.

The outer diaphragm is resistant to coolant
and oils. However if the outer diaphragm is
damaged, the inner diaphragm could become
weakened with prolonged immersion in certain
coolants and oils.

The user must not remove the inner
diaphragm. If damaged, return the probe
to your supplier for repair.

OUTER DIAPHRAGM INSPECTION

1. Remove the stylus

2. Unscrew the front cover.

3. Inspect outer diaphragm for damage.

4. To remove outer diaphragm, grip near the
middle and pull upwards.

STYLUS HOLDER OUTER DIAPHRAGM

INNER DIAPHRAGM

STYLUS

TOOL

2

11

3

STYLUS 1 12

11

Lightly

grease

here

INNER DIAPHRAGM INSPECTION

5. Inspect inner diaphragm for damage.

If damaged return the probe to your
supplier for repair.

DO NOT REMOVE INNER DIAPHRAGM

OUTER DIAPHRAGM REPLACEMENT

6. Screw tool fully into stylus holder.

7. Fit new diaphragm.

8. The diaphragm must locate centrally in
the stylus holder groove.

9. Press diaphragm to expel trapped air.

10. Remove tool.

11. Lightly smear medium grease on front
cover lower surface. Then refit cover
and tighten.

12. Refit stylus

4

7 9

6 10

5

WARNING:

NEVER ATTEMPT TO REMOVE

DIAPHRAGM WITH METAL OBJECTS

8

SCREW TORQUE VALUES

2,5mm AF

6 - 8 Nm

(4.4 - 5.9 lbf.ft)

Special 4mm AF

5,1 Nm

(3.76 lbf.ft)

31

4mm AF

6 - 8 Nm

(4.4 - 5.9 lbf.ft)

MP18 PROBE

Weak link

optional for

steel shaft

styli only

Probe head

2 Nm

(1.7 lbf.ft)

2mm AF

5mm AF

2 Nm

(1.7 lbf.ft)

Align RMP3 and

probe head

electrical contacts

7mm AF

1 Nm

(0.74 lbf.ft)

RMP3

Shank

Adjusting plate

2,5mm AF

1,1 Nm

(0.8 lbf.ft)

2,5mm AF

1,1 Nm

(0.8 lbf.ft)

2mm AF

1,1 - 3,5 Nm

(1.1 - 2.6 lbf.ft)

MP18-S PROBE

3mm AF

2 Nm

(2.21 lbf.ft)

2,5mm AF

1,1 Nm

(0.8 lbf.ft)

2,5mm AF

1,1 Nm

(0.8 lbf.ft)

32

PARTS LIST - Please quote the Part No. when ordering equipment

Type Part No. Description

SYSTEM KITS

MP18 KIT ✲ MP18 probe, MI16, RMM2 x two,

shank adaptor, tool kit.

MP18 PROBE ✲ MP18 probe with battery, adaptor plate and

tool kit.

MP18-S PROBE ✲ MP18-S probe with battery, adaptor plate

and tool kit.

MP18-S KIT ✲ MP18-S probe, MI16, RMM2 x two,
(ANSI -1985-CAT-SIZE 40) shank adaptor, shank, tool kit.

MP18-S KIT ✲ MP18-S probe, MI16, RMM2 x two,
(ANSI -1985-CAT-SIZE 45) shank adaptor, shank, tool kit.

MP18-S KIT ✲ MP18-S probe, MI16, RMM2 x two,
(ANSI -1985-CAT-SIZE 50) shank adaptor, shank, tool kit.

MP18-S KIT ✲ MP18-S probe, MI16, RMM2 x two,
(ANSI -1978-SIZE 40) shank adaptor, shank, tool kit.

MP18-S KIT ✲ MP18-S probe, MI16, RMM2 x two,
(ANSI -1978-SIZE 45) shank adaptor,shank, tool kit.

MP18-S KIT ✲ MP18-S probe, MI16, RMM2 x two,
(ANSI -1978-SIZE 50) shank adaptor, shank, tool kit.

MP18-S KIT ✲ MP18-S probe, MI16, RMM2 x two,
(DIN 69871-SIZE 40) shank adaptor, shank, tool kit.

MP18-S KIT ✲ MP18-S probe, MI16, RMM2 x two,
(DIN 69871-SIZE 45) shank adaptor, shank, tool kit.

MP18-S KIT ✲ MP18-S probe, MI16, RMM2 x two,
(DIN 69871-SIZE 50) shank adaptor, shank, tool kit.

MP18-S KIT ✲ MP18-S probe, MI16, 2 off RMM2’s,
(BT-1982-SIZE 40) shank adaptor, shank, tool kit.

MP18-S KIT ✲ MP18-S probe, MI16, RMM2 x two,
(BT-1982-SIZE 50) shank adaptor, shank, tool kit.

✲ Please contact Renishaw

All MP18-S versions are custom products, requiring a separate quotation and price.

USER REGION USA

PARTS LIST - Please quote the Part No. when ordering equipment

Type Part No. Description

SYSTEM
COMPONENTS

RMP3 433 FCC A-2249-0230 RMP3 transmission module with tool kit.

RMP3 S 433 FCC A-2249-0231 RMP3 transmission module and tool kit.

shank switch version (without shank and adaptor plate)

Shank adaptor A-2107-0031 Shank adaptor plate for attachment to MP18 style shanks.

Shank adaptor A-2249-0134 Shank adaptor plate kit for shank switch for attachment

to MP18-S style shanks.

RMM2 side exit A-2137-0170 RMM2 antenna - side exit cable.

33

RMM2 rear exit A-2137-0470 RMM2 antenna - rear exit cable.

MI16 A-2137-0160 MI16 interface with connector.

OM16 kit A-2137-0401 OM16 optical module and mounting bracket.

Battery P-BT03-0001 Duracell MN1604, PP3, 9V.

Stylus A-5000-3709 PS3-1C stylus, Ø6 ball x 50mm long with ceramic stem.

Weak link kit A-2085-0068 Kit comprising : stylus weak link stem x two, spanner

and instruction sheet.

Weak link stem M-2085-0069 Stylus weak link stem for use with steel shaft styli.

Spanner P-TL09-0003 Spanner for weak link stem.

Styli — See Data Sheet H-1000-3200.

PSU3 power supply — See Data Sheet H-2000-2200

Software — See Data Sheet H-2000-2289.

USER REGION USA

34

ADDENDUM 1

Radio system component compatibility

Complete MP14 and MP16 probe systems may be exchanged with
complete MP18 and MP18-S probe systems.

Component compatibility
NOT ALL MP18 components are compatible with components used

with the earlier MP14 radio transmission system.

Components with identical model name/number are interchangeable
between systems.

Earlier MP14 systems incorporating an RMP, RMM and the MI14 interface
DO NOT function with current systems using the RMP2
(used with MP16), RMP3 (used with MP18), RMM2, MI16 interface
and the OM16 optical module.

Probe/RMP2/RMP3

The RMP2 and RMP3 will communicate with the RMM and RMM2,
provided they are set to operate on the same channel.

The MP18 probe is smaller and lighter than the MP14 and MP16 probes.

RMM and RMM2 antenna

Both antenna use the same base. The RMM2 antenna is shorter than
the RMM antenna.

Interface unit

The MI14 interface has been replaced by the MI16 interface, both
units are the same size. All electrical outputs and inputs to the MI16 Interface
remain unchanged from the MI14 Interface.

(Note that a 16 pin plug is required for connection to the MI16 Interface rather
than the 14 pin connector used on the MI14 Interface. The two extra contacts
allow connection to the OM16 Optical Module).

ADDENDUM 2

Shank manufacturing details for MP18

Dimensions

A

B

6 (0.24)

❃

4,5 (0.18)

❃

4,3 (0.17)

Ø20,10 (0.791)

❃

Ø20,02 (0.788)

(32)

0.8

Two holes

M8 x 1,25 Thro.

equi-spaced

into bore

❃

For reference only 27,5 (1.08)

Ø25,0 (0.984)

❃

Ø24,8 (0.976)

Not convex

0,05

C

0,02

0.8 (32)

Shank manufacturing details to prepare shank for MP18 shank adaptor

(shank without shank switch)

A and B

are shown on

page 12

GAUGE LINE

C

❃

25,5 (1.00)

35

36

ADDENDUM 3

SELECTION OF MI16 SENSITIVITY

The MI16 MK3 version has an integral switch which allows the selection of the radio
reception sensitivity level.

The switch is located on the rear panel.

Switch : 3 positions

The sensitivity can be selected from three levels:

HIGH : The reception sensitivity is strong.

ð The reception distance is longer.
ð The parasitic sensitivity is increased.

LOW : The reception sensitivity is lower.

ð The reception distance is smaller.
ð The parasitic sensitivity is diminished.

MEDIUM : This position is a compromise between the two previous.

ADVICE ON SELECTION OF SWITCH POSITION

The choice of the switch position is dependent on the probe power version sold in the
different markets.
The following positions are recommended:

HIGH = USA Market

LOW = CEE Market

MEDIUM = JAPAN Market

Note : The choice of the MI16 interface sensitivity does not replace the procedures for
the antenna installation (see RMM2 ANTENNA-Operating envelope and installation).

www.renishaw.com

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© Renishaw 2000 Issue date 09.00

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