LTO2 probe system for lathes – Installation and user's guide
Contents
1. board Panel mounting kit for MI 12 machine interface unit PSUS3 power supply unit 85 V 264 V input 30 Appendix A MA4 adaptor and extension bars The MA4 90 adaptor and extension bars are described in Renishaw data sheet AEH H 2000 2120 Dimensions mm in MA4 90 adaptor 33 2 1 30 The adaptor enables the LP2 probe to be mounted at 90 to the machine turret and 360 d set through 360 NJ J The MA4 uses the same M16 thread as 24 0 94 the LP2 15 0 59 40 8 1 6 38 1 49 LPE extension bars LPE 25 0 98 LP2 extension bar or 1 inch Further reach may be Stylus probe 225 0 98 Tolerance g6 obtained by fitting an LPE extension bar between the LP2 probe and LTO2T OMP Til lg Extension bars use the same io M16 thread as the LP2 probe Only one extension bar is 40 8 LPE1 50 1 96 50 5 61 9 1 6 LPE2 100 3 94 1 99 2 44 LPE3 150 5 90 permitted per installation Renishaw plc T 44 0 1453 524524 RE N ISH AW e New Mills Wotton under Edge F 44 0 1453 524901 Gloucestershire GL12 8JR E uk renishaw com apply innovation United Kingdom www renishaw com For worldwide contact details please visit our main web site at www renishaw com contact H 2000 5032 062. for workpiece lighting the OMM should be kept at a distance of at least one metre from the Source f quartz halogen lamps of greater than 60 W are used the OMM should be kept at a distance of at least two metres from direct emission from source li should also be noted that direct sunlight should not be allowed to shine on the OMM window as this could cause errors If it is not convenient to maintain these distances and any of the problems listed above are experienced then a shield similar to a camera lens hood can be used to shield the OMM from direct contact with the interference A CAUTION 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 OMI on the other machine and vice versa OMM and OMI positioning To assist finding the optimum position of the OMM during system installation signal strength outputs are available on the MI 12 interface OMI signal strength is displayed on an OMI multi coloured LED 16 Probe mounting and stylus on centre adjustment Probe mounting The LTO2 OMP mounts directly in the lathe turret 1 Align the OMP with the OMM OMI then clamp the OMP in the turret The probe can now be moved relative to the OMP On centre adjustment On centre adjustment of the stylus is carried out using the on centre adjuster ring Use it to adjust the stylus tip so that it corresp
3. 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 modifica tions 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 Preliminary information A Safety Only qualified persons should change the switch settings or replace fuses Where appropriate remove the mains supply from units before removing covers 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 CNC machine CNC machine tools must always be operated by competent persons in accordance with manufacturers instructions Caring for the probe LTO2 OMP Keep system components clean and treat the probe system as a precision tool Probe IP rating IPX8 Related publications As you install the LTO
4. 2 probe system you will also need to refer to one or more of the publications listed below for details of how to install the ancillary equipment Optical module machine OMM installation and user s guide Renishaw part No H 2000 5044 MI 12 interface unit installation and user s guide Renishaw part No H 2000 5073 Optical machine interface OMI installation and user s guide Renishaw part No H 2000 5062 e PSUS power supply unit installation and user s guide Renishaw part No H 2000 5057 4 LTO2 probe system components The LTO2 probe system comprises the following main components An LTO2 optical module probe OMP A 3D touch trigger inspection probe X Y and Z directions This is either a Renishaw LP2 or LP2H probe The LP2 is more sensitive that the LP2H which has a greater resistance to vibration and can support heavier styli The probe is mounted in the OMP An optical transmitter and receiver unit OMM and an MI 12 machine interface unit The interface unit may be either a free standing MI 12 interface unit or an MI 12 interface board Introduction Alternatively an optical receiver and machine interface unit OMI may be used instead of the OMM and MI 12 interface This unit combines the functions of both the OMM and MI 12 in one unit A PSU3 power supply unit This is an optional unit It provides a 24 V supply to the interface unit when a suitable p
5. F OFF Factory set 21 Debounce time Seconds 22 Battery life expectancy Low battery indication The machine control may also be programmed to flag up a low battery alarm When either the MI 12 or OMI low battery LED lights up battery voltage is low and the end of The OMI or MI 12 interface low battery LED useable battery life is approaching lights when the battery needs to be replaced Replace the battery as soon as is practicable The low battery LED only lights during the following a gauging cycle probe operating mode Typical battery life Sandby 72 minutes per day life Optical on Optical on Timer off Timer off 65 days 35 days 88 hours Removing and replacing the battery 23 Battery booster module 3 V lithium battery End cover DO NOT allow coolant or debris to enter the battery compartment DO NOT leave an exhausted battery in the probe Dispose of an exhausted battery in accordance with local regulations 3 mm hexagon key Removing the battery Replacing the battery 1 If the end cover is not accessible remove 1 Insert the battery into the battery the LTO2 OMP from the machine turret compartment positive end first 2 Unscrew the end cover with a 3 mm 2 Refit the end cover and tighten to 1 0 Nm hexagon key 0 74 Ibf ft 3 Remove the battery 3 Refit the LTO2 OMP in the turret if removed 4 Ifthe LTO2 OMP has been removed from the turret recalibrate the probe system before u
6. Installation and user s guide RENISHAW A H 2000 5032 06 A apply innovation LTO2 probe system for lathes 2001 2005 Renishaw plc All rights reserved 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 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 Renishaw part no H 2000 5032 06 A Issued 06 2005 Trademarks RENISHAWO and the probe emblem used in the RENISHAW logo are registered trademarks of Renishaw plc in the UK and other countries apply innovation is a trademark of Renishaw plc All other brand names and product names used in this document are trade names service marks trademarks or registered trademarks of their respective owners Patents Features of the Renishaw equipment described in this guide and features of similar equipment are the subject of the following patents and or patent a
7. ank complete with battery 3 mm hexagon key stylus on centre adjuster and user s guide 3 V lithium battery Duracell type DL123A Battery cap assembly LP2 probe complete with two C spanners and TK1 tool kit LP2H probe complete with two C spanners and TK1 tool kit LP2 service kit comprises front cover eyelid seal spring and O ring MAA 90 adaptor LPE1 extension bar 025 x 50 mm long LPE2 extension bar 025 x 100 mm long LPES extension bar 025 x 150 mm long Ceramic PS3 1C stylus 50 mm long with 6 mm ruby ball Parts list Please quote the Part no when ordering equipment 29 we Pat Bewpion Protection Protection Protection TK1 C spanner OMM Mounting brkt OMI MI 12 MI 12B Panel mtg PSUS M 5000 7582 M 5000 7587 M 5000 7588 A 2053 7531 A 2063 7587 A 2033 0576 A 2033 0830 A 2115 0001 A 2075 0142 A 2075 0141 A 2033 0690 A 2019 0018 Stylus adaptor with weak link collision protection for straight steel Styli Screw with weak link collision protection for disk steel styli Screw with weak link collision protection for swivel adaptor Probe head tool kit comprising stylus tool hexagon keys 1 5 mm 2 0 mm 2 5 mm and 4 0 mm C spanner OMM OMI MI 12 and PSUS3 Optical module machine OMM complete with cable Mounting bracket for OMM OMI OMMR Optical module interface OMI complete with cable MI 12 machine interface unit MI 12 machine interface
8. chine control input NOTE Auto start should not be selected when the LTO2 is set to the Optical on Optical off option An Auto start signal will force the LTO2 to switch on and then off at 5 or 9 second intervals Modes of operation cont d After the probe is switched on the debounce time must elapse before the probe can be switched off Switch off mode Timeout A timer switch automatically returns the probe to the standby mode after a selected time interval Four timeout options are provided 5 seconds 9 seconds 33 seconds and 134 seconds The timer is factory set to 33 seconds Other timeout periods are selected by resetting an internal switch When the timeout period is set to either 33 seconds or 134 seconds the timer is reset for a further 33 or 134 seconds each time the probe triggers during the operating mode When the timeout period is set to either 5 seconds or 9 seconds the timer is not reset each time the probe triggers during the operating mode NOTE A start signal received during the time the probe is on has no effect on the timeout 19 20 T IMPORTANT Only qualified persons should change the switch settings Gaining access to the switch 1 Remove the two screws 1 and washers 2 3 that secure the front plate 4 see the figure on the page opposite NOTE Wires are attached to the back of the front plate 4 Do NOT pull off the plate but ease it off carefully 2 Remove the fr
9. erating range The LTO2 OMP must be within 4 m 13 12 ft of the OMM Rotation of the LTO2 OMP window is to be within 20 degrees of the optical centreline Performance LTO2 and OMM 11 2 3 4 6 5 98 43 42 60 Optical centre line 60 45 Range metres feet lg SWITCH ON OFF OPERATING 60 LTO2 OMP 12 Performance LTO2 and OMI LTO2 and OMI The diodes of the LTO2 OMP and OMI must be mutually in the others field of view and within the performance envelope shown on the page opposite Switch On Off range The LTO2 OMP must be within 4 m 13 12 ft of the OMI Operating range The LTO2 OMP must be within 4 m 13 12 ft of the OMI Rotation of the LTO2 OMP window is to be within 30 degrees of the optical centreline Performance LTO2 and OMI 13 X 2 E LZ 4 CLS Optical centre line 45 60 4 15 Range metres feet i N lg SWITCH ON OFF 30 OPERATING t 2 6 5 4 13 12 3 9 8 1 3 3 F f L LTO2 OMP 14 Installation points to consider Installation is the responsibility of your Renishaw supplier or the machine tool manufacturer Information is given in this section to assist in overcoming basic problems You are recommended to seek specialist advice where this is appropriate Cable routing and electrical interference Care should be taken to ensure that signal cables are routed away
10. from high current sources e g high current cables axis drive motors and 3 phase transformers Optical interference Renishaw optical transmission systems are designed to be immune from normal optical interference However there is a level above which powerful light sources will interfere with the optical system There are two categories of interference Intermittent light sources Local strong continuous light sources Intermittent light sources Rotating type beacons with incandescent light source This type of beacon will not cause interference unless it is situated within two metres of the OMM and its mirror reflects light directly at the OMM Xenon type beacons This type of beacon produces fast very powerful pulses of light and cannot safely be used near the OMM It is undesirable to operate the system in an environment that contains Xenon beacons i e on machine tools or AGVs Arc MIG or TIG welding These can produce optical interference similar to that of a Xenon beacon Xenon beacon restrictions therefore apply Installation points to consider cont d 15 Other interfering light sources It is possible that fast changes in light levels e g a match being struck or a lighter being lit will cause errors if the source is within 500 mm of the OMM window Abnormal changes in light levels must therefore be avoided Local strong continuous light sources e f fluorescent lamps are used
11. g can be fitted between the MA4 and the probe using the C spanner provided 17 18 Modes of operation The LTO2 has two modes of operation 1 Standby mode the OMP uses only a small current while passively waiting for the switch on signal This helps conserve battery life 2 Operating mode this is activated by one of the methods described in Switch on options Signals are transmitted by the probe only during the operating mode LTO2 power on off LTO2 power switch on off occurs only when the LTO2 is located within the switch on off envelope of the OMP and OMM OMI Debounce time After the probe is switched on a time delay must occur before it can be switched off This is Known as the debounce time The delay is factory set to 5 seconds but it can be reset to 9 seconds by resetting the internal switch A similar delay occurs after the probe is Modes of operation switched off and before it can be switched on again Switch on options Three options are provided for switching on the LTO2 These are selected by switches on the MI 12 or OMI for details see the MI 12 or OMI guides 1 Manual start Optical on This is initiated by the MI 12 start button on the OMM version only 2 Machine start Optical on This is initiated by a software M code command factory set mode 3 Auto start Optical on This causes the system to send an optical start signal once every second and does not require a ma
12. he MI 12 changes state and a bleep is emitted If the MI 12 is hidden from the operator an optional remote lamp or bleeper may be placed in a position where it is easily seen or heard Typical probe systems Mounting bracket OMM optical transmitter and receiver OMI optical receiver and machine interface OMP optical module probe OMI one OMM one or two CNC control PR Mi 12 CNC control LTO2 OMP Workpiece OMM OMI LP2 or LP2H inspection probe Optional PSU3 fae power supply unit turret i Po Rensnaw PSU C Typical tool Bar LS i setting probe s MI 12 interface unit ld MI 5 MI 8 or MI 8 4 or MI 12 board interface unit E machine control I RENERAW Pu a FU IRE um Optional PSU3 E i A E power supply Ku 8 3 Socket for LP2 unit Using two OMMs 7 MI 12 machine interface unit e PT is row Sa nt LTO2 OMP MI 12 machine interface board PSU3 power supply unit machine optional Lathe control turret LP2 or LP2H ee Workpiece inspection probe indicator optional 8 Dimensions Dimensions in mm in 30 30 225 0 98 or 21 0 inch O25 Tolerance g6 262 2 44 40 8 50 5 61 9 2 44 1 6 1 99 System performance Environment PROBE LTO2 OMM MI 12 INTERFACE OMI PSU3 TEMPERATURE 10 C to 70 C 14 F to 158 F Storage 5 C to 50 C 41 F to 122 F Operating Ope
13. oducts Name Description LTO2 series Optical signal transmission systems have been manufactured in conformity with the following standards BS EN 61326 1998 A1 1998 A2 2001 Electrical equipment for measurement control and laboratory use EMC requirements Immunity to annex A industrial locations Emissions to class A non domestic limits BS EN 60825 1 1993 Safety of laser products A1 1997 A2 2001 Part 1 Equipment classification requirements and user s guide and that they comply with the requirements of the following directives as amended 89 336 EEC 73 23 EEC Electromagnetic compatibility Low voltage The above information is summarised from the EC Declarations of Conformity available from Renishaw on request 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
14. onds with the nominal tool tip position 1 Slacken screws A between a quarter turn and a half turn The spring washers will maintain a light grip 2 Place the adjuster ring onto the OMP and position it with one set of opposing screws B in line with the Y axis of the machine 3 Tighten screws C 4 Adjust screws B to move the probe Progressively slacken one screw and tighten the opposite screw as the final setting is approached Use two hexagon keys to do this When the stylus is correctly positioned tighten screws A to 2 6 Nm 1 91 Ibf ft Slacken screws B and C and remove the adjuster ring Attaching the MA4 90 adaptor and extensions MA4 90 adaptor This adaptor 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 Screw the MA4 into the OMP and tighten it with the C spanner to 10 12 Nm 7 37 8 84 Ibf ft The C spanner is also used to tighten the LP2 or LP2H probe in its mounting Slacken the three screws A Rotate the MA4 to any position through 360 Tighten the three screws A to 1 1 Nm 0 81 Ibf ft Screw the LP2 or LP2H probe into the MA4 adaptor and tighten it with the C spanner to 10 12 Nm 7 37 8 84 Ibf ft C spanner 10 12 Nm 7 37 8 84 Ibf ft MA4 rotation 1 1 Nm 0 81 Ibf ft LPE extension bars not shown Extension bars up to 150 mm lon
15. ont plate 4 taking care not to strain the wires The Dual In Line DIL switch 5 is now accessible 3 If the O ring shows signs of damage and needs to be replaced unsolder the wires from the front plate 4 Setting the LTO2 OMP switch Switch settings NOTE When changing the switch settings Do not touch electronic components Do not strain or disconnect wires Do not use the tip of a pencil to change the settings Keep all components clean do not allow coolant or particles to enter the probe body The functions and factory settings of the switches are shown on the figure on the page opposite Refitting the front plate When the front plate of the probe is removed the O ring seal that protects the electronics is disturbed 1 To ensure that the integrity of sealing is maintained when the front plate is refitted check the condition of the O ring and replace it if necessary Grease the O ring before fitting it Setting the LTO2 OMP switch cont d Switch 5 If the wires were unsoldered to allow the O ring to be replaced resolder them to the back of the front plate 4 Refit the front plate 4 Refit the two flat washers 3 dished washers 2 and screws 1 Tighten the screws to 2 4 2 6 Nm 1 76 1 91 Ibf ft cu 9 Screw 1 2 6 Nm 1 91 Ibf ft Dished washer 2 Flat washer 3 Front plate 4 Switch settings ON 88 amp ON OFF ON 134 ON OF
16. ower supply is not available from the CNC machine controller Renishaw software for probe routines LPE extension bars One of these can be fitted between the OMP and the LP2 probe to provide greater access to workpiece features MA4 90 adaptor This allows the LP2 probe to be mounted at 90 to the machine turret and set through 360 Introduction cont d 5 Operation The LTO2 OMP is mounted in a tool position on the lathe turret and receives and transmits optical signals Power for operation is provided by an internal battery A 3D touch trigger inspection probe either an LP2 or LP2H is mounted on the OMP A workpiece setup and inspection cycle may be included at any stage of the machining process When a cycle is initiated signals pass from the CNC control to the OMP via MI 12 and OMM units Signals also return along the same route The MI 12 interface unit converts the probe signals into the correct format for the CNC machine control Instead of the OMM and MI 12 combination an OMI may have been installed This process signals in the same way as the OMM and MI 12 Using two OMMs If it is not possible for one OMM to cover the full range of movement of the LTO2 OMP a second OMM may be added The reception cones of the OMMs are arranged to overlap so that they act as one receiver over the area they cover Remote indication When the inspection probe contacts a surface a PROBE STATUS LED on t
17. pplications EP 0283486 JP 2 653 806 US 4899094 EP 0337669 JP 2 945 709 US 5 040 931 EP 0390342 JP 2 994 401 US 5 150 529 EP 0695926 US 5 669 151 WO 88 02139 Contents 1 PRELIMINARY AEE i e t CNC machirie creer tertie rencecse Caring for the probe LTO2 OMP Probe IP TAUNG TE m Related publications GENERAL WMP OCCU ON M m Typical probe systems Using two OMMS irri intendi tenendas DIMENSIONS System performance Performance LTO2 and OMM Performance LTO2 and OMI INSTALLATION AND CALIBRATION Installation points to consider Probe mounting and stylus on centre adjustMent ccessiciceseneecaceseswseasatencapoeecseacsents Attaching the MA4 90 adaptor and PEXICNSIONS 5er USING THE PROBE Modes of operation 18 Setting the LTO2 OMP switches 20 MAINTENANCE Battery life expectancy ss 22 Removing and replacing the battery 23 Screw torque values eeeesssss 24 FAULT FINDING 25 PARTS LIST 28 APPENDIX A MA4 adaptor and extension bars 30 Preliminary information EC DECLARATION OF CONFORMITY Renishaw plc declares that the pr
18. r out of position PROBE CRASHES Inspection probe using When two systems are tool setting probe active isolate the tool signals setting probe Workpiece obstructing Review probe software probe path Probe length offset missing Review probe software POOR PROBE REPEATABILITY Debris on the part Turret repeatability poor Clean the part Verify probe repeatability using a single point move Loose mounting of probe loose stylus Check and tighten as appropriate Calibration and update Review probe software of offsets not occurring Calibration and probing Review probe software speeds not the same Calibrated feature has Check the position moved Measurement occurs as the stylus leaves the surface Review probe software 26 POOR PROBE REPEATABILITY Probing occurs within machine s acceleration and deceleration zones Review probe software Probe feedrate too Perform simple high repeatability trials at various speeds Temperature variation Causes excessive machine and workpiece movement Minimise temperature changes Increase frequency of calibration Perform health check on the machine Machine has poor repeatability due to loose encoders tight slideways and or accident damage PROBE FAILS TO SWITCH OFF Probe is in Timeout mode Wait a minimum of 2 min 20 seconds for the probe to switch off Restore the turret to the probing position Turret inde
19. rating envelope See pages 11 and 13 Natural reflective surfaces within the machine may increase the signal transmission range Performance plots in the ambient temperature range 5 to 50 C 41 to 122 F are shown on pages 11 and 13 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 4 CAUTION Switch power off when working inside electrical components The probe is a precision tool Always handle it with care Before using the probe ensure it is firmly secured in its mounting Regular maintenance Although Renishaw probes require little maintenance the performance is adversely affected if dirt chips or liquids are allowed to enter the sealed working parts Therefore keep all components clean and free from grease and oil Periodically check cables for signs of damage corrosion or loose connections Cleaning Coolant residue accumulating on the probe transmitter LEDs and receiving diode and on the OMM or OMI windows has a detrimental effect on transmission performance Wipe clean as often as is necessary to maintain unrestricted transmission 10 Performance LTO2 and OMM LTO2 and OMM The diodes of the LTO2 OMP and OMM must be mutually in the others field of view and within the performance envelope shown on the page opposite Switch On Off range The LTO2 OMP must be within 4 m 13 12 ft of the OMM Op
20. se 24 Screw torque values Nm Ibf ft M16 thread 3 ques Normal 10 12 Nm 7 37 8 84 Ibf ft 1 47 Ibf ft MER as 20 Nm 14 74 Ibf ft je 8mmAF f 4 non te e Ies i QU S ue pu S 3 mm AF pup e 0 73 Ibf ft HOLD 25 mm AF LTO2 OMP 25 Nm 18 44 Ibf ft EXTENSION C spanner 2 Nm 1 47 Ibf ft A 4 Weak link 2 5mm AF Weak NN 1 20 1 3 Nm 1 1 Nm 1 20 1 3 Nm 0 87 0 94 Ibf ft 0 81 Ibf ft 0 87 0 94 Ibf ft Fault finding If in doubt consult your probe supplier 25 PROBE FAILS TO SWITCH ON If necessary switch off the probe Probe is already switched on Dead battery Change battery Check battery installation Battery installed incorrectly Probe is not properly Check alignment and aligned with OMM OMI that the OMM OMI fixing is secure Check that OMM OMI window is clean Remove the obstruction Beam obstructed OMM OMI signal is too weak See performance envelope on pages 11 and 13 See the OMI installation and user s guide Check that a stable 24 V supply is available Check connections and fuses No OMI start signal No power to MI 12 or OMI PROBE STOPS IN MID CYCLE Check OMI MI 12 error LED Remove the obstruction Beam is obstructed Find the cause and rectify Check the cables Probe collision Damaged cable Power supply lost Probe unable to find the target surface Check the power supply Part is missing o
21. sibility 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 the power supply is correctly supply regulated Excessive machine Eliminate vibration vibration Loose mountings or styli Check and tighten loose connections Low LP2 spring pressure Increase the spring pressure PROBE FAILS TO RESEAT CORRECTLY Probe trigger occurred Move the stylus clear of the workpiece on reseat Inner probe diaphragm Return to the supplier if the inner is damaged diaphragm is damaged 28 System kit System kit System kit System kit LTO2 OMP Battery Battery cap LP2 LP2H Service kit MA4 adaptor Extension bar Extension bar Extension bar Stylus A 2030 0100 A 2030 0101 A 2115 0028 A 2115 0029 A 2030 0121 P BT03 0006 A 2030 0370 A 2063 6098 A 2064 0002 A 2063 7542 A 2063 7600 A 2063 7001 A 2063 7002 A 2063 7003 A 5000 3709 Parts list Please quote the Part no when ordering equipment Description Comprising LP2 probe PS3 1C stylus LTO2 OMP OMM with mounting bracket and MI 12 interface unit Comprising LP2H probe PS3 1C stylus LTO2 OMP OMM with mounting bracket and MI 12 interface unit Comprising LP2 probe PS3 1C stylus LTO2 OMP OMI with mounting bracket Comprising LP2H probe PS3 1C stylus LTO2 OMP OMI with mounting bracket LTO2 OMP 25 mm sh
22. xed while the probe is switched on Increase the distance between the probe and OMM OMI Reduce the OMM OMI signal strength Probe is inadvertently switched on by OMM OMI Fault finding If in doubt consult your probe supplier PROBE STATUS LED FAILS TO ILLUMINATE Check the battery installation Battery is incorrectly 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 is not aligned Check optical alignment Beams is obstructed Clear obstruction Probe is not switched Check that it is switched on on MI 12 LOW BATTERY LED REMAINS ILLUMINATED Battery is incorrectly fitted Check the battery installation Battery dead Replace the battery PROBE STATUS LED REMAINS ILLUMINATED Battery voltage below Replace the battery useable level Fault finding If in doubt consult your probe supplier 27 PROBE IS TRANSMITTING SPURIOUS READINGS Damaged cables Check and replace the cable if damage is found Electrical or optical Move transmission cables away from interference other cables carrying high currents System malfunctioning or Shield from intense light sources e g inducing intermittent errors xenon beams Electrically isolate the OMM from the machine to prevent any pos
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