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User Manual - Accurate Technology, Inc.

1. La a os ds E i s 7 E 187 Dia N 2s in for da See 6 35 Figure A 6 950 406 amp 950 407 Guide Clip Figure A 7 950 404 amp 950 405 Flex Link Mitutoyo America Corp ProScale Series 950 DRO 29 of 35 Cover lt 4 45 Attaching 1 5 113 0 Screws 38 1 D Be 12 7 i a 3 1 78 7 F 34 ON OFF MODE 10 8 6 SPC Output O DI 16 2 95 J0 9Uu0 du prayperg gt I 55 39 4 Modular _ Mimi A Connector This Side gan Es ME 18 4 57 Dia Knockout Holes lt 3 44 gt lt 52 4 Places 87 4 13 2 for Display Mounting Figure A 8 Digital Monitor Mitutoyo America Corp ProScale Series 950 DRO 30 of 35 SECTION 6 ACCESSORIES ProMUX 3 The ProMux 3 is an easy to use hardware interface device providing communication and control of one to three ProScale ABS linear encoders from a user provided PC or PLC Supplied are two separate components First is the ProMux 3 interface unit and second is a low voltage plug in power supply The user must provide the host PC or PLC and a standard DB 9 serial cable male to female Uses for the ProMux 3 include axis position measurement on XY or XYZ quality control measurement tables machinery position control NON CNC tooling m
2. Mitutoyo America Corp ProScale Series 950 DRO 24 of 35 Error Codes amp Factory Service ProScale warns if an error occurs by displaying Err plus a number on the display If error code 0 1 2 3 5 6 7 or 8 is displayed 1 Check to be sure the readhead is on the scale 2 Check all connections and cable for damage 3 If the readhead is on the scale and all connections are good unplug the readhead from the display wait 3 seconds and reinstall it If error code 4 is displayed the display is trying to display fractions over 99 63 64 Switch to a decimal readout or press ZERO and recalibrate if this value is incorrect For further assistance contact your supplier or Mitutoyo America When calling for factory service please have as much information about your product on hand If possible please have the following information 1 Product name 2 Any modification to the product 3 The date of product purchase 4 Detailed information about the problem such as when where and how the problem occurs and the machinery being used nearby Communicating With Other Equipment ProScale s electrical interface allows the read head position to be read by a computer or other instrument Refer to the electrical diagrams in Figures 5 2 through 5 7 Read Head Output m Decimal Point di d2 d3 dA d5 d6 d7 d8 d9 d10 d11 d12 d13 MSD LSD Al 1111 Measurement Unit E 3 Sign da 0000 mm
3. Incremental INC Mode While in the INC mode the INC symbol is shown in the upper left corner of the display When the INC mode is initially entered the displayed position will change to reflect a new reference point from the current position of the readhead This is typically a position of O but may be changed by using the or keys to provide a distance offset This offset may be used to compensate for the kerf of a saw or other requirements Moving the readhead in either direction will display the distance moved from the initial starting point To complete another incremental measurement from the new current position momentarily press the ABS INC key The display will again change to either 0 or the previously programmed offset To return to the ABS mode press and hold the ABS INC key for approximately 3 seconds Offset Adjustment Use the and O keys to change the currently displayed position to a different value The zero key forces the unit to display 0 Momentarily depressing the key increments the current position by one unit 001 or 01mm Momentarily depressing the key decrements the current position by one unit Pressing and holding the or keys will cause the displayed position to change continuously Continued holding of the key will cause the amount of change to increase from 1 unit to 10 units then 100 units etc This allows for quick adjustments over a range of large values Lock Mode The user can
4. Abbe error refers to a linear error caused by the combination of an angular error and a os e se eee oe Pr i i F h 5 O O 40 Arc Sec AEE a u i eS Est 10 0039 ho 10 0000 X axis L EO Probe I I 1 I I Linear La se Encoder 20 End View Sample a Y axis Top View dimensional offset between the sample and the measuring system It is important to understand that the information the encoder is providing is only the position of the readhead on the scale To illustrate this see the figure which shows a linear measuring device The apparent distortion in the measuring device is intentional for this example to show the measuring device with a curvature in its mounting Suppose the curvature in the figure is sufficient to produce an angle of 40 arc seconds If the measuring device moves 10 inches the probe will be found to have moved 10 0039 inches resulting in an error of 0 0039 inches Abbe error could be lessened by moving the measuring system closer to the sample This effectively solves one half of the Abbe error problem offset and leaves only the angular mounting problem to be solved Angular error can best be countered through proper design and placement of the linear scale Sources of angular error include 1 Mounting the linear scale to an imperfectly flat surface 2 Mounting the linear scale to an imperfectly straight surface 3 Curvature of ways
5. ProScale Series 950 DRO 22 of 35 SECTION 5 MISCELLANEOUS Scales Scales used for individual products should never be mixed Try to avoid drilling through the green portion of the scale Any portion of the green that is drilled will not operate Note Shortening 950 404 405 or 950 406 407 scales is not advised Contact MAC for assistance 1 9mm 07 To shorten the incremental scales for an application follow these steps The scale is embedded with stainless steel wires that could be damaged if not cut properly 1 Use a grinder such as a Moto Tool to grind through the wires embedded in the sides of the scale 2 Using a hacksaw cut through the aluminum extrusion 3 Use a file or sanding tool to chamfer the cut end to the specifications shown in the illustration 4 Remove all burrs 5 Test the shortened scale by sliding a readhead on There should not be any binding Readheads Readheads used for individual products should never be mixed Avoid making extension cables If a different cable length is required contact MAC The pressure exerted on the readhead by the guide clip should never cause the circuit board to press against the green strip on the scale as this will quickly wear out both components and void the warranty See the diagram in Section 3 more information about proper guide clip spacing Mitutoyo America Corp ProScale Series 950 DRO hb o A AS x WO Nn Frequently Aske
6. Mitutoyo ProScale Series 950 Warranty Mitutoyo America Corporation Inc MAC warrants this product against defective parts and workmanship for one year commencing from the date of original purchase Upon notification of a defect MAC shall have the option to repair or replace any defective part Such services shall be the customer s sole and exclusive remedy Expenses incidental to repair maintenance or replacement under warranty including those for labor and material shall be borne by MAC Freight or transportation charges to MTI shall be paid by the customer Except as expressly provided in this warranty MAC does not make any warranties in respect to the product either expressed or implied including implied warranties of merchantability or fitness for a particular purpose except as expressly provided in this agreement MAC shall not be liable for any special incidental or consequential damages or for loss damage or expense directly or indirectly arising from the customer s use of or inability to use the equipment either separately or in combination with other equipment or for personal injury or loss or destruction of other property or from any other cause SAFETY WARNING Before installing ProScale products turn off the machine and disconnect it from its power source to avoid injury SAFETY WARNING Revision B P N 800 1024 002 Copyright O 2002 All rights reserved Mitutoyo America Corp ProScale
7. a Check that the scale is properly aligned with the direction of motion of the moving part any error in alignment will be magnified by the digital components and could cause premature failure Adjust the scale alignment if necessary 4 Referring to the figure note these two installation requirements a For accurate measurements the guide clip should be mounted perpendicular to the direction of travel of the readhead b Over the full range of travel the guide clip should exert some pressure on the readhead so the two move as a single unit i Note Failure to use the guide clip will void the warranty Guide Clip Reinstall the readhead if it has been removed from the scale Care should be taken to not damage the readhead s sensitive internal ground fingers Also note the orientation label on the readhead housing Carefully slide the readhead onto the scale checking for the proper orientation Moving part of machine Typical 950 406 Installation Mitutoyo America Corp ProScale Series 950 DRO 13 of 35 Guide Cli Readhead ENI 33 0mm 1 3 950 406 Scale Guide Clip Pressure Spacing 5 Slide the readhead until it meets and engages with the guide clip Check that the guide clip exerts sufficient pressure on the readhead as seen in the figure above 6 Place the cable in a secure position If necessary fasten it with a wire tie or other fastening device Do not leave the cable where it could be
8. lock out the position offset adjustment functions O keys to prevent accidental changes of the current displayed position To activate the lock mode press and hold the On Off key and then momentarily press the Mode key The LOCK symbol on the LCD display will turn on and off with each key operation When the LOCK symbol is displayed the and O keys will not change the displayed position ABS and INC modes have independent lock operations That is to say that the ABS mode can be locked and the INC mode can be unlocked Display Hold Mode The ProScale unit provides a feature that allows the displayed position to be frozen in time while the readhead is moved from its initial position This allows measurements to be captured on the display and held for later viewing regardless of the current readhead position To activate the Hold mode momentarily press the Hold key The HOLD symbol will be shown in the upper left corner of the display The currently displayed position will be frozen from this point To release the hold feature momentarily press the Hold key again Mitutoyo America Corp ProScale Series 950 DRO 19 of 35 Position Monitor Mode The ProScale display has the ability to monitor a preset position to detect position drift caused by machine vibration or other factors To activate the monitoring mode position the readhead to the desired location and momentarily press the MON key The ABS symbol will flash on t
9. of cable For special cable lengths contact MAC BLACK end of scale ABS Readhead ABS Style Pattern ABS Scale Mitutoyo America Corp ProScale Series 950 DRO 6 of 35 Displays Refer to Section 4 Digital Displays for installation programming and operation Replacement Parts General Purpose LCD Display Replaces all previous displays Part Part Number 950 404 Scale only 700 1510 001 950 405 Scale only 700 1518 001 950 406 Scale only 700 2504 001 950 407 Scale only 700 2508 001 950 404 amp 405 Flex link 100 1025 001 950 406 amp 407 Guide clip 100 1026 001 Instruction Manual 800 1024 002 Digital Display 701 1006 001 Read head 701 1003 001 Mitutoyo America Corp ProScale Series 950 DRO 7 of 35 Product Specifications Measuring Range Accuracy Repeatability Display Range Operating Temp Power Temp Coef Max Slew Rate Input Format Output Format Readhead Dimensions US Patents Warranty 950 404 Up to 250mm 10in 950 405 Up to 450mm 18in 950 406 Up to 1200mm Aft 950 407 Up to 2400mm 8ft 165mm m to 20mm max error 2 meters 002in ft to 008in max error 8 feet 01mm or 001 in 9999 99 mm 999 999 cm 394 000 in 99 63 64 in 0 to 51 C 32 to 120 F 2 AA Batteries 25ppm 1 C i e A 06mm over
10. When programming mode is disabled the user cannot access the programming functions via the Mode 0 keys as described in the programming section This provides the user with a method of configuring the display with specific parameters and prevents unauthorized configuration changes Mitutoyo America Corp ProScale Series 950 DRO 21 OF 33 All Jumpers are shown in storage position for best visibility nm nm nn JP2 Future Option Default Position B DO NOT CHANGE JP 1 Selects Absolute or Incremental Technology Center Pin amp A connected Absolute Default Center Pin amp B connected Incremental JP2 DO NOT CHANGE JP 3 NOT USED JP 4 Selects Enables Disables Front Panel Programming Center Pin 8 A connected Programming Enabled Default Center Pin amp B San Programming Disabled rm ne P_i n lt LEE ati e 6 i l AE EEE 7 7 I Changing the Batteries To change the batteries remove the two screws holding the cover to the base of the display housing Carefully pull off the cover Remove the batteries Reinstall new ones noting the proper orientation shown in the battery compartment Replace the cover and tighten the screws Note DO NOT BEND BATTERY CLIPS Mounting the Display There are four small mounting holes in the back of the display which may tapped for M2 or 4 40 screws The display may also be mounted using double sided tape or Velcro Mitutoyo America Corp
11. 12 bit Digital to Analog converter to generate the analog output This provides 4096 discrete steps of resolution over the configured measuring range This can offer a measurement displacement resolution of 001 over a 4 inch range of motion Dimensions 2 75 70mm wide x 3 38 86mm high x 2 27 57 6mm deep Uses 35mm DIN rail mount Power 8 to 24 VDC 100 mA maximum Input Synchronous serial BCD SPC Output 0 to 5 or 0 to 10 VDC 60mA Mitutoyo America Corp ProScale Series 950 DRO 34 of 35 Mitutoyo America Corp ProScale Series 950 DRO 33 0622
12. 2 5m 10 C 450 mm sec 18 inches sec Mitutoyo SPC mm only Mitutoyo SPC mm or inch 2m 10 conductor Mitutoyo 936937 termination See Appendix A 4420754 4879508 4878013 4959615 One year from date of purchase All ProScale products are MADE IN USA Mitutoyo America Corp ProScale Series 950 DRO 8 of 35 SECTION 2 950 404 AND 950 405 ProScale 950 404 and 950 405 General Purpose system with standard measuring ranges of 250mm and 450mm 950 404 405 systems use ABS style scales ABS style readheads and general purpose digital displays Neither the scale nor readhead are compatible with other MAC ProScale incremental systems ProScale is easy to install By following the basics of good installation in this section reliable error free operation is assured Because ProScale can be installed on many different types and brands of equipment all installations will be a little different Therefore it s the responsibility of the installer to choose the bolts screws or other mounting hardware that guarantee proper installation for optimum operation Installation 1 Note the orientation of the readhead on the scale Be sure the arrow on the readhead points towards the BLACK END OF SCALE This orientation is critical for proper operation of ProScale Be sure the mounting location for the readhead and scale will allow this orientation Determine an appropriate mounting location for the system The r
13. 33 Mitutoyo America Corp ProScale Series 950 DRO 3 of 35 SECTION 1 GENERAL INFORMATION Introduction ProScale digital measuring systems are affordable precision electronic devices for making linear measurements with speed and accuracy ProScale consists of a scale a readhead or encoder and a digital display It uses capacitive encoder technology the same technology used in digital calipers ProScale is ideal for most measuring requirements where high lt 10 um accuracy is not needed Because ProScale shows the exact measurement on its display it eliminates the guesswork involved in reading and interpreting tape pointer or shaft encoder scales It is compatible for retrofitting or as original equipment on most machinery and as a result machine setup time can be reduced considerably maximizing throughput on a machine ProScale s measurement mode can be changed to display sixteenths thirty seconds sixty fourths or thousandths of an inch millimeters or centimeters In any mode ProScale is designed to provide and maintain its accuracy for years ProScale is extremely rugged and durable Unlike optical measurement systems the accuracy of capacitive systems is not affected by sawdust or other non conductive contaminants Additionally power consumption is much less than magnetic or optical measurement systems Because ProScale is a solid state electronic device there s very little to wear out The readhead and s
14. Sets the displayed resolution in decimal mode 0 Reduced resolution Inch xxx xx MM xx x 1 Normal resolution Inch xxx xxx MM xx xx 2 Increased resolution Inch only Inch xx xxxx MM xx xx Pr8 Metric Display Mode 0 1 Controls whether the position is displayed in millimeters or centimeters when the metric display mode is selected 0 millimeters 1 centimeters Mitutoyo America Corp ProScale Series 950 DRO 17 of 35 Pr9 Scaling Factor 001 99 999 Applies a scaling factor to the encoder position with the result being displayed as the current position Scaling factor values less than 1 000 result in displayed positions less than the actual position Values greater than 1 000 result in displayed position greater than the actual position Pressing the O key restores the default value of 1 000 No Scaling PrA Drift Tolerance 03 mm 001 inch Defines a tolerance of motion allowed while the ProScale is in Monitor mode This tolerance value is automatically converted to the appropriate units based on the currently selected display units Default 01 in PrB Disable Fractions Inches 0 1 2 0 Allows the display to show all measurement modes decimal inch fractional inch millimeters and centimeters 1 Inhibits the display of fractional inches Only decimal inches and metric units can be displayed 2 Displays Only metric units No inch display of any kind Position Display U
15. damaged or pulled from the readhead If the application requires over twenty feet of cable the display may need to be modified for proper operation Also if the application requires a shorter scale please call Accurate Technology for assistance 7 Plug the readhead into the display See Section 4 regarding mounting and use of different display versions Note If any other mounting method is used observe the following a Do not drill through the green portion of the scale at any point over which the readhead will travel b Do not mount the scale so the mounting hardware interferes with the movement of the readhead Mitutoyo America Corp ProScale Series 950 DRO 14 of 35 Calibration Once installed ProScale can be calibrated easily and quickly Following is an example for calibrating ProScale on a table saw fence Other installations follow the same general procedure 1 Check to be sure installation of all parts is complete all fasteners are secure and the display is plugged in 2 Cut a part using the normal fence operation 3 Measure the length of the part with the most precise measuring tool available i e digital calipers 4 Press the zero key on the ProScale digital display Note If the direction of movement and the direction shown on the digital display are opposite the programming should be changed See Section 4 Digital Displays for more information 5 Press and hold the PLUS key to scroll until the le
16. O 0000 4 8 0001 inch 1 1000 5 Figure 5 2 Data Format 2 Ts gt lt ion di AED ae gt XX Figure 5 3 Timing of CLK and DATA Mitutoyo America Corp ProScale Series 950 DRO 25 of 35 SER OE X DATA CLK 0 0mS lt T lt 93 75ms 110uS lt Ta lt 140uS TYP 122uS 110uS lt T3 lt 140uS TYP 122uS 230uS lt T4 lt 260uS TYP 244uS Figure 5 4 Timing Chart Read Head Power 1 5 v Display CLK To Parallel O Figure 5 5 Typical computer interface Computer must monitor CLK and DATA lines O ESTR lt upto 1 sec REQ l 1 to 85 ms CEK FO rr K35 ms 50 ms A D May be some recovery time after BEQ goes high of about before clocks and data are output when REQ goes low Contains 52 clock pulses for 13 4 bit words Figure 5 6 Request Line Timing Display Monitor Receptacle 1 GND Braid 2 DATA Black 3 CLK Red e e 4 No Connect Green 9 75 3 1 5 REQ White e e e eo 6 7 8 No Connect ne Sr e E 9 VCC 1 5v Orange 10 No Connect Figure 5 7 Connector Pinout Diagram Mitutoyo America Corp ProScale Series 950 DRO 26 of 35 Abbe Error Abbe error is a condition that may not be visible to the human eye but will affect linear measurements Be sure to take precautions when installing ProScale in order to eliminate the possibility for Abbe error
17. Series 990 DRO 2 of 35 Table of Contents SECTION 1 GENERAL INFORMATION is ae 4 IS nenn dena nennen ehren nn He ra ana nee ea kehren 4 Proscale Terminal ay ion reia 4 A E O Renania 5 PROACH NCHS one ee Ta re a 6 DISplayS ee ee ee ee ee 7 acaso PP o ee Tess ee ee 7 PIOQUEL SPEEI ICAU ONE ricotta doit te rare 8 SECTION 2 950 404 AND 950 405 a ee 9 Installation ee ren denne neh Ran hauen an ce naar Here hear en nee daa daa den 9 CL A en ue ae iin 10 Ballbration AA eeneireenehdsee 11 Maintenance proa ati LTE Teen 11 SECTION 3 900 406 AND 950 407 cs ee een ea 12 istallare 12 Cabala 15 Maintenance asili esiti aa 15 SECTION 4 DIEIMALDIEPEAY anne ee ee ria 16 Display POWET Ense 16 Programming Te 1S A o y E een 16 POSITION Display UNITS anta 18 Measuring Modes ee 18 Offset Ad leiment sea a 19 MI NNN ee ee nee era 19 Display Hold Mode 0 E gg ee oe eg 19 Position Monitor Mode dni EEEE EEEn EEEa 20 Segment Offset PT TSU A une iii 20 Sending position to SPC devise anne een 21 A 21 Changing the Bate atera lora ee 22 Nonno Me DEREN cua it ll 22 SECTION 5 MISCELLANEOUS ee ee ee re ee rei ee een ne ide 23 A A A EHE A E 23 Read ads ansehe ikea 23 Frequently Asked QUEStons cea 24 Error Codes amp Factory Service usina ea aeneon 25 Communicating With Other Equipment ssaa idilliaco 25 Ei PI 25 ADDS EMO ade 27 APPENOIX AAPP eee 28 SECTION 6 ACCESSORIES 31 PM bl cala 31 ProMUX 4 ProMUX 8 l LL lea ee ee en 32 PORE PIET
18. ales should be mounted to machinery using the supplied M5 or 10 32 machine screw and Connector Link This Connector Link is specially designed to flex slightly if there is any mechanical binding in the readhead to scale mounting The Connector Link should always be mounted in the same direction as the scale see the diagram Section 2 Warranty is void if the Connector Link is not used All 950 406 amp 407 scales are designed to be mounted on machinery using M4 or 6 32 Flathead screws MAC provides a Guide Clip to attach the readhead to a moving part of a machine see the diagram in Section 3 Warranty is void if the Guide Clip is not used Mitutoyo America Corp ProScale Series 990 DRO 5 of 35 Readheads ABS readheads have BLACK END OF SCALE labels on the cover and the wire exits from the corner of the housing Extreme care must be taken not to damage the six brass fingers inside the readhead housing ABS style readheads used in all 950 Series systems must be mounted on ABS scales with a particular orientation Each readhead has an arrow on the label pointing in the direction of the BLACK END OF SCALE each ABS style scale will have one end painted black This relationship is very important since the readhead will work but produce erratic results if incorrectly installed To insure proper operation be sure the arrow on the readhead is pointing toward the BLACK end of the scale The standard readhead has 2m 10 ft
19. ations will be a little different therefore it s the responsibility of the installer to choose the bolts screws or other mounting hardware that guarantee proper installation for optimum operation Installation 1 Note the orientation of the readhead on the scale Be sure the arrow on the readhead points towards the BLACK END OF SCALE This orientation is critical for proper operation of ProScale Check to be sure the mounting location for the system will allow this orientation 2 Determine an appropriate mounting location for the system The scale should be mounted to a stationary part of the machine The readhead slides along the scale using the supplied guide clip to transfer machine movement to readhead movement The Display should be mounted in a location which allows for easy viewing by the machine operator The location of the parts should also safeguard the cable from possible damage All ProScale wiring should be kept as far away as possible from the machine s wiring and motors Avoid running the readhead wiring parallel to high voltage current wiring or dust collection systems Mitutoyo America Corp ProScale Series 990 DRO 12 of 35 3 Mount the scale using M4 or 6 screws It may be necessary to use washers or spacers to ensure a good mount if the scale is to be mounted on an uneven surface Be sure the screw heads do not protrude above the surface of the extrusion If they do they will interfere with the readhead
20. cale are designed to withstand shop dirt dust and other airborne contaminants and the controls are sealed with a protective cover for long life With normal care ProScale will last for years ProScale Terminology All ProScale systems consist of a SCALE a READHEAD and a digital DISPLAY The SCALE consists of a series of conductive patterns bonded to an aluminum extrusion The READHEAD contains a computer chip which transmits and receives signals to the scale using capacitive coupling The received signal is used by the readhead to calculate it s position to within 0 005mm This position data is then sent to the digital DISPLAY where it can be displayed in millimeters centimeters inches or sent to an external data acquisition device Absolute technology systems use a robust and sophisticated method to measure position resulting in a high immunity to electrical interference and one that does not forget its position when power is removed Mitutoyo America Corp ProScale Series 950 DRO 4 of 35 Scales An absolute ABS system measures its actual position by reading a pattern which is unique at any given location over its length The maximum length of a ProScale absolute pattern is 430mm 16 932 in The pattern must then repeat itself Consider the illustration above to represent a ProScale ABS There are three absolute patterns each pattern is 430mm long joined together end to end Within each pattern the system is totall
21. d Questions Why is there an Err 2 message on the display If the readhead is off the scale or the readhead cable is unplugged from the digital display an Err 2 will appear on the display To clear error 1 Be sure the readhead is on the scale 2 Unplugthe connector from the display for one second 3 Reconnect the readhead cable to the digital display Pressing ZERO PLUS or MINUS keys has no effect or causes the display to change approximately 17 inches The keypad is locked To unlock the keypad momentarily press and release the MODE key while holding down the ON OFF key The battery clips seem to be very loose Is this normal Yes DO NOT attempt to bend these clips or wedge anything between them and the case These clips are designed to expand when the two case halves are screwed together Can mount the scale readhead without the flex link guide clip The flex link and guide clip serve to provide an accurate method of transferring the movement of the moving part to the readhead while also absorbing any stresses that may occur Ifthey are not used the warranty is voided The display reads numbers but they seem to be random Be sure the readhead is oriented correctly on the scale One end of the scale is black Be sure that the arrow on the readhead sticker is pointed in the correct direction The display does not change as the scale readhead moves The display is in the HOLD mode Press amp release the Hold button
22. e The Remote module provides the data acquisition functions It accepts 1 ProScale or Mitutoyo SPC output as input and relays the information via RF link to the Base module The Base module communicates to a host PC via RS 232 operating at 57 600 Baud The system can support up to 32 remote modules up to 100 meters away for each base module Interface Input RF Frequency RF Power Output Data Transmission Power Supply Weight Dimensions Base Module RF 1 Module DB9 Female RS 232 Interface Mitutoyo SPC 916 MHz 916 MHz Odbm 1mW typical Odbm 1mW typical Data packet w security 8 checksum Both 9 VDC plug in supply provided NiMh batteries Wall Plug 5 ounces 22 grams 7 ounces 31 grams 5 3 135mm 3 35 85mm 4 25 108mm 2 60 66mm 1 5 38mm L W H 1 14 29mm L W H Mitutoyo America Corp ProScale Series 950 DRO 33 of 35 PUE AA Accurate WAECO ProScale Analog Interface Unit r A b n Woo Analog Interface Unit The Analog Interface Unit AIU is designed to provide an analog signal output that is proportional to the current position being displayed on a ProScale linear measurement system The interface provides a DC signal range from 0 to 5 volts or 0 to 10 volts depending on configuration This offers a simple integration between a ProScale linear measurement system and a PLC or other process control system The interface incorporates a
23. e Section 4 for more information about how to lock the display 7 Re calibrate if necessary after changing sanding belts or applicable tooling 8 Calibration is not necessary after batteries are changed Maintenance The aluminum scale should be cleaned of debris often This will prevent premature damage to the scale or readhead Should the scale become difficult to move check that it is thoroughly cleaned Find and remove any burrs which may have developed on the aluminum scale Do not use any liquid lubricants on the scale assembly as this may 1 Impede the readhead s ability to operate properly 2 Attract other contaminants to the scale The Digital Display should be cleaned periodically with compressed air to remove any dust on the lens and keys All mounting fasteners should be checked occasionally for tighiness Mitutoyo America Corp ProScale Series 950 DRO iD Of II SECTION 3 950 406 AND 950 407 ProScale 950 406 and 407 General Purpose system with standard measuring ranges of 1 2m and 2 4m 950 406 407 systems use ABS style scales ABS style readheads and general purpose digital displays Neither the scale nor readhead are compatible with other MAC ProScale incremental systems ProScale is easy to install By following the basics of good installation in this section reliable error free operation is assured Because ProScale can be installed on many different types and brands of equipment all install
24. eadhead crossing from one encoder segment to encoder segment In certain situations the crossing from one segment to another may not be detected by the display This may occur if the readhead is disconnected from the display and then moved along the scale to another encoder segment It may also occur if the readhead is moved too quickly between two encoder segments Ifthe encoder segment tracking count is incorrect because of one of the above situations the user can re adjust the display to correct the error This modification is referred to as the Segment Offset Adjustment To add the distance of one encoder segment to the display press and hold the Mode key and then momentarily press the key The displayed position will increase by 16 932 inches Mitutoyo America Corp ProScale Series 950 DRO 20 of 35 To subtract the distance of one encoder segment to the display press and hold the Mode key and then momentarily press the key The displayed position will decrease by 16 932 inches Sending position to SPC device The ProScale display provides an output port that can be used to send position information to a compatible SPC device such as a printer or data acquisition device After connecting the SPC device to the ProScale display the user may initiate the data transmission by momentarily pressing the SEND key This signals the SPC device to acquire the data from the ProScale display The data format and connector style of t
25. eadhead should be mounted to a stationary part of the machine The scale should be mounted to the moving part of the machine with the connector link Be sure to allow sufficient space to accommodate the connector link which is used to mount the scale to the moving part of the machine The Display should be mounted in a location which allows for easy viewing by the machine operator The location of the parts should also safeguard the cable from possible damage All ProScale wiring should be kept as far away as possible from the machine s wiring and motors and dust collection systems Avoid running the readhead wiring parallel to high voltage current wiring Mitutoyo America Corp ProScale Series 950 DRO 9 of 35 3 Mount the readhead using three screws or bolts It may be necessary to use washers or spacers to ensure a good mount ifthe readhead is to be mounted on an uneven surface 4 Check that the scale is properly aligned with the direction of motion of the moving part The connector link will compensate for only a small amount of 4 misalignment The connector link must be mounted in the same direction as the scale as in the figure below Note Failure to use the connector link will void the warranty 5 Mount one end of the connector link to the scale using an M5 or 10 32 screw and the other end to the moving part of the machine Check that both connections are secure inaccurate erratic readings may otherwise occur 6 Plu
26. easurement devices and the like Specifications Encoder Inputs 3 ProScale ABS readheads Serial Interface RS 232 DB 9 connector 8 bit word no parity 1 stop bit No flow control Mitutoyo America Corp ProScale Series 990 DRO 31 of 35 ProMUX 4 ProMUX 8 The ProMUX series of linear encoder multiplexers are designed for OEM and system integrators for use in acquiring setup positional information non CNC on industrial production machinery The multiplexers interface directly with ProScale absolute linear measurement encoders ProMUX 4 8 multiplexers communicate with a host PC or PLC via RS 232 or RS 422 serial interface Various baud rates are supported from 9600 to 115200 Up to 15 multiplexers can be connected to the same communications bus when utilizing the RS 422 serial interface 14 24 VDC power supply operation RS 232 or RS 422 serial interface with multiple baud rates Supports 4 or 8 ProScale linear measurement encoders Provides position update of all eight channels every 100 milliseconds Robust aluminum mounting enclosure 130mm W x 105mm D x 45mm H Positional data preformatted into ASCII strings Programmable data packet checksum operation Mitutoyo America Corp ProScale Series 950 DRO 32 of 35 ProRF Accurate Technology Inc BAT OFF ON i The Pro RFTM system consists of a base module and a remote module that communicate over a bi directional RF interfac
27. g the readhead into the display See Section 4 regarding mounting and use of different display versions Connector Link O _____DISPLAY MOVING PART OF MACHINE 77 CONNECTOR LINK READHEAD MOVEMENT A Typical Model 950 404 Installation Mitutoyo America Corp ProScale Series 950 DRO 10 of 35 Calibration Once installed ProScale can be calibrated easily and quickly Following is an example for calibrating ProScale on an industrial sander Other installations follow the same general procedure 1 Check to be sure installation of all parts is complete all fasteners are secure and the display is plugged in 2 Set the machine to operate as normal Run a part through the sander 3 Measure the thickness of the sanded part with the most precise measuring tool available digital calipers if possible 4 Press the zero key on the ProScale digital display Note If the direction of movement and the direction shown on the digital display are opposite the programming should be changed See Section 4 Digital Displays for more information 5 Press and hold the PLUS key to scroll until the thickness measurement is displayed the longer the PLUS key is held down the faster the display will scroll 6 When the proper reading is reached lock the display if desired This prevents accidentally re zeroing of the display Se
28. he ProScale output is Mitutoyo SPC This industry standard that can be interfaced with most available SPC products including multiplexers RS232 converters and PC plug in boards Data from the ProScale is sent to the SPC connector in either millimeters or decimal inches If no SPC device is attached to the display the SEND key has no other function See Section 6 Accessories for interface data acquisition products descriptions Jumpers Although the ProScale display uses a keyboard programming mode to set features in the unit several selection jumpers are located on the circuit board for special functions JP1 Absolute Incremental Encoder Selection The ProScale General Purpose Display supports both the Accurate Technology incremental and absolute style systems To configure the display for use with absolute type encoders default install the shorting jumper in position A For incremental type encoders older Mitutoyo 950 Series using Incremental Technology install the shorting jumper in position B NOTE This functionality is not related to the Absolute and Incremental measurement modes described earlier JP2 FUTURE FEATURE DO NOT CHANGE JP4 Programming Mode Control Entry to the programming mode of the ProScale display can be enabled or disabled based on this jumper setting To enable keyboard programming default install the shorting jumper in position A To disable keyboard programming install the shorting jumper in position B
29. he display to indicate that the position monitor mode is active Ifthe readhead is moved outside the programmed tolerance programming parameter A the displayed position will also flash indicating a drift condition When the readhead is moved back within the programmed tolerance the displayed position will stop flashing To exit the position monitor mode momentarily press the MON key This can be done regardless of whether the display is indicating a drift condition The ABS symbol will stop flashing and if the position was previously drifted the currently displayed position will also stop flashing NOTE Position monitor mode can only be activated while in the ABS measuring mode If the ABS INC key is depressed while monitoring the position monitoring mode is automatically exited Segment Offset Adjustment ProScale encoder scales that are shorter than 17 inches are designed with an absolute measurement encoder pattern such that the readhead can calculate its position directly from this pattern For encoder scales that are longer than 17 inches multiple encoder pattern segments are installed end to end on the aluminum scale extrusion This provides a pseudo absolute measurement capability in which the readhead can calculate its position on any individual encoder scale segment but cannot determine which encoder segment itis on To solve this problem the ProScale display tracks which encoder scale segment the readhead is on by detecting the r
30. ngth measurement is displayed the longer the PLUS key is held down the faster the display will scroll 6 When the proper reading is reached lock the display if desired This prevents accidentally re zeroing of the display See Section 4 for more information about how to lock the display 7 Re calibrate if necessary after changing saw blades or applicable tooling 8 Calibration is not necessary after batteries are changed Maintenance The aluminum scale should be cleaned of debris often This will prevent premature damage to the scale or readhead Should the readhead assembly become difficult to move check that the scale is thoroughly cleaned Find and remove any burrs which may have developed on the aluminum scale Do not use any liquid lubricants on the scale assembly as this may 1 Impede the readhead s ability to operate properly 2 Attract other contaminants to the scale The Digital Display should be cleaned periodically with compressed air to remove any dust on the lens and keys All mounting fasteners should occasionally be checked for tighiness If there is any wear on the green laminate of the scale the guide clip pressure on the readhead should be reduced If wear continues the readhead bearing should be replaced Call Mitutoyo America for assistance Mitutoyo America Corp ProScale Series 950 DRO 15 of 35 SECTION 4 DIGITAL DISPLAY Display Power Momentarily pressing the On Off key will cause the u
31. nit to turn the display on or off While on if no key presses or positional changes occur for more than 15 minutes the ProScale will automatically turn itself off to conserve battery life While off if a position change is detected or the On Off button is pressed the display will automatically turn itself on Programming The Display To customize the General Purpose Digital Display several functions of the display are user programmable The following instructions describe how to change the system s factory defaults To enter programming mode press and hold the MODE key and momentarily press the 0 key Release the MODE key The display shows the current parameter ID in the format Pr x where x represents the parameter number After approximately 1 second the display will change to show the current value of the parameter Use the or keys to change the value Binary 0 or 1 values can be toggled to opposite values by pressing either the or keys Other values are incremented with the key or decremented with the key Pressing and holding the MODE key will show the currently selected parameter number without moving to the next parameter Releasing the MODE key will again display the parameter value Momentarily pressing the MODE key will move to the next parameter displaying the parameter ID for 1 second and then the parameter value Successive momentary Mitutoyo America Corp ProScale Series 950 DRO 16 of 35 pre
32. nits The ProScale measurement system can display position information in decimal inches fractional inches or millimeters centimeters To change the current display mode momentarily press the Mode key With each key activation the unit will cycle from decimal inches to fractional inches 1 16 1 32 1 64 and then to millimeters centimeters Pressing the Mode key again returns the unit to decimal inches When the display is in a fraction mode each bar in the display s upper right corner represents an additional 1 64th of an inch Measuring Modes The ProScale display has two measurement modes One is referred to as Absolute ABS and the other is Incremental INC The Absolute measurement system is designed to allow the user to set a current position on the display referenced from a fixed position such as a saw blade fence or stop The Incremental measurement system is designed to take distance measurements from one arbitrary point to another Both systems operate independently allowing separate positions offsets to be programmed Absolute ABS Mode The ProScale automatically enters ABS mode when power is first applied This is indicated by the ABS symbol in the upper left corner of the display While in the ABS mode all position measurements are related to the current system reference i e saw fence etc To enter the INC mode momentarily press the ABS INC button Mitutoyo America Corp ProScale Series 950 DRO 18 of 35
33. or linear bearings used to measure the sample 4 Contaminants between the probe and item being measured 5 Friction in any part s of the measuring device Mitutoyo America Corp ProScale Series 950 DRO 27 0 35 Appendix A gt lt 30 7 6 a gt 35 6 35 5 19 05 Tapped for 25 6 35 10 32 MEASURING RANGE MR 10 250 14 25 362 18 450 22 25 565 Figure A 1 950 404 amp 950 405 Countersink Min depth of 6 screw y o 125 3 18 gt lt N ATA MEASURING RANGE MR L L J N 52 1 32 56 1 42 96 2 44 100 2 54 ot Figure A 2 950 406 amp 950 407 O O O O 2 gt LIDI gt lt A gt K 2 Figure A 3 950 406 amp 950 407 Hole Pattern Mitutoyo America Corp ProScale Series 950 DRO 28 of 3 GH 156 Dia ace 41090 K 195 Dia ET en y 23 places 4 95 E AU 15 75 en 795 A Y RI oi a o 11281 79 25 71 37 Y A S f J LY 09 is 2 28 38 1 Figure A 4 Read Head Housing Guide Clip MN AM SM NM TIL Ses Recommended l 835 for proper TAB 21 21 flex li Scale 33 0 Extrusion Figure A 5 950 406 8 950 407 Scale and Housing For 8 fastener 75 2 5 gt DEE 158 1 85 19 05 63 5 40 13 Si 47 0 7 nn 4 7 gt 1 38 9 65
34. sses of the MODE key will quickly migrate down the parameter list without displaying each parameter value When the desired parameter is reached and the MODE key is no longer depressed the parameter value will then be displayed When the end ofthe parameter list is reached the display will loop back to parameter 0 To exit programming mode press and hold the MODE key then momentarily press the 0 key Release the MODE key The following parameters are available for programming Values within reflect the available range of values that can be programmed for an entry Factory defaults are shown in bold PrO Encoder Direction 0 1 Changes the Display readings from Positive to Negative or visa versa Pr1 Enable Disable Long Scales 0 1 0 Model 950 404 Only 1 Segment offsets enabled for scales longer than 430mm Pr2 Enable Disable Offset Change 0 1 0 Disallows Zero and keys to zero reading increment decrement readings 1 Allows Zero and keys to zero reading increment decrement readings Pr3 Aux Keypad Key Enable 0 7 ABS INC Button 1 Monitor Button 2 Hold Button 4 To enable buttons add up combination of button values Store sum in Pr3 A value of 0 disables all three buttons A value of 7 enables all 3 buttons Pr4 Future Enhancement DO NOT CHANGE 0 63 Pr5 Future Enhancement DO NOT CHANGE 0 31 Pr6 Future Enhancement DO NOT CHANGE 0 1 Pr7 Display Resolution 0 1 or 2
35. y absolute However crossing over a pattern joint now presents the readhead with information identical to what it read in the previous pattern At this point the system must be able to recognize that it has crossed over a pattern joint and therefore must add or subtract the value of 1 pattern offset 430mm In fact each time the readhead passes over a pattern joint it must keep track of how many patterns it has passed and in which direction This action is accomplished by the digital display What does all this mean Ifthe readhead remains on the same absolute pattern it can have power removed its position changed and power restored without loss of position information However if power is removed and the readhead passes over a pattern joint the transition will not be recognized When power is restored the system knows its absolute position on the new pattern but does not know how many patterns it has passed or in which direction ProScale displays provide the operator with a method to adjust the pattern offset so the system displays the correct reading at all times without loss of accuracy See Section 4 All ABS scales have a zigzag pattern etched onto the green laminate Take care to not damage this etching or remove the green coating There should also be a pattern break approximately every 430mm 17in Do not attempt to shorten ABS style scales call Accurate Technology 800 233 0580 for assistance All 950 404 8 405 Series sc

User Manual - Accurate Technology, Inc.

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