MCU1, MCUlite-2 and MCU5 user's guide
Contents
1. MCUlite 2 The MCUlite 2 is a basic low cost joystick It has the controls necessary to control a 3 axis touch trigger CMM but without the sophistication of a LCD display screen NOTE The MCUlite 2 is not compatible with UCC1 MCU5 The MCU5 is a derivative of the MCU1 joystick the only difference being the addition of a STOP switch on the membrane keypad The MCU5 has been developed for use with Renishaw s REVO dynamic measuring head and probe system where the STOP switch is provided to augment the ESTOP switch The ESTOP switch has to cut the motor power to all the axes including the two REVO axes This is not always appropriate as the REVO A axis will drop to 0 by gravity Operation of the STOP switch will bring the CMM to a fast stop but the motors will remain engaged in the hold state file C TEMP hhCOD2 htm 02 01 2013 MCU1 MCUlite 2 and MCUS user s guide Page 10 of 31 NOTE The MCU5 is not compatible with UCC1 file C TEMP hhCOD2 htm 02 01 2013 MCU1 MCUlite 2 and MCUS user s guide Page 11 of 31 MCU1 features Fa RENISHAW 4 A MCU1 MCU robe 5 J Disabled Enabled Joystick Enable 16 17 18 ig Emergency stop Mode change button 2 12 1 1 Probe disabled LED red Axis systems select button a a file C TEMP hhC0D2 htm 02 01 2013 MCU1 MCUlite 2 and MCUS user s guide Page 12 of 31 b MCU enabled LED green 15 F1 function butto2. joystick enable button must be pushed e The axis locks must not be applied e The CMM application software must be in manual joystick mode e The probe must not be deflected unless probe override is on e No limit switches should be open unless disabled e The CMM position must be inside all soft limits if these are enabled The speeds are too low or too high e Check the joystick speeds and accelerations that are set in the UCC configuration file are correct e Check the operation of the fast slow switch Higher speeds will be obtained when this switch is active The motors disengage during joystick operation e If the joystick max speed is set to a high value the machine may be able to exceed the maximum move speed to cause an overspeed error e If the joystick max fast acceleration is set to too high a value the motor signals may attempt to exceed the overdrive limits and cause an overdrive fault e If the system proportional gains are set too high or the velocity gains are too low an overdrive fault may occur Speed override does not work correctly e This feature must be enabled separately from the general joystick enabling it is an entry in the UCC configuration file file C TEMP hhCOD2 htm 02 01 2013 MCU1 MCuUlite 2 and MCUS user s guide Page 30 of 31 NOTE Speed override ONLY works on DCC moves and scanning It is not operational when the MCU is in manual joystick mode Servos will no
3. 01 2013 MCU1 MCUlite 2 and MCUS user s guide Page 22 of 31 NOTE When the MCUlite 2 is in this mode the MCU status LED is amber and changes to green when a Joystick enable button is pressed CMM auto mode MCU1 and MCUS5 only This mode is not selectable via the MODE button but is automatically invoked whenever the UCC is placed into DCC mode automatic mode NOTE DCC mode is indicated on the LCD refer to section 4 3 For the MCUlite 2 it is indicated by the MCU status LED being RED Head mode Provides the user with control over the Renishaw PH10 PH20 or REVO heads In this mode the joystick will move either of the motorised head axis The LCD display will indicate the angle of the two head rotation axis For the PH10 the joystick fast slow button will give jog operation if not pressed or fast sweep operation if pressed For the REVO the fast slow button will control the speed If no head is fitted then the LCD screen will display None NOTE However to ensure correct operation the head type must be set correctly within the configuration ini file Head Mode PHIiE A 75 8 B 22 5 AUTO With the REVO or PH20 head there is an additional facility of SNAP ON The use of SNAP ON is controlled by the use of the left right axis lock button repeated pressing will toggle the facility on and off SNAP ON is displayed in text on the LCD display when it is selected When SNAP ON
4. C TEMP hhCOD2 htm 02 01 2013 MCU1 MCUlite 2 and MCUS user s guide Page 6 of 31 Care amp warranty Care of equipment Renishaw probes and associated systems are precision tools used for obtaining precise measurements and must therefore be treated with care Changes to Renishaw products Renishaw reserves the right to improve change or modify its hardware or software without incurring any obligations to make changes to Renishaw equipment previously sold Warranty Renishaw plc warrants its equipment for a limited period as set out in our standard terms and conditions of sale provided that it is installed exactly as defined in associated Renishaw documentation Prior consent must be obtained from Renishaw if non Renishaw equipment e g interfaces and or cabling is to be used or substituted Failure to comply with this will invalidate the Renishaw warranty Claims under warranty must be made from authorised service centres only which may be advised by the supplier or distributor file C TEMP hhCOD2 htm 02 01 2013 MCU1 MCUlite 2 and MCUS user s guide Page 7 of 31 References amp associated documents It is recommended that the following documentation be referred to when installing an MCU Renishaw documents Document number Title H 1000 5223 UCC2 installation guide H 1000 5109 UCClite 2 installation guide H 1000 5198 UCCFusion installation guide External documents National and international standards includin
5. MCU1 or MCU5 are in head mode the axis locks are applied to the comparable head axes On the MCU5 only when the joystick is in head mode and a REVO head is fitted the left right axis lock button is used to initialise cancel SNAP ON SNAP ON is the ability to move the head to the nearest multiple of a defined head angle These axis locks will only be active during manual MCU controlled CMM movements When the CMM is under DCC operation all axis locks will be released and be re latched when returning to manual operation Probe disable button Gives the CMM user the ability to move the CMM while the probe is triggered or disconnected by disabling the probe trigger signal WARNING When operating in this mode the probe is disabled and therefore probe contact with a surface will NOT stop the CMM No measured data will be returned to the CMM host computer The Probe disable function will only work while in manual mode and cannot be applied while in DCC Press and hold the Joystick enable button and then press the Probe disable button The CMM can now be moved irrespective of the probe trigger status Releasing the Joystick enable button cancels the Probe disable function In all modes the application of Probe disable is confirmed by the red Probe disabled LED being illuminated Engage button The engage button gives the CMM user the ability to engage or disengage the servos whils
6. axis lock is asserted and the joystick orientation is changed then the relative axis lock will be transposed also An arrow in the top right of the LCD indicates the orientation of the MCU see figure below and pressing the joystick orientation button will enable the user to scroll through the four operational positions The direction of the arrow is to indicate the Y axis direction of the machine when the machine co ordinate system is in force NOTE 1 When switching the system to CMM auto mode the joystick orientation feature will drop out and then be re asserted when the system is placed into CMM manual mode 2 MCUlite 2 does not have an orientation switch but the default orientation of the joystick can be preset by your CMM service provider y y pee Axis select button MCU1 and MCUS5 only The axis select button changes the CMM motion in any one of three different axis systems Machine axis green LED In this axis system the joystick directly controls the machine axes i e a forward deflection of the joystick produces a pure Y movement of the CMM This is the default machine setting when the machine is initialised Part axis red LED In this axis system the joystick controls the machine axes in the current part axis system i e a forward deflection of the joystick produces a movement in the part Y direction This could be a compound of 2 or 3 machine axes Stylus axis amber LED In this axis system the joystick c
7. is selected the up down and twist operation of the joystick will move the REVO or PH20 A and B axes normally but after about 1 second of the joystick being returned to its null position the head will automatically move to the nearest multiple of the snap angle The snap angle is configurable via the configuration file The maximum snap angle is 7 5 and the minimum is 0 05 Rotary table mode MCU1 and MCUS5 only This mode provides the user with control over a rotary table if it is connected to the system Twisting the joystick will cause rotary table movement The joystick fast slow button will control fast pressed or slow not pressed operation The LCD display will indicate its angle of rotation file C TEMP hhCOD2 htm 02 01 2013 MCU1 MCUlite 2 and MCUS user s guide Page 23 of 31 Sticky button mode MCU1 and MCUS5 only The purpose of Sticky button mode is to allow the user to alternate between two MCU modes without having to scroll through all of the enabled MCU modes This feature could be useful when generating a part program using the application software teach utility where alternating between CMM and head moves is often required If the use of Sticky button mode has been enabled by your CMM service provider you will notice that when a MCU mode is selected the title e g CMM Manual Head Mode etc will be highlighted by displaying it in reverse video see following example The hig
8. sensitive to the mode and operation of the MCU Please refer to the relevant operational mode section for further details Emergency stop The motors are disengaged when the emergency stop switch is operated any motorised head motion will also be stopped Speed override Controls the machine speed when the CMM is running a program under DCC mode It will also control the speed of the REVO head if fitted The LCD screen displays a percentage value of the programmed move speed when in DCC operation as shown below If the speed override is set to less than 10 the speed percentage shown on the LCD display will flash Auto Auto Speed Override 100 Speed Override 18 For MCU lite 2 the indication for the speed override being set below 10 is a flashing MCU enabled LED Probe disabled LED Indicates the status of the touch probe signal LED off Normal operational mode LED lit red Probe disabled MCU enabled LED Indicates the operational status of the MCU For the MCU1 and MCU5 this LED has two states LED off MCU not enabled LED lit green MCU enabled NOTE The LED is not illuminated until the joystick is live so if the setting of the Joystick file C TEMP hhCOD2 htm 02 01 2013 MCU1 MCUlite 2 and MCUS user s guide Page 18 of 31 enable function is that this button has to be operated the LED will not illuminate until this is done For the MCUlite 2 this LED has 5 states as described below LE
9. D off System not switched on or MCUlite 2 not connected LED lit red System in automatic mode joystick not enabled LED lit amber System in manual mode but joystick not enabled LED lit green Joystick enabled LED lit red flashing Speed override set below 10 in automatic mode If both the MCU enabled LED and Probe disabled LED are flashing MCU enabled LED flashing between red and green Probe disabled LED flashing red on off this indicates there is a scale failure on one of the CMM axes Joystick enable button On the MCU1 and MCU5 the Joystick enable is a single button On MCU lite 2 there are 4 buttons to enable Slow speed on each side left and right handed use and to enable Fast speed on each side as well The Joystick enable button is intended to be used as a deadman s handle preventing the accidental movement of the machine If enabled two actions are required to initiate CMM motion press Joystick enable button and operate the joystick Joystick and associated button function All three axis movements are controlled from the one joystick Moving the joystick left right backwards and forwards controls the CMM X and Y movements The Z axis is controlled by twisting the joystick clockwise and anti clockwise configurable If a trigger event occurs during joystick operation the CMM will stop and back away from the surface along the vector that it w
10. MCU1 MCUlite 2 and MCUS user s guide Page 1 of 31 MCU1 MCUlite 2 and MCU5 user s guide Part Number H 1000 5067 08 A file C TEMP hhCOD2 htm 02 01 2013 MCU1 MCUlite 2 and MCUS user s guide Page 2 of 31 Disclaimer amp trademarks 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 RENISHAW HAS MADE CONSIDERABLE EFFORTS TO ENSURE THE CONTENT OF THIS DOCUMENT IS CORRECT AT THE DATE OF PUBLICATION BUT MAKES NO WARRANTIES OR REPRESENTATIONS REGARDING THE CONTENT RENISHAW EXCLUDES LIABILITY HOWSOEVER ARISING FOR ANY INACCURACIES IN THIS DOCUMENT Trademarks RENISHAW REVO 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 2003 2011 Renishaw plc All rights reserved Renishaw part no H 1000 5067 08 A Issued 01 2011 file C TEMP hhCOD2 htm 02 01 2013 MCU1 MCUlite 2 and MCUS user s guide Page 3 of 31 FCC Information to user 47CFR 2001 part 15 19 This device complies with Part 15
11. as travelling After the back off operation it is necessary for the joystick to return to its null position for a set period of time before the joystick will permit movement of the CMM The default value is 0 05 seconds The back off speeds and distances are defined by the UCC configuration settings When in head mode operation of the joystick can move the axis of the head Pushing the joystick forwards and backwards will operate the A axis and twisting the joystick will operate the B axis For the MCU1 and MCUS when in rotary table mode the W axis of the table is controlled by the twisting of the joystick These values and configuration settings will have been set by your CMM service provider Joystick axis locks buttons Permit the locking of one or more axes of the CMM ignoring any joystick deflections for that axis On each of the axis lock buttons there is a LED indicator that will light red when the respective axis is locked on the MCU1 and MCU5 there will also be a padlock symbol next to the respective axis see file C TEMP hhCOD2 htm 02 01 2013 MCU1 MCUlite 2 and MCUS user s guide Page 19 of 31 figure below These buttons toggle on or off NOTE If an axis lock is released when the joystick is deflected that axis is immediately free to move NOTE On the MCU1 and MCU5 the axis locks will be transposed when operation of the CMM joystick orientation function of the joystick is operated When the MCUlite 2
12. bleJoystickSpeedOverride ia The speed override control is normally enabled when the NOTE The Joystick assembly has deadbands In joystick mode the frist 11 of mechanical movement does not produce motion and full speed is reached at 91 These deadbands are file C TEMP hhCOD2 htm 02 01 2013 MCU1 MCUlite 2 and MCUS user s guide Page 29 of 31 necessary to accomodate electro mechanical tolerences in the joystick assembly these settings are not user configurable Fault finding Examining the MCU LCD display status LED s the system configuration and current conditions can solve many problems NOTE As with most cable connected ancillary equipment it is the actual cable that is the most vulnerable part particularly with a joystick where it can be trapped by the part under inspection pulled if caught by machine motion trodden on run over etc If any malfunction with the MCU occurs the first step should be an examination of the cable Suspect operation of joystick or buttons There is a comprehensive test program for the MCU joystick operation and button function within UCCassist 2 Plese refer to the UCCassist 2 user s guide Renishaw part number H 1000 5224 for details The joystick will not move the CMM Several conditions have to be satisfied before joystick controlled moves can be made e The is connected to the UCC should have been set up in the configuration file e The joystick should be enabled e The MCU
13. g the following may be applicable to the finished machine or installation BS EN ISO 12100 2003 parts 1 and 2 Safety of Machinery Basic Concepts General Principles for Design BS EN 60204 1 2006 Safety of machinery Electrical equipment of machines Part 1 General requirements file C TEMP hhCOD2 htm 02 01 2013 MCU1 MCUlite 2 and MCUS user s guide Page 8 of 31 Safety Environmental requirements Altitude lup to 2000m to 2000 m Operating 10 C to 40 C temperature EA temperature Storage temperature 25 25 C to 70 eee 25 C to 70 eee 70 C Relative humidity 80 maximum non condensing for temperatures up to 31 C Linear decrease to 50 at 40 C Pollution degree Pollution degree 2 NOTE For safety reasons it is recommended that the optional joystick docking station is mounted outside of the working area of the CMM file C TEMP hhC0D2 htm 02 01 2013 MCU1 MCUlite 2 and MCUS user s guide Page 9 of 31 Manual control systems description NOTE Unless otherwise specified all information supplied in this guide applies to the MCU1 MCUlite 2 and the MCU5 MCU1 The manual control unit MCU1 is a comprehensive CMM joystick controller designed for use with Renishaw s universal CMM controller range Including the functionality of both the Renishaw standard UCC joystick interface and Renishaw PHC10 hand control unit HCU1 the MCU1 connects to the UCC controllers as shown
14. hlighted mode title will persist for the time set in the Sticky Button Time Delay parameter CHM Manua cH i t CHM Manual th i If you want to toggle between two specific modes this can set by using the following procedure a Using the MCU mode switch select one of the desired modes then wait until the mode title returns to anormal video display b Next select the other desired mode and again wait for its mode title to return to normal video c The sticky buttons are now set The next time you press the MCU mode button you will return to the original selected mode and provided you do not press the MCU mode button before the title has returned to normal video the next button press will return you to the other selected mode and so on Sticky button mode is not permanent you can still access the other modes If the MCU mode button is pressed before the previous mode title has returned to normal video then the mode becomes unstuck and all the MCU modes can be scrolled through Joystick orientation MCU1 and MCUS only file C TEMP hhCOD2 htm 02 01 2013 MCU1 MCUlite 2 and MCUS user s guide Page 24 of 31 The joystick orientation button changes the relative deflection of the joystick to be transposed to the actual axis of the CMM This allows the user to move freely around any side of the CMM and transpose the joystick orientation such that the machine X and Y axis correspond to joystick direction of deflection If any
15. ill indicate to the application software that the point just taken either a touch point or a position generated by the take point button should be removed from the program The cancelling process can be repeated many times and the front end program will use it to delete multiple stored points NOTE When the take point button is pressed the machine s XYZ position will be recorded and a waypoint is created However if the MCU1 or MCU5 are in Rotary Head or Table mode it only records the relevant index position Function buttons The application software can define the F1 to F4 function buttons on MCUlite only F1 and F2 are available Their status can be read at any time and in any mode These buttons have no effect on the UCC controller as they are solely for the use of the front end software The associated keypad LEDs can also be switched on and off at any time An example of use is that one of the buttons may be used to initiate a circle measurement command when the system is in a manual mode and being used for teach and learn programming Another may be used for a plane measurement etc STOP button MCUS5 only The STOP button only operates when the CMM is in automatic DCC mode It gives the operator the ability to rapidly stop the CMM and REVO head without disengaging When the CMM has stopped the system stays in hold state with both the CMM and REVO head engaged For a REVO system the STOP system is a better way of sto
16. into the emergency stop system System configuration Joystick configuration There are various configuration settings that have to made to ensure the MCU joystick functions to the operators requirements These settings must be made when setting up the UCC controller using the UCCassist 2 Commissioning software They are described in the following table Machine description section Parameter Default value Comment Parameter Default Comment value JoystickMaxFastSpeed 100 This value is the target speed for full joystick deflection mm s with the joystick fast button operated file C TEMP hhCOD2 htm 02 01 2013 MCU1 MCUlite 2 and MCUS user s guide Page 28 of 31 0 used when operating the joystick in fast mode JoystickMaxTouchSpeed 0 mm s This value is the target speed for full joystick deflection in measure mode without the joystick fast button operated JoystickMaxTouchAcceleration 30 This is the maximum acceleration and deceleration value mm s2_ jused when operating the joystick in measure mode 0 2s This controls the time the MCU buzzer operates for a probe trigger event it can be set to zero if the buzzer is not required JoystickMaxFastAcceleration 500 This is the maximum acceleration and deceleration value mm s2 3 ZAxisDirection The standard configuration is for a clockwise rotation of the joystick to cause Z motion This can be inverted if required al InitialMCUOrientation N This parameter se
17. ment type Manual control unit 2 The equipment complies with the protection requirements of directive 89 336 EEC as amended 3 The equipment conforms to the following standards BS EN 61326 1998 Electrical equipment for measurement A1 1998 A2 2001 Control and laboratory use A3 2003 EMC requirements Immunity to annex A industrial locations Emissions to class A non domestic limits BS EN 60204 1 2006 Safety of machinery electrical equipment of machines Part 1 General Requiremenis The full EC declaration of conformity is held in the Renishaw technical file A copy is available on request Renishaw plc declare that the product has been manufactured in conformity with the following standards Electrical equipment for measurement control and laboratory use EMC requirements Part 1 General requirements BS EN 61326 1 2006 Immunity to Table 2 industrial locations Emissions to Class A industrial locations BS EN 60204 1 2006 Safety of machinery electrical equipment of machines Part 1 General Requirements and that it complies with the requirements of the following directives 2004 108 EC Electromagnetic compatibility EMC 2006 95 EC Low voltage file C TEMP hhCOD2 htm 02 01 2013 MCU1 MCUlite 2 and MCUS user s guide Page 5 of 31 The above information is summarised from the full EC Declaration of Conformity A copy is available from Renishaw on request file
18. n f lovsick enabiebuton _________ f6 Fetuncionbuton Probe diseblebuton fofr tuncionbuton E fo Sevoensesebuton LS file C TEMP hhCOD2 htm 02 01 2013 MCU1 MCUlite 2 and MCUS user s guide Page 13 of 31 McCulite 2 features RENISHAW amp P MCU J ite 2 Probe Disabled file C TEMP hhC0D2 htm 02 01 2013 MCU1 MCUlite 2 and MCUS user s guide Page 14 of 31 Fas speed enable oors 10 Fe tncion bution file C TEMP hhCOD2 htm 02 01 2013 MCU1 MCUlite 2 and MCUS user s guide Page 15 of 31 MCUS5 features Probe MCU Disabled Enabled Joystick Enable ma x Ried TAKE POINT 13 F1 FA Fat Fa 14 STOP 15 19 20 17 h LCD screen 17 Start stop program button e Emergency stop h2 Mode change button Speed override Joystick orientation button IE T file C TEMP hhC0D2 htm 02 01 2013 MCU1 MCUlite 2 and MCUS user s guide Page 16 of 31 a Probe disabled LED red 14 Axis system select button f lovsick eroe nmo ffo Fetuncionbuton Probe aisaen fo ennonn E file C TEMP hhC0D2 htm 02 01 2013 MCU1 MCUlite 2 and MCUS user s guide Page 17 of 31 System operation In normal operation the application software will put the CMM in manual mode joystick enabled except when an automatic DCC program is running LCD Not applicable for MCUlite 2 This LCD screen is context
19. of the FCC rules Operation is subject to the following conditions 1 This device may not cause harmful interference 2 This device must accept any interference received including interference that may cause undesired operation Information to user 47CFR 2001 part 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 used in accordance with this installation guide 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 Information to user 47CFR 2001 part 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 file C TEMP hhCOD2 htm 02 01 2013 MCU1 MCUlite 2 and MCUS user s guide Page 4 of 31 EC declaration of conformity RENISHAW plc of New Mills Wotton under Edge Gloucestershire GL12 8JR England declares that 1 We are the manufacturers of the equipment identified by the following particulars Equip
20. ontrols the machine axes in the axis system of the selected stylus i e a twist Z deflection of the joystick produces a movement along the axis of the probe stylus This could be a compound of 2 or 3 machine axes The stylus axis is a secondary part coordinate system applicable only to the MCU joystick and this needs to be updated by the file C TEMP hhCOD2 htm 02 01 2013 MCU1 MCUlite 2 and MCUS user s guide Page 25 of 31 application software to reflect the active stylus axis The axis system in which the MCU is moving the CMM is indicated on the LCD by indicating the axis system that is active by a M P or S and by a tri colour LED mounted below the axis select button Pressing the axis select button will enable the user to scroll through the 3 axis systems To change to the required axis system the axis select button must be pressed and held on the desired axis system This selection is confirmed by pressing the Joystick enable switch Both switches can then be released This complex change procedure prevents unintentional changing of the axis system which could give unexpected machine movement Take point cancel point This button is designed to allow the user to record or cancel chosen machine positions When a program is being generated by the teach and learn method the user will use the take point button to permit the CMM to record a waypoint and use it in the program When using the cancel point button it w
21. pping the system than emergency stop The emergency stop works by removing power from all motors which causes the REVO probe to drop due to gravity file C TEMP hhCOD2 htm 02 01 2013 MCU1 MCUlite 2 and MCUS user s guide Page 26 of 31 Installation Part numbers There are three MCU joysticks available e A 1333 0007 MCU1 e A 5121 0003 MCU5 e A 5331 0015 MCUlite 2 Each of these kit are provided with a 5 metre flexible joystick cable Replacement or longer cables are available from your machine supplier or directly from Renishaw e A 1016 8098 5 m cable e A 1016 8099 10 m cable e A 1016 8100 20 m cable Connecting the MCU to the UCC controller The MCU joystick kits include a 5 metre flexible cable provided as standard The cable is fitted from 9 pin D connector on the rear of MCU to a 9 pin D connector on the rear of the UCC controller Connecting to the UCC2 ucc2 Connecting to the UCClite 2 file C TEMP hhCOD2 htm 02 01 2013 MCU1 MCUlite 2 and MCUS user s guide Page 27 of 31 aS et ee i UCCiite 2 Connecting to the UCCFusion The emergency stop button on the MCU1 MCU ite 2 or MCU5 has a dedicated circuit that is fed directly into the rear of the UCC2 These connectors are then integrated to the CMMs emergency stop system in the SPA2 2 SPAlite or Fusion If non Renishaw servo power amplifiers are used then it is the integrators responsibility to connect the MCU E stop switch
22. t engage e ESTOP not connected correctly e ESTOP still asserted e An outer limit switch is activated No screen display e Check cable connection e Check MCU daughtercard UCC1 only Maintenance With the exception of the connection cable the MCU1 MCU5 MCUlite and MCUlite 2 have no user serviceable parts Should a unit become defective then it should be returned to the nearest Renishaw service centre The MCU may be kept clean by wiping with a clean damp lint free cloth Do not use solvents Replacement connection cables can be purchased through the CMM provider or direct from Renishaw file C TEMP hhCOD2 htm 02 01 2013 MCU1 MCUlite 2 and MCUS user s guide Page 31 of 31 file C TEMP hhCOD2 htm 02 01 2013
23. t the CMM is in manual mode This button is configured as a toggle switch and has an associated LED to indicate the servo status The LED located within the button identifies the various operational states and these are as listed below On the MCU1 and MCU5 a symbol at the top of the LCD screen next to the direction arrow also indicates whether the servos are engaged file C TEMP hhCOD2 htm 02 01 2013 MCU1 MCUlite 2 and MCUS user s guide Page 20 of 31 CMM servos are disengaged MCU1 and MCUS only LED off The CMM servos are disengaged CMM servos engaging LED amber The servos are in the process of engaging CMM servos engaged MCU1 and MCU5 only LED red The servos are engaged but the joystick is not enabled CMM servos engaged and movement is demanded MCU1 and MCUS5 only LED green The servos are engaged and the joystick is enabled and ready REVO damped mode file C TEMP hhCOD2 htm 02 01 2013 MCU1 MCUlite 2 and MCUS user s guide Page 21 of 31 LED amber flashing CMM servos are engaged but REVO head in damped mode When REVO or PH20 are fitted operating the engage switch to disengage the drives puts the REVO or PH20 into heavily damped mode where it will slowly droop due to gravity The CMM axes will disengage as normal Program button MCU1 and MCUS only This button can be used to request the application software to start or stop a DCC program by a system integrator The but
24. ton only gives an event to the application software and is not a state button NOTE It is the system integrator s responsibility to ensure adequate precautions are taken if this switch is utilised If it is considered dangerous for the operator to be in the machine working volume when the DCC program is started then a second confirmation switch operation is required possibly one of the function switches or this switch should not be enabled at all If the button is used to start a program enter auto mode the LCD screen will display AUTO the speed the controller status and an optional text line from the OEM whilst the program is running If the button is used to stop a program enter manual mode the MCU returns to the previous mode selected before going into DCC The LCD screen will then display the normal features for that mode Modes of operation MCU1 and MCUS5 only There are six possible MCU operational modes in addition to the DCC auto mode Pressing the MODE button on the MCU keypad changes the MCU operational mode the current mode is indicated in the top left of the LCD NOTE The modes available to the user of the MCU are configurable If the mode is not required it can be switched off CMM manual mode Default on start up In manual mode the LCD display will show the tip position of the stylus in the current part co ordinate system in either metric or imperial measurements file C TEMP hhCOD2 htm 02
25. ts the initial orientation of the MCU the default setting is that forward movement of the joystick will cause Y motion of a YXZ configured machine E N EnableButtonDelay This setting enables the use of the Joystick Enable button the default setting is enabled if its use is not enabled then the joystick will always be live when the A machine is in manual mode Not Recommended A A EnableButtonOperation A If the use of the Joystick Enable button is enabled this parameter sets the time after the button has been operated that the joystick is enabled for The default setting is 0 i e the button has to be depressed to allow motion NumberOfMCUModes 5 This setting controls the number of MCU modes that can be accessed ModesSequence N A These settings control the mode types and the sequence in which they are displayed NullWaitTime 0 05s lf a limit switch or surface is encountered when under joystick control the system will switch to automatic mode for the backoff the null wait time sets the time the joystick has to be in its null position after the backoff has finished before joystick movement is permitted A machine is in DCC mode this can be disabled using this control RemeasureMode N This parameter switches on and off remeasure mode The default setting is off StickyButtonTime Delay Os This parameter sets the sticky button time delay see section 2 12 6 The default setting is 0 off Ena
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