Renishaw LTO2 User manual

Installation and user’s guide
H-2000-5032-04-B
LTO2 probe system for lathes

© 2001 Renishaw. All rights reserved.
Renishaw® is a registered trademark of
Renishaw plc.
This document may not be copied or
reproduced in whole or in part, or transferred
to any other media or language, by any
means, without the prior written permission
of Renishaw.
The publication of material within this
document does not imply freedom from
the patent rights of Renishaw plc.
Renishaw part no: H-2000-5032-04-B
Issued: 11. 2001
Disclaimer
Considerable effort has been made to
ensure that the contents of this document
are free from inaccuracies and omissions.
However, Renishaw makes no warranties
with respect to the contents of this document
and specifically disclaims any implied warranties.
Renishaw reserves the right to
make changes to this document and to the
product described herein without obligation
to notify any person of such changes.
Trademarks
All brand names and product names used in
this document are trade names, service marks,
trademarks, or registered trademarks of their
respective owners.

Installation and user's guide
LP2-LTO2 inspection system

S2
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 harmful 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, 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.
GB
SAFETY
Information for the user
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.
In all applications involving the use of Machine
Tools or CMMs, eye protection is recommended.
Refer to the machine supplier's operating
instructions.
Information for the machine supplier
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 documentation, and to
ensure that adequate guards and safety
interlocks are provided.
Under certain circumstances the probe signal
may falsely indicate a probe seated condition.
Do not rely on probe signals to stop machine
movement.

S3
DK
SIKKERHED
Oplysninger til brugeren
Pas på uventede bevægelser. Brugeren bør 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.
I alle tilfælde, hvor der anvendes værktøjs- og
koordinatmålemaskiner, anbefales det at bære
øjenbeskyttelse.
Se maskinleverandørens brugervejledning.
Oplysninger til maskinleverandøren
Det er maskinleverandørens ansvar at sikre,
at brugeren er bekendt med eventuelle risici i
forbindelse med driften, herunder de risici,
som er nævnt i Renishaws produktdokumentation,
og at sikre, at der er tilstrækkelig afskærmning og
sikkerhedsblokeringer.
Under visse omstændigheder kan sondesignalet
ved en fejl angive, at sonden står stille. Stol ikke på,
at sondesignaler stopper maskinens bevægelse.
D
SICHERHEITSANWEISUNGEN
Informationen für den Benutzer
Auf unerwartete Bewegungen achten. Der Anwender
sill 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.
Bei der Bedienung von Werkzeugmaschinen oder
Koordinatenmessanlagen ist Augenschutz empfohlen.
Beziehen Sie sich auf die Wartungsanleitungen
des Lieferanten.
Informationen für den Maschinenlieferanten
Es obliegt dem Maschinenlieferanten, den Anwender
über alle Gefahren, die sich aus dem Betrieb der
Ausrüstung, einschließlich der, die in der Renishaw
Produktdokumentation erwähnt sind, zu unterrichten
und zu versichern, dass ausreichende
Sicherheitsvorrichtungen und Verriegelungen
eingebaut sind.
Unter gewissen Umständen könnte das
Messtastersignal falscherweise melden, daß der
Messtaster nicht ausgelenkt ist. Verlassen Sie
sich nicht allein auf Sondensignale, um sich über
Maschinenbewegungen zu informieren.

S4 F
SECURITE
Informations à l’attention de l’utilisateur
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.
Le port de lunettes de protection est recommandé
pour toute application sur machine-outil et MMC.
Consulter le mode d’emploi du fournisseur de la
machine.
Informations à l’attention du fournisseur de la
machine
Il incombe au fournisseur de la machine d’assurer
que l’utilisateur prenne connaissance des dangers
d'exploitation, y compris ceux décrits dans la
documentation du produit Renishaw, et d'assurer
que des protections et verrouillages de sûreté
adéquats soient prévus.
Dans certains cas, il est possible que le signal du
palpeur indique à tort l'état que le palpeur est au
repos. Ne pas se fier aux signaux du palpeur qui
ne garantissent pas toujours l’arrêt de la machine.
E
SEGURIDAD
Información para el usuario
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.
Se recomienda usar protección para los ojos
en todas las aplicaciones que implican el uso de
máquinas herramientas y máquinas de medición
de coordenadas.
Remitirse a las instrucciones de manejo del
proveedor de la máquina.
Información para el proveedor de la máquina
Corresponde al proveedor de la máquina asegurar
que el usuario esté consciente de cualquier peligro
que implica el manejo de la máquina, incluyendo los
que se mencionan en la documentación sobre los
productos Renishaw y le corresponde también
asegurarse de proporcionar dispositivos de protección
y dispositivos de bloqueo de seguridad adecuados.
Bajo determinadas circunstancias la señal de la
sonda puede indicar erroneamente que la sonda
está asentada. No fiarse de las señales de la sonda
para parar el movimiento de la máquina.

S5
FIN
TURVALLISUUTTA
Käyttäjälle tarkoitettuja tietoja
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.
Kaikkia työstökoneita ja koordinoituja mittausko
neita (CMM) käytettäessä suositamme
silmäsuojuksia.
Katso koneen toimittajalle tarkoitettuja
käyttöhjeita.
Tietoja koneen toimittajalle
Koneen toimittaja on velvollinen selittämään
käyttäjälle mahdolliset käyttöön liittyvät vaarat,
mukaan lukien Renishaw’n tuoteselosteessa
mainitut vaarat. Toimittajan tulee myös varmistaa,
että toimitus sisältää riittävän määrän suojia ja
lukkoja.
Tietyissä olosuhteissa anturimerkki saattaa
osoittaa virheellisesti, että kyseessä on anturiin
liittyvä ongelma. Älä luota anturimerkkeihin
koneen liikkeen pysäyttämiseksi.
GR

S6 NL
VEILIGHEID
Informatie voor de Gebruiker
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.
Het dragen van oogbescherming wordt tijdens
gebruik van Machinewerktuigen en CMM’s
aanbevolen.
De bedieningsinstructies van de machineleverancier
raadplegen.
Informatie voor de Machineleverancier
De leverancier van de machine is ervoor
verantwoordelijk dat de gebruiker op de hoogte
wordt gesteld van de risico’s die verbonden zijn
aan bediening, waaronder de risico’s die vermeld
worden in de produktendocumentatie van Renishaw.
De leverancier dient er tevens voor te zorgen dat de
gebruiker is voorzien van voldoende beveiligingen
en veiligheidsgrendelinrichtingen.
Onder bepaalde omstandigheden kan het
sondesignaal een onjuiste sondetoestand aangeven.
Vertrouw niet op de sondesignalen voor het stoppen
van de machinebeweging.
I
SICUREZZA
Informazioni per l’utente
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.
Si raccomanda di indossare occhiali di protezione
in applicazioni che comportano macchine utensili
e macchine per misurare a coordinate.
Consultare le istruzioni d’uso del fabbricante
della macchina.
Informazioni per il fabbricante della macchina
Il fornitore della macchina ha la responsabilità di
avvertire l'utente dei pericoli inerenti al
funzionamento della stessa, compresi quelli
riportati nelle istruzioni della Renishaw, e di
mettere a disposizione i ripari di sicurezza e gli
interruttori di esclusione.
È possibile, in certe situazioni, che la sonda
emetta erroneamente un segnale che la sonda
è in posizione. Evitare di fare affidamento sugli
impulsi trasmessi dalla sonda per arrestare la
macchina.

S7
P
SEGURANÇA
Informações para o Utilizador
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.
Em todas as aplicações que envolvam a utilização
de Máquinas-Ferramenta e CMMs, recomenda-se
usar protecção para os olhos.
Consultar as instruções de funcionamento do
fornecedor da máquina.
Informações para o Fornecedor da Máquina
É responsabilidade do fornecedor da máquina
assegurar que o utilizador é consciencializado
de quaisquer perigos envolvidos na operação,
incluindo os mencionados na documentação
do produto Renishaw e assegurar que são for
necidos resguardos e interbloqueios de
segurança adequados.
Em certas circunstâncias, o sinal da sonda pode
indicar falsamente uma condição de sonda
assentada. Não confiar em sinais da sonda
para parar o movimento da máquina.
SW
SÅKERHET
Information för användaren
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.
Ögonskydd rekommenderas för alla tillämpningar
som involverar bruket av maskinverktyg och CMM.
Se maskintillverkarens bruksanvisning.
Information för maskinleverantören
Maskinleverantören ansvarar för att användaren
informeras om de risker som drift innebär,
inklusive de som nämns i Renishaws
produktdokumentation, samt att tillräckligt goda
skydd och säkerhetsförreglingar tillhandahålls.
Under vissa omständigheter kan sondens signal
falskt ange att en sond är monterad. Lita ej på
sondsignaler för att stoppa maskinens rörelse.

Installation and users guide
WARRANTY
Equipment requiring attention under warranty
must be returned to your supplier. No claims will
be considered where Renishaw equipment has
been misused, or repairs or adjustments have
been attempted by unauthorised persons.
CHANGES TO EQUIPMENT
Renishaw reserves the right to change
specifications without notice.
CNC MACHINE
CNC machine tools must always be operated
by competent persons in accordance with
manufacturers instructions.
CARE OF THE PROBE/LTO2-OMP
Treat the equipment as a precision instrument.
IP RATING IPX8.
PATENT NOTICE
Features of Renishaw products are the subject
of one or more of the following patents and
patent applications:
EP 0283486
EP 0337669
JP 2,653,806
JP 21,794/1990
US 4899094
US 5,150,529

1-1
Contents
APPENDIX 1 Adaptors and extensions 1-15
APPENDIX 2 PSU3 power supply unit 1-16
APPENDIX 3 Optical module machine 1-16
APPENDIX 4 MI 12 interface … 1-17
APPENDIX 5 Optical machine interface 1-18
APPENDIX 6 LTO2-OMP switch setting 1-20
PARTS LIST … … … 1-21
INSTALLATION
Typical probe systems … … 1-2
Two OMM's and remote indicator … 1-3
Performance envelope … … 1-4
System performance … … 1-6
Battery power … … … 1-7
Stylus on-centre adjustment … 1-8
MA4 90° adaptor … … 1-9
OPERATION
System operation … … 1-10
SCREW TORQUE VALUES … 1-11
FAULT FINDING … … … 1-12

1-2
CNC
machine
control
TYPICAL PROBE SYSTEMS
Optional - PSU3
power supply unit
Stylus
Mounting
bracket
Workpiece
MI 5, MI 8 or MI 8-4
interface unit
MI 12 interface unit
or MI 12 board
LP2 or LP2H
inspection probe
Typical tool
setting probe
Socket for LP2
Lathe
turret
Cable
LTO2-OMP
O-M-I (one only)
+ CNC control
OMM (one or two)
+ MI 12
+ CNC control
Signals are transmitted
between the probe and the
machine control, via the
OMP and OMM + MI 12
or alternatively the OMP
and O-M-I.
Interface units convert
probe signals into an
acceptable form for the
CNC machine control.
Optional - PSU3
power supply unit
OMM - Optical module machine
OMP - Optical module probe
O-M-I - Optical machine interface
The LTO2-OMP mounts in a tool
position on the lathe turret.
A workpiece set-up or inspection
cycle may be introduced at any
stage of the machining process.

1-3
TWO OMM's and REMOTE INDICATOR
OMM 2
Stylus
LP2 or LP2H
inspection probe
Workpiece
Optional - PSU3
power supply unit
Cable
MI 12 interface unit
or MI 12 board
OMM 1
Lathe
turret
LTO2-OMP
REMOTE INDICATOR (OPTIONAL)
If the MI 12 is hidden from the operator,
a remote lamp or bleeper may be placed in
a position where it is easily seen or heard.
TWO OMMs
If it is not possible for one OMM to
cover the full range of movement of
the LTO2 OMP, then a second OMM
may be added. Both OMM's act as
one receiver over the area they cover.
CNC
machine
control

1-4 OPERATING ENVELOPE - see note page 1-6
15°
60°
LP2-LTO2 + OMM
Probe and OMM diodes must be
mutually in each others field of
view, and within the performance
envelope shown
2 (6.6)
OMM
0°
60°
45°
30°
15°
45°
60°
Optical
centre
line
LTO2- OMP
45°
30° 15°
15°
30°
60°
45°
SWITCH-ON/OFF RANGE
The OMP must be within
2 m (6.6 ft) of the OMM.
OPERATING RANGE
The OMP must be within
2 m (6.6 ft) of the OMM.
Rotation of OMP window
to be within +/-15 degrees
of optical centreline.
30°
SWITCH ON/OFF
OPERATING
Range metres (feet)
0,5 (1.6) 1 (3.3) 1,5 (4.9)
1 (3.3)
1,5 (4.9)
2 (6.6)
0,5 (1.6)

1-5
OPERATING ENVELOPE - see note page 1-6
LP2-LTO2 + O-M-I
Probe and O-M-I diodes must be
mutually in each others field of view,
and within the performance envelope
shown.
60°
O-M-I
60°
45°
30°
15°
15°
45°
60°
LTO2- OMP
15°
30°
45°
60°
45°
30°
15°
0°
Optical
centre
line
30°
SWITCH ON/OFF
OPERATING
Range metres (feet)
0,5 (1.6) 1 (3.3) 1,5 (4.9) 2 (6.6)
1 (3.3)
1,5 (4.9)
2 (6.6)
0,5 (1.6)
SWITCH-ON/OFF RANGE
The OMP must be within
2 m (6.6 ft) of the O-M-I.
OPERATING RANGE
The OMP must be within
2 m (6.6 ft) of the O-M-I.
Rotation of OMP window
to be within +/-15 degrees
of optical centreline.

1-6 SYSTEM PERFORMANCE
OPERATING ENVELOPE
See pages 1-4 and 1-5
Natural reflective surfaces within the machine may
increase the signal transmission range.
Coolant residue accumulating on the OMP, OMM
or O-M-I windows will have a detrimental effect
on transmission performance. Wipe clean as often as
is necessary to maintain unrestricted transmission.
Peformance in ambient temperature range 5°- 50° C
(41°- 122° F) is shown on pages 1-4 and 1-5.
Operation in temperatures of 0° to 5° C or 50° to 60° C
(32° to 41° F or 122° to 140° F) will result in some
reduction in range.
WARNING
If two systems are operating in close proximity to each
other, take care to ensure that signals transmitted from
the OMP on one machine, are not received by the OMM
or O-M-I on the other machine, and vice versa.
OMM and O-M-I POSITION
To assist finding the optimum position of the OMM
during system installation, signal strength outputs
are available on the MI 12 interface. O-M-I signal
strength is displayed on an O-M-I multi-coloured
LED.
PROBE-LTO2
OMM MI 12
O-M-I PSU3
Storage -10°C to 70° C (14°F to 158° F)
Operating 5°C to 50° C (41°F to 122° F)
TEMPERATURE
ENVIRONMENT

1-7
BATTERY POWER
DO NOT ALLOW COOLANT
OR DEBRIS TO ENTER THE
BATTERY COMPARTMENT Tighten
The O-M-I or MI 12 interface low battery LED will
light up when the battery needs to be replaced.
This must be done as soon as is practicable
following a gauging cycle.
To replace the battery, use a 3 mm hexagon key
to remove the battery cap. If battery cap is not
accessible, remove the OMP from the machine.
When replacing the battery insert the battery + end
first, then replace the cap. The battery cap screw
torque value is 1 Nm (0.74 lbf.ft).
If the OMP has been removed from the machine,
replace the OMP and recalibrate the probe system,
before commencing the next gauging cycle.
65 days 35 days
STAND-BY
LIFE
5% USAGE
72 min/day
TYPICAL BATTERY LIFE
Duracell lithium battery type DL123A
CONTINUOUS
LIFE
88 hours
Optical on
Timer off
Optical on
Timer off
Battery booster module
3V lithium battery
End cover
3mm hexagon key

The stylus tip can be adjusted to
correspond with the nominal tool tip
position with the aid of an on-centre
adjuster ring and 3 mm AF hexagon
key.
Align the OMP with the OMM/O-M-I,
then clamp the OMP in the turret.
The probe can now be moved
relative to the OMP.
1. Slacken screws A1/4 to 1/2
a turn. Spring washers will
maintain a light grip.
2. Place adjuster ring on OMP,
and position with one set of
opposing screws Bin line
with the machines Y axis.
3. Tighten screws C.
4. Adjust one screw Bat a time,
ensuring the opposing screw
remains clear of the body.
When the stylus is correctly
positioned, tighten screws A.
5. Slacken screws Cand remove
the adjuster ring.
A
C
B
Adjuster ring
X Axis
1-8 STYLUS ON-CENTRE ADJUSTMENT

360°
1-9
MA4 90° ADAPTOR
The MA4 right angle adaptor is
attached to the OMP and enables
the probe to be mounted at 90°
to the machine spindle centre line
This extra versatility allows
the probe to reach otherwise
inaccessible workpiece features.
The MA4 screws into the OMP,
and is tightened with the
C spanner. The C spanner is
also used to tighten the LP2
probe in its mounting.
After the MA4 is tightened in
the OMP, the three screws A
can be slackened. The MA4
can then be rotated and set in
any position through 360°.
Finally retighten the three screws A.
Extension bars up to 150 mm long
can be used between the MA4 and
probe.
See screw torque values page 1-11
C spanner
MA4
2,5 mm AF
A
LTO2
LP2

1-10
Time out and debounce switch settings
are shown on page 1-20.
SYSTEM OPERATION
OMM, MI 12 and O-M-I LED's continuously indicate system status during operation.
STAND-BY MODE/OPERATING MODE
To conserve battery life, the LTO2 is held in the
stand-by mode, until a switch-on signal is sent from
the CNC control, via the OMM + MI 12 or O-M-I.
The LTO2 is only active during the operating mode.
LTO2 SWITCH-ON
To initiate an inspection routine, the probe is
indexed to the tool cutting position, and switch-on
is commanded.
SWITCH-ON OPTIONS
1. Machine Start - Software M code command.
2. MI 12 interface manual start (OMM version only).
3. Auto Start - start signal at one second intervals.
The MI 12 and O-M-I are factory set to
machine start.
LTO2-OMP SWITCH-OFF (TIME-OUT OPTIONS)
A timer switches the OMP off, after a selected time
interval known as time out. Four time-out options
are available - 5 sec, 9 sec, 33 sec or 134 sec.
The LTO2 is factory set to time-out after 33 sec.
During the operating mode each probe contact
causes the timer to reset-on for a further 33 sec
(factory set) or 134 sec (optional) , if no further
probe contacts are made, the LTO2 reverts
to stand-by mode after 33 sec or 134 sec.
(33 sec or 134 sec reset times apply to 5sec and
9 sec time out options if the probe is triggered).
Note: A start signal will also reset the timer.
DEBOUNCE TIME
When the probe switches off, there is a delay
before it can be switched back on again.
This is known as the debounce time.
Two debounce time options are available
- 5 sec or 9 sec.
The debounce time is factory set to 5 sec.