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electronica EMS-i EL 400 Series Operational Manual

Digital readout system for machine tool (ball scale interface)
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EL 400
Operational Manual
Digital Readout System
For Machine Tool
(Ball Scale Interface)

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  • Page 1 EL 400 Operational Manual Digital Readout System For Machine Tool (Ball Scale Interface)

  • Page 2: Table Of Contents

    EL 400 DRO Table of Contents INTRODUCTION ....................4 DRO SPECIFICATIONS ..................5 READ BEFORE PROCEEDING ................6 GETTING STARTED ....................7 4.1....................... 7 RONT 4.2......................8 4.3....................9 EYBOARD LAYOUT INSTALLATION ....................12 5.1..................12 OUNTING PTIONS 5.2.
  • Page 3 EL 400 DRO MACHINE SPECIFIC FUNCTIONS ................ 44 9.1..............44 ILLING ACHINE PECIFIC UNCTIONS 9.2..............60 ATHE ACHINE PECIFIC UNCTIONS AUXILIARY FUNCTIONS ..................68 10.1.................. 68 OUCH ROBE UNCTIONS TROUBLESHOOTING ..................74 11.1................... 74 IAGNOSTICS 11.2................

  • Page 4: Introduction

    EL 400 DRO 1. Introduction Congratulations on purchasing EL400 series Digital Readout System (DRO) from EMS-i. The EL400 DRO incorporates the latest state of the art technology; giving you world class features which help in improving productivity, reducing rejection and at the same time giving ease of operation to user with its ergonomic design.

  • Page 5: Dro Specifications

    EL 400 DRO 2. DRO Specifications 90…..265 VAC Mains Supply 50/60 Hz Fuse Rating 800mA Slow Blow 20mm Power Consumption 20 Watts Maximum Storage Temperature -20ºc to 70ºc Operating Temperature 0ºc to 50ºc Relative Humidity 20% To 85% Non-Condensing Dimensions (mm) 155 X 270 X 80 (*excluding earth stud) Height X Width X *Depth...

  • Page 6: Read Before Proceeding

    EL 400 DRO 3. Read Before Proceeding The EL 400 DRO is sophisticated electronic equipment and should be carefully handled to avoid any damage. The rated supply to DRO should be within specified limits and should not be exceeded under any circumstances. Doing so may cause irreversible damage to DRO.

  • Page 7: Getting Started

    EL 400 DRO 4. Getting Started 4.1. Front View Axis Quick Zero Keys Axis Basic Common Machine Specific Numeric Display Keys Operation Operations Operation Keys Keypad Note: In 4 Axes model, press Z followed by Z0 to toggle between When DRO is in 4 axis mode the u LED glows Z and U axis display.

  • Page 8: Rear View

    EL 400 DRO 4.2. Rear View Encoder Manufacturers Power ON Fuse (Spare included) 800mA Inputs label with Serial Switch Slow Blow Number 20mm Equipotential Probe USB B type Power Inlet Auxiliary Point (Ground IEC Connector Connector connector Connectors terminal) (optional) Note: 1.

  • Page 9: Keyboard Layout

    EL 400 DRO 4.3. Keyboard layout Symbols Description Setup ABS / INC Setup and mode keys Inch / mm Reference Preset Numeric Keys Toggle Sign Decimal Entry Enter NUMERIC KEYBOARD Cancel Toggle Keys Navigation Keys P a g e...
  • Page 10 EL 400 DRO Calculator Function Half Function COMMON OPERATIONS SDM Function Function Key Bolt-Hole (PCD) Function Arc Contouring Function MILLING SPECIFIC FUNCTIONS Angle Hole Function Grid Hole Function Tool Offsets Taper Calculation LATHE SPECIFIC FUNCTIONS Summing Function Vectoring Function 10 | P a g e...
  • Page 11 EL 400 DRO Axes keys for Simple and Mill version. Axes Quick Reset keys for Simple and Mill version. AXES KEYS Axes keys for Lathe version. Axes Quick Reset keys for Lathe version. 11 | P a g e...

  • Page 12: Installation

    EL 400 DRO 5. Installation 5.1. Mounting Options Following are the possible options for mounting of EL 400 DRO. Single Arm DRO mount (Code No. 0114-03-0110) Description Qty. Description Qty. Fork arm M10 X 75mm Stud Machine mounting M10 Lock nut Bracket M10 X 60mm Allen M6 X 8mm Allen grub...
  • Page 13 EL 400 DRO Double Arm DRO mount (Code No. 0114-03-0120) Description Qty. Description Qty. Fork arm M10 X 75mm Stud Machine mounting M10 Lock nut Bracket M10 X 60mm Allen M6 X 8mm Allen grub head Screw screw M10 punched washer M6 X 16mm Allen head screw M10 Nylock nut...
  • Page 14 EL 400 DRO DRO Lathe mount stand (Code No. 0114-03-0140) Description Qty. Description Qty. Bar for Lathe stand M10 Lock nut Base plate for Lathe M6 X 8mm Allen Stand grub screw M10 X 20mm CSK M6 X 20mm Allen Allen screw head screw M10 punched washer...
  • Page 15 EL 400 DRO DRO Lathe mount stand with Single ARM (Code No. 0114- 03-0150) Description Qty. Description Qty. Bar for Lathe stand M10 X 75mm Stud Base plate for Lathe M10 lock Nut stand M10 X 20mm CSK M10 Nylock nut Allen screw M6 X 20mm Allen Fork Arm...
  • Page 16 EL 400 DRO DRO Swivel mount (Code No. 0114-03-0130) Description Qty. Description Qty. Fork arm M10 Nylock nut M10 Lock nut M10 X 40mm Full Threaded stud Swivel bracket M10 Nylon spacer M10 X 60mm Allen EL 400 Series DRO head screw Swiveling block Hexagon Bolt M10 X...

  • Page 17: Power Supply

    EL 400 DRO 5.2. Power Supply The EL 400 DRO series uses a Switch mode power supply inside which covers the universal power input range i.e. 90VAC to 265VAC / 50 to 60 Hz. Ensure the input power is within the specifications before powering the unit.

  • Page 18: Power Up

    EL 400 DRO 5.4. Power UP Switch ON the power switch located on the back of the DRO. The DRO will display the power UP message momentarily as shown below  Displays the DRO model  .. Displays the current Software version ...

  • Page 19: Setup

    EL 400 DRO 6. Setup 6.1. Setup Mode Pressing setup key will open Setup menu on DRO Select Axis  With the help of navigation keys you can choose the parameter as shown in table2. With the help of Toggle Keys left / right you can choose the settings of each parameter.

  • Page 20: Parameters Setting

    EL 400 DRO 6.2. Parameters Setting Following parameters are available for setting Display Parameter Setting options   Scale Type ES 10/ EU 10/ EU 5  Display resolution . 0.5/1/2/5/10/20/50 Micron (Linear)  Measurement mode Radial / Diametric  (Linear) ...
  • Page 21 EL 400 DRO Press to Restore default  Reset* settings  OEM mode Password protected OEM mode  Press to exit from setup When you press key once again, you return to the set up  mode. Display shows . Press to exit.

  • Page 22: Error Compensation

    EL 400 DRO 6.3. Error compensation Error compensation is required during DRO installation as there are errors due to ball screw pitch error or deflection & tilting of axes. The error can be also because of measuring system. This error can either be linear or non-linear. These errors can be determined either with the help of reference measuring system or a slip gauge.
  • Page 23 EL 400 DRO Linear Error Compensation Select Linear Error  Compensation (LEC) menu. Press Enter for display  . value menu. Set the machine at datum point (starting point) and press the axis key to reset the axis. Move the axis away from datum point to put the slip gauge at datum point.
  • Page 24 EL 400 DRO Input the reference value of slip gauge in millimeter  (mm) and press Now the DRO shows the  calibration factor. Press Enter read calibration factor. Select the save changes  mode with the help of down arrow key. Confirm with the Enter key.
  • Page 25 EL 400 DRO 6.3.1.2. Segmented Error Compensation (SLEC) Segmented Linear Error Compensation (SLEC) is used when the results of the comparison with a reference standard shows non- linear error. In SLEC the entire axis travel is divided into as many as 99 user defined segments.
  • Page 26 EL 400 DRO 6.3.1.2.1. Auto Mode Select the Calibration menu under setup as per Section 6.3.1.1 then select SLEC option as follows: Set the machine slide   near encoder reference then select SLEC menu. Last digit of axis display ...
  • Page 27 EL 400 DRO Now reach the end of the first segment. . Press the key.  (Input the length of the segment as measured by standard.) Repeat this step for all segments. After completing  segments navigate using key to save changes and press Press key to exit...
  • Page 28 EL 400 DRO 6.3.1.2.2. Edit Mode Edit mode allows user to check and edit the error compensation values for each segment after setting up in Auto mode. Select Segmented Linear Error Compensation (SLEC) menu as Section 6.3.1.2.1. Press key to ...

  • Page 29: Primary Functions

    EL 400 DRO 7. Primary functions 7.1. Absolute / Incremental mode (ABS / INC) key toggles between the Absolute / Incremental position display. Absolute mode displays the positions of all axes from a fixed datum. The Incremental mode displays each position relative to the last position.

  • Page 30: Axis Set

    EL 400 DRO 7.4. Axis Set This function is used to set the axis with a known value. Select axis key. Enter the numeric value to preset selected . axis. Confirm with key. Incorrect numeric entries can be cancelled one by one using Using this in ABS mode will alter the datum of that axis, so it will not be possible restore the old datum.

  • Page 31: Calculator

    EL 400 DRO 7.6. Calculator Press key to select  mathematical functions from the list   shown.          7.6.1. Illustrated Example After selecting desired  operation, enter values and press enter. ...

  • Page 32: Setting Of Reference

    EL 400 DRO 7.7. Setting of reference This function allows user to set a machine zero point. With this machine zero point users can restore the work coordinates even if the machine is moved when the DRO is in OFF condition. To set the datum point mark one permanent line on encoder and reset the axis at that permanent line.
  • Page 33 EL 400 DRO 7.7.1. Reference Point In this function, the absolute Datum is recalled.  Press key and select ‘Home’ mode by pressing Enter key.   Select corresponding axis for referencing. Blinking zero next to selected axis will indicate that DRO is now in HOMING mode.
  • Page 34 EL 400 DRO 7.7.2. Machine Reference function Machine referencing is used when datum is not at the reference mark on encoder but at a fixed distance from reference mark. 7.7.2.1. Setting of Machine Reference Before setting the machine reference, make sure to perform reference point function as discussed in Section 7.7.1.
  • Page 35 EL 400 DRO 7.7.2.2. Recall Machine Reference Select reference mode and  navigate using left / right arrow keys machine reference menu. Confirm with enter key.  Select axis for which machine  reference is to be recalled. Blinking zero next ...

  • Page 36: Secondary Functions

    EL 400 DRO 8. Secondary Functions 8.1. Preset Preset function allows user to set ‘Distance-to-Go’ to reach the next position. Preset function also includes Near Zero Warning function (see Section 8.3). Press key and then  select the axis key. ...

  • Page 37: Sub Datum Memory (Sdm)

    EL 400 DRO 8.2. Sub Datum Memory (SDM) This function allows the DRO to store up to 1000 sub datum points. Each sub datum stores coordinates for all 3 axes (X, Y, and Z). In operation, the datum of the machine is replaced by each sub datum in turn, allowing the operator to work to zero for each sub datum instead of having to constantly refer to printed list of coordinates.
  • Page 38 EL 400 DRO . Select the required axis . and enter the values for the selected step. Press . to confirm value. Press key to go to  next step. With right and left key user can select  previous/next step. To go any step directly after pressing press...
  • Page 39 EL 400 DRO 8.2.2. Learn Mode () Select SDM mode and   navigate to ‘Learn’ menu with left / right arrow key.  Enter the required step number axis  . display. Press Enter to  . confirm. Move the machine to the ....
  • Page 40 EL 400 DRO 8.2.3. Run Mode () After selecting mode Select   program from program  menu with navigation. In run menu display will   show step number one. Enter the required step number by pressing and with numeric values. Press to confirm.

  • Page 41: Near Zero Warning

    EL 400 DRO 8.3. Near Zero Warning EL 400 DRO features a unique Near Zero Warning function which alerts user once the machine position is within 50 microns of the set value. This function is automatically enabled in the following functions: Preset function Sub Datum Memory (SDM) All milling specific functions.

  • Page 42: Center Of Line

    EL 400 DRO Move to first point on circle. . Pressing will store value. .. Repeat this step  remaining points. After storing all three points .. . press display . . . Distance-to-go to center of circle.   8.5.
  • Page 43 EL 400 DRO .. . Move to first point on line. . .. Pressing will store value.   Repeat this step for second point. After storing both points . pressing will display . Distance-to-go to center of line.  43 | P a g e...

  • Page 44: Machine Specific Functions

    EL 400 DRO 9. Machine Specific Functions 9.1. Milling Machine Specific Functions 9.1.1. Circular Bolt Hole Function (PCD) Circular Bolt-Hole function (also known as PCD) allows user to generate a pattern of holes along the perimeter of circle. After Start taking data from user such as co- Point ordinates...
  • Page 45 EL 400 DRO Enter radius of circle.  Enter starting angle this angle is with positive X- axis.  θ Enter total number of holes.  DRO will display the Distance-to-Go the first hole. .. . Traverse X and Y axes until display value are zero.
  • Page 46 EL 400 DRO 9.1.1.2. Additional Options Available Press key to know Distance-to-Go each point. Continue to drill the remaining holes in the same way. Press key to see current hole number Press it again to exit. Press key to  select the specific hole.
  • Page 47 EL 400 DRO 9.1.2. Arc Bolt Hole Function Arc Bolt Hole function is very similar to Circular Bolt Hole function, except in arc hole Start function user can enter the Point starting and ending angle of Radius Center an arc. This angle is always with respect to positive X-axis and is calculated in anti- Point...
  • Page 48 EL 400 DRO Enter starting angle.  Enter ending angle.  Enter total number of holes.  will display .. Distance-to-Go . the first hole. 9.1.2.2. Additional Options Available Press key to cycle through Distance-to-Go each point. Press current hole number Press Up arrow key again to exit.
  • Page 49 EL 400 DRO Press key to jump to specific  hole. Press key to exit this function. 9.1.3. Arc Contouring Function Maximum This function calculates positions points along the line of the Start arc using the required Point parameters. Radius Center Point 9.1.3.1.
  • Page 50 EL 400 DRO Enter radius of arc.  Enter starting angle.  Enter ending angle.  Enter tool diameter.  Select type of cut i.e.   internal cut, external cut or mid cut. Right toggle key will cycle  through all available options.
  • Page 51 EL 400 DRO Enter Maximum cut or  step size. . . will display Distance-to-Go till first . . hole. 9.1.3.2. Additional Options Available Press key to cycle through Distance-to-Go each step. Press key to see current hole number. Press Up arrow key again to exit.
  • Page 52 EL 400 DRO 9.1.4. Angle Hole Function This function calculates position Pitch holes on a line with the help parameters such as starting point, Angle pitch angle of a line Center and no. of holes. 9.1.4.1. Procedure Enter Angle Hole ...
  • Page 53 EL 400 DRO Enter angle of line with positive X axis between two holes.  Enter total number of holes.  will display .. Distance-to-Go till first hole. . 9.1.4.2. Additional Options Available Press key to cycle through Distance- to-Go for each step. Press key to see current...
  • Page 54 EL 400 DRO 9.1.5. Grid Function grid function calculates the locations Y axis of the holes of pattern in XY plane. This pattern can be at a tilt angle from axis. calculations are done Pitch with parameters like starting point θ...
  • Page 55 EL 400 DRO Enter angle of grid with positive X axis between  two holes. Enter total number of  holes for X axis and Y axis.  will display . Distance-to-Go till first hole. . . 9.1.5.1. Additional Options Available Press key to cycle through Distance-...
  • Page 56 EL 400 DRO 9.1.6. Linear Bolt Hole Linear Bolt Hole function Y Axis allows user to create an equality spaced pattern of holes in linear direction. After taking data from user such as axis and pitch, the table of required points X Axis automatically generated and...
  • Page 57 EL 400 DRO  Reset axis by pressing axis key. Enter the required pitch . and press to confirm value. Pressing again will return counting mode Distance-to-go .. will be displayed till first hole. After reaching first hole . . pressing will show...
  • Page 58 EL 400 DRO If user wants to set axis value, it should be perform prior entry in this function. θ Plane Radius (R) Angle ( X - Y X Axis Y Axis X - Z X Axis Z Axis Y - Z Y Axis Z Axis Enter Polar Co-ordinates...
  • Page 59 EL 400 DRO 9.1.8. Axes Summing This function allows displaying the sum Z and U axes. Thus the function is applicable only for 4 axes mill version DRO. Select Axes Summing menu.     Pressing will  . automatically switch ON the axes summing function.

  • Page 60: Lathe Machine Specific Functions

    EL 400 DRO 9.2. Lathe Machine Specific Functions 9.2.1. Tool Offset Tools differ in length as well as diameter, making compensation in slide movement necessary to accommodate the dimensional variation of the tools. This compensation is known as the tool offset. Once the tool offset is established, the slide movement automatically...
  • Page 61 EL 400 DRO Take the slim cut along outside diameter of the part or touch the tool to the surface of the part (if cylindrical) Move the tool away from the part without disturbing X-axis and measure the Diameter of the part. Press X axis key and enter ....
  • Page 62 EL 400 DRO Follow above procedure . for setting tool offset for the remaining tools. . 9.2.1.2. Tool Offset Run Mode Enter tool offset mode   and press Right arrow key to select Run mode. Press Enter  confirm the mode. ...
  • Page 63 EL 400 DRO 9.2.1.3. Additional Options available in Run Mode In tools Run Mode menu, left and right arrow keys can be used to select different tool offsets. Press current tool number Press Enter key to exit. In tools Run mode menu ...
  • Page 64 EL 400 DRO 9.2.2. Taper Function Taper function allows user to calculate taper of the job. Measurements carried Taper function are Radius of taper and Angle θ° of taper. Taper axis setting is available in DRO setup menu. This will select where display taper angle.
  • Page 65 EL 400 DRO Following table illustrates Radius and Angle display relation Taper ON axis Radius ( R ) Angle (θ°) X axis Z axis X axis Z axis X axis Z axis Z’ axis X axis Z’ axis 65 | P a g e...
  • Page 66 EL 400 DRO 9.2.3. Axes Addition Function Axes Summing function is used to display combined movement of either X – Z’ Z’ Z’ axes pair or Z – Z’ axes pair. The summing axis pair can be displayed either on X axis or Y axis. Summing pair axis...
  • Page 67 EL 400 DRO 9.2.4. Function Vectoring function is used Z’ for displaying combined movement of either X – Z’ axis pair or Z – Z’ axis Vector pair taking into Angle α consideration angle between Z and Z’ i.e. α. The resulting combined Combined Movement X = X + Z’...

  • Page 68: Auxiliary Functions

    EL 400 DRO Auxiliary Functions 10.1. Touch Probe Functions Touch probe also called as Contact probe is a device which gives a trigger signal when it comes in contact with the work-piece. The EL 400 DRO uses this trigger signal to execute certain functions which helps the operator to set an axis or measure a work-piece.
  • Page 69 EL 400 DRO  Previous delay value is displayed. Enter new delay. value. Probe Diameter and length: Before using the other probe functions make sure that the probe diameter and length are entered. Select Probe  … menu.  Enter Probe configuration menu.
  • Page 70 EL 400 DRO Enter Probe Length. Press key to come to normal counting mode. 10.1.2. Special Probe Functions: Datum Function: The co-ordinates of the datum can be set by probing edges or surfaces and capturing them as datum. Datum by edge: Here the DRO sets the datum at the trigger edge of the work piece.
  • Page 71 EL 400 DRO  Select axis for the Datum.   Toggle between Edge 1 and 2 and execute  function. The DRO receives the trigger pulse form the probe and sets the datum accordingly. (After the trigger pulse the DRO waits for the user to set the axis at the datum point) When the trigger pulse is sensed user can enter the desired co-ordinates of the datum.
  • Page 72 EL 400 DRO Move the probe towards work piece edge 1 till the DRO receives first trigger pulse. Move the probe towards work piece edge 2 till the DRO receives second trigger pulses. Enter the co-ordinates of the midpoint as datum on selected axis. Inside / Outside Measurement: This function is used to measure work piece center and width.
  • Page 73 EL 400 DRO Move the probe towards work piece edge 1 till the DRO receives first trigger pulse. Move the probe towards work piece edge 2 till the DRO receives second trigger pulses. The display shows co- ordinates of the center and width of the work piece on the selected axis.

  • Page 74: Troubleshooting

    EL 400 DRO Troubleshooting 11.1. Self Diagnostics Mode EL 400 DRO features self diagnostics mode which checks for following areas. Memory corruption Display function Keyboard functioning Encoder diagnostics Self diagnostics mode is enabled by pressing during startup message. First it will enter in memory diagnostic mode. ...

  • Page 75: Troubleshooting Guidelines

    EL 400 DRO 11.2. Troubleshooting Guidelines Problem Observed Guidelines  Mains supply should be o L – N : As specified o N – E: < 3Vrms o L – E : As specified No display / Display glows  Check the fuse.

  • Page 76: List Of Display Text

    EL 400 DRO List of Display Text  Version  Select SELECT  ES 10 12.7mm Ball Pitch  EU 10 5mm Ball Pitch  EU 5 5mm Ball Pitch  LINEAR Linear measurement  Display resolution  Radial mode ...
  • Page 77 EL 400 DRO  PROBE Probe function  CENTRE Center function  POLAR Polar coordinates display  Axis Summing Function in Mill  DATUM Datum setting  PROB ED Probe edge option  PROB MD Probe midpoint option  INSIDE inside measurement ...
  • Page 78 EL 400 DRO  Cosine in Calculator  Tan in Calculator  ASIN Sine in Calculator  ACOS Cosine in Calculator  ATAN in Calculator  INF VAL Infinite Value  RAMPASS Memory ok  RAMERR Memory error  PRB DIA Probe Diameter ...

  • Page 79: Dro Models

    EL 400 DRO DRO Models Description Ordering Code No. EL431-S, 1 Axis Simple without Options EL4P-14-0000 EL432-L, 2 Axis Lathe without Options EL4L-24-0000 EL433-L, 3 Axis Lathe without Options EL4L-34-0000 EL432-M, 2 Axis Mill without Options EL4M-24-0000 EL433-M, 3 Axis Mill without Options EL4M-34-0000 EL434-M, 4 Axis Mill without Options EL4M-44-0000...
  • Page 80 EL 400 DRO EMS (International) Limited Brookfield Works : Canal Street : Littleborough, Lancashire, OL15 0HA, England Telephone: +44 (0) 116 279 3035 e-mail: info@ems-i.co.uk : web: www.ems-i.co.uk 80 | P a g e...

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