Renishaw LTO2 Installation And User Manual Download Page 23

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FAULT FINDING - If in doubt, consult your probe supplier.

POOR PROBE REPEATABILITY

Probing occurs within

Review probe software.

machines acceleration
and deceleration zones.

Probe feedrate too high.

Perform simple repeatability
trials at various speeds.

Temperature variation

Minimise temperature

causes excessive

changes.

machine and

Increase frequency

workpiece movement.

of calibration.

Machine has poor

Perform health check on

repeatability due to

machine.

loose encoders, tight
slideways and/or
accident damage.

PROBE FAILS TO SWITCH OFF

Probe in Time Out mode.

Wait a minimum 2 min
20 sec for probe to switch
off.

Turret indexed, while

Restore turret to probing

probe switched on.

position.

Probe is inadvertantly

Increase distance between

switched on by

probe and OMM/O-M-I.

OMM/O-M-I.

Reduce OMM/O-M-I signal
strength.

PROBE STATUS LED FAILS TO ILLUMINATE

Battery incorrectly

Check battery installation.

fitted.

MI 12 POWER LED FAILS TO ILLUMINATE
WITH POWER ON

Faulty electrical contact.

Check all connections.

Fuse blown.

Locate and replace blown
fuse.

Incorrect power supply.

Ensure power supply is
24 V DC.

MI 12 ERROR LED REMAINS ILLUMINATED

Beams not aligned.Check optical alignment.

Beams obstructed.

Clear obstruction.

Probe not switched on.

Check if switched on.

MI 12 LOW BATTERY LED REMAINS ILLUMINATED

Battery incorrectly

Check battery installation.

fitted.

Battery dead.

Replace battery.

PROBE STATUS LED REMAINS ILLUMINATED

Battery voltage below

Replace battery.

useable level.

Summary of Contents for LTO2

Page 1: ...Installation and user s guide H 2000 5032 04 B LTO2 probe system for lathes ...

Page 2: ...32 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 obligati...

Page 3: ...Installation and user s guide LP2 LTO2 inspection system ...

Page 4: ...ssly 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...

Page 5: ...ægelse 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 bring...

Page 6: ...ent 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 permi...

Page 7: ...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 lukko...

Page 8: ...l 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 fabbrican...

Page 9: ...nterbloqueios 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...

Page 10: ...NT 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 applicati...

Page 11: ...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 ...

Page 12: ...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...

Page 13: ...e 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 ...

Page 14: ... 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 ...

Page 15: ... 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 ...

Page 16: ...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 insta...

Page 17: ... 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 ba...

Page 18: ...MP 1 Slacken screws A 1 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 B in line with the machines Y axis 3 Tighten screws C 4 Adjust one screw B at a time ensuring the opposing screw remains clear of the body When the stylus is correctly positioned tighten screws A 5 Slacken screws C and remove the adjuster ring ...

Page 19: ...he 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 20: ...I 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 opti...

Page 21: ... 2 Nm 1 47 lbf ft C spanner M16 THREAD Normal 10 12 Nm 7 37 8 84 lbf ft Maximum 20 Nm 14 74 lbf ft STYLUS 2 5mm AF 1 1 Nm 0 81 lbf ft PROBE M16 3 mm AF 2 Nm 1 47 lbf ft OMM or O M I 25 mm AF 25 Nm 18 44 lbf ft 3 mm AF 2 6 Nm 1 91 lbf ft Weak link 1 20 1 3 Nm 0 87 0 94 lbf ft Weak link 1 20 1 3 Nm 0 87 0 94 lbf ft ...

Page 22: ...are probe path Probe length offset Review probe software missing PROBE STOPS IN MID CYCLE Beam obstructed Check O M I MI 12 error LED Remove obstruction Probe collision Find cause and rectify Damaged cable Check cables Power supply lost Check power supply Probe unable to find Part missing or out of target surface position PROBE FAILS TO SWITCH ON Probe is already If necessary switch switched on pr...

Page 23: ...estore turret to probing probe switched on position Probe is inadvertantly Increase distance between switched on by probe and OMM O M I OMM O M I Reduce OMM O M I signal strength PROBE STATUS LED FAILS TO ILLUMINATE Battery incorrectly Check battery installation fitted MI 12 POWER LED FAILS TO ILLUMINATE WITH POWER ON Faulty electrical contact Check all connections Fuse blown Locate and replace bl...

Page 24: ...rom the machine to prevent any possibility of earth loop Ensure there are no arc welders stroboscopes or other high intensity light sources in close proximity to the probe system Poorly regulated power Ensure power supply is power supply correctly regulated Excessive machine vibration Eliminate vibration Loose mountings or styli Check and tighten loose connections Low LP2 spring pressure Increase ...

Page 25: ...s dimensions mm in 33 2 1 30 38 1 49 24 0 94 360 40 8 1 6 15 0 59 Ø40 1 57 MA4 90 ADAPTOR The MA4 90 adaptor enables the LP2 probe to be mounted at 90 to the machine turret and set through 360 The MA4 uses the same M16 thread as the LP2 LPE EXTENSION BARS Further reach is obtained by adding an LPE extension bar between the LP2 probe and LTO2 Extensions use the same M16 thread as the LP2 A maximum ...

Page 26: ... maintain effective signal transmission APPENDIX 3 OMM OPTICAL MODULE MACHINE The OMM is fully described in User s Guide H 2000 5044 1 2 3 4 The PSU3 provides a 24 V supply for Renishaw interface units when a power supply is not available from the CNC machine control APPENDIX 2 PSU3 POWER SUPPLY UNIT The PSU3 is fully described in User s Guide H 2000 5057 Rear view Mains switch On Off Power LED Li...

Page 27: ...e out of range probe switched off etc 3 LED low battery Replace probe battery as soon as practicable after this LED lights up 4 LED probe status Lit when probe is seated Off when stylus is deflected or an error has occurred 5 LED power Lit when power is on 6 Start button switch SW1 Manual start push button Press button to switch system to operating mode Alternatively a signal from the machine cont...

Page 28: ...cates as follows Red Signal received from the probe is either too weak or not there at all i e no signal Yellow Signal received is marginal i e The O M I is at the edge of its operating envelope Correct operation in this region cannot be guaranteed Green Signal received is good and system will operate correctly Note 1 During a start transmission the SIGNAL LED will change through red to yellow and...

Page 29: ...econd Replace the OMP battery as soon as is practicable after the LED starts flashing 5 LED red green PROBE STATUS This bi colour LED is lit when the O M I is powered Green Probe is seated Red Probe is triggered or an error has occurred The change of colour of this LED will coincide with the Probe Status output devices changing state 6 LED red ERROR Lit when an error condition exists i e optical b...

Page 30: ...nt plate Keep all components clean do not allow particles to enter the probe Do not strain or disconnect wires Use only the correct washers Do not use the tip of pencil for switch adjustment Do not touch electronic components when changing switch settings 5 9 5 5 ON OFF ON ON ON ON OFF OFF SW1 SW2 SW3 Time out Seconds Debounce time Seconds Factory set 5 9 33 134 OFF OFF ON OFF TERMS see page 1 10 ...

Page 31: ...ly LP2 A 2063 6098 LP2 probe complete with two C spanners and TK1 tool kit LP2H A 2064 0002 LP2H probe complete with two C spanners and TK1 tool kit Service kit A 2063 7542 LP2 service kit comprises front cover eyelid seal spring and O ring MA4 adaptor A 2063 7600 MA4 90 adaptor Extension bar A 2063 7001 LPE1 extension bar Ø25 x 50 mm long Extension bar A 2063 7002 LPE2 extension bar Ø25 x 100 mm ...

Page 32: ...a Renishaw Representative Office Jakarta T 62 21 428 70153 F 62 21 424 3934 E indonesia renishaw com Italy Renishaw S p A Torino T 39 011 966 10 52 F 39 011 966 40 83 E italy renishaw com Japan Renishaw K K Tokyo T 81 3 5332 6021 F 81 3 5332 6025 E japan renishaw com The Netherlands Renishaw International BV Breda T 31 76 543 11 00 F 31 76 543 11 09 E benelux renishaw com Singapore Renishaw Repres...

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