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EL750

62 |

P a g e

10. Troubleshooting

10.1 Self Diagnostics Mode

EL750 DRO features self diagnostics mode which checks for following areas.

Keyboard functioning

Encoder diagnostics

Probe Function

Self diagnostics mode is enabled by pressing Selection of Diagnostic option in User Setup
Mode.

Keyboard Diagnostic:-

In Keyboard functioning relevant keys will be display with help of

message one by one as per the sequence entered by the user. Respective messge of key

ensures working of the key. Press [

] to exit the diagnostic mode.

Probe Diagnostic:-

Press probe button for probe diagnostic, Probe will touch the surface

after pressing the probe button. Press [

] to exit the diagnostic mode.

Before

After

Summary of Contents for EL 750

Page 1: ...EL 750 Operational Manual Digital Readout System For Machine Tool ...

Page 2: ...HINE REFERENCE 24 6 PRIMARY FUNCTIONS 25 6 1 ABSOLUTE INCREMENTAL MODE ABS INC 25 6 2 INCH METRIC DISPLAY IN MM 25 6 3 AXIS SET RESET 26 6 3 1 Axis Set 26 6 3 2 Axis Reset 26 6 4 HALF FUNCTION 26 6 5 PROBE MEASUREMENT 27 6 6 CALCULATOR 32 6 7 SETTING REFERENCE 33 6 7 1 Homing reference 33 6 7 2 Recalling machine reference 33 7 SECONDARY FUNCTIONS 35 7 1 PRESET 35 7 2 SUB DATUM MEMORY SDM 35 7 3 So...

Page 3: ...52 8 1 12 Axis Summing 52 8 1 13 Zero Approach 52 8 1 14 Shrinkage Factor 53 8 1 15 Tools 54 8 2 LATHE MACHINE SPECIFIC FUNCTIONS 55 8 2 1 Summing 55 8 2 2 Vectoring 56 8 2 3 Taper 57 8 2 4 Tools 57 9 AUXILIARY FUNCTIONS 59 9 1 INPUT 59 9 2 OUTPUT 59 9 3 SERIAL COMMUNICATION 60 10 TROUBLESHOOTING 62 10 1 SELF DIAGNOSTICS MODE 62 11 DRO MODELS 63 ...

Page 4: ...tures of EL750 series DRO are Adaptability to various types of machines old and new simple and complex Ease of installation Soft touch keyboard for improved life and ease of operation 4 axes version with provision of 4 axes display with option of internal summing of two axes Display of dynamic tool position improving productivity and ease of operation Note Please familiarize yourself with the cont...

Page 5: ...to 50ºC Relative Humidity 20 To 85 Non Condensing Mechanical Dimensions mm 192 mm X 290 mm X 76 mm Height X Width X Depth Net Weight Approx1 5 Kg Display 7 Colour TFT Display with LED backlight Connections Encoder Input RS422 Encoder Connector Type 9 Pin D Type Female Encoder Resolution Supported 0 1 0 2 0 5 1 2 5 10 20 50 100 Micron Auxiliary Connectors 15 Pin D Type Female for Auxiliary Output O...

Page 6: ... load or where it can cause danger EL750 DRO is standard compliant with EMC Directive EN61326 Standard 61326 4 2 61326 4 4 61326 4 11 61326 4 5 CISPR 16 1 and 16 2 RoHS compliant Warranty will be considered void if and not limited to Failing to meet manufacturers specified supply conditions Abusive handling Environmental conditions outside of Manufacturers specifications Manipulation tampering of ...

Page 7: ...EL750 7 P a g e 4 Getting Started 4 1 Front View Axis Keys Numeric Keypad Basic Operation DRO Display Soft Keys Arrow Keys ...

Page 8: ...oder Inputs Manufacturers label with Serial Number Power Inlet IEC Connector Equipotential Point Ground terminal Power ON Switch Fuse Spare included 800mA Slow Blow 20mm Probe Connector USB B type connector Auxiliary Connector Optional ...

Page 9: ...ut Symbols Description FUNCTION KEYS ABS INC Inch mm Reference Preset SDM Function Numeric Keys NUMERIC KEYBOARD Toggle Sign Decimal Entry Enter Cancel Navigation Keys Soft key Selection Axis Selection COMMON OPERATIONS LCD standby Key ...

Page 10: ... OFF ON Output configuration Key Input configuration Key Linear encoder mode Angular encoder mode Probe Key Description Height Measurement Corner Measurement Angle measurement Skew Measurement Internal measurement External Measurement Datum Calculator Calculate Diameter Internal diameter External diameter Linear Measurement Step Length Measurement Center English Open Select Exit Function Half ...

Page 11: ... Job delete Linear Compensation Segmented compensation Save Edit Multimode Single Set Reset Setup Select Zero Probe measurement Key Description Next arrow Next hole Apply the tool Exit from tool Plane selection No Yes Plane Selection Position ...

Page 12: ...re proper equipotential point Ground connection is provided to the DRO to avoid any erratic operations 4 6 Encoder Connections Note 1 ABS is Reference Mark 2 Ensure proper shielding of the encoder cables for proper functioning of the encoder and the DRO Encoder Cable should be properly routed as per manufacturer s guidelines Cable should not be routed near any inductive loads to avoid electrical n...

Page 13: ...ower 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 Owing to continuous Research Development software version may be different than displayed ...

Page 14: ...a g e 4 8 Screen Layout Sample screen of EL750 DRO Labels description is as below Labels Description 1 Feed rate 2 Tool No 3 ABS Inc mode 4 Inch MM 5 Axis Label 6 Display Area 7 Soft key notification 1 2 3 4 5 6 7 ...

Page 15: ... below Press or key to access the setup Different menus can be navigated using keys Options for each field to be selected are displayed at the SOFT Key labels A particular option can be selected using the SOFT key Note In this manual following notations will be used name denotes a dedicated key name name denotes a Soft key name ...

Page 16: ...tputs 10 Machine Model User can select Mill or Lathe machine functionality as per application requirement 11 Save Exit To save the changes and exit from setup 12 Exit without saving Exit from setup without saving changes 5 2 Axis Specific Settings Linear Type 1 Scale Resolution This option is available for all axes if configured as linear type The options available are 0 1 µm 0 2 µm 0 5 µm 1 µm 2 ...

Page 17: ...calibrated for Linear Errors or Segmented errors as applicable The detailed procedure for calibration is explained in section 5 4 8 Apply Compensation The type of compensation applied to selected axis is programmed here Three options are possible NONE LEC and SLEC The default compensation type is set NONE 9 Soft Limit Settings It is used to indicate end point of machine slide Soft limit can be tur...

Page 18: ...external mode the DRO senses an external input Input 4 first and then references the DRO on encoder internal reference mark This mode can be used where sometimes one machine rotation corresponds to more encoder rotations due to gear coupling The default is set to internal Note External Reference is available only for options DRO 4 Axis Direction This defines the counting direction of the encoder c...

Page 19: ...The default value is 0 00 00 11 Vibration Filter In some applications because of vibration or unstable scale the values of the display could become unstable and unreadable For example in grinding application because of the grinding machine vibration the values of the DRO display can become unstable It disturbs the user So this vibration filter function will help the operator to read the position c...

Page 20: ...ensation LEC Linear error compensation can be applied if the results of the comparison with a reference standard show a linear deviation over the whole measuring length In this case the error can be compensated by the calculation of a single correction factor Procedure Scroll to SELECT AXIS in user setup mode select the required axis to calibrate using X Y Z U soft keys Following screen will be di...

Page 21: ... Zero the display value by pressing 3 Move a known distance use a laser interferometer slip gauge or standard 4 Move the axis to touch the slip gauge Select Slip Value and enter this known distance using the numeric keypad 5 Select Cal Factor and press 6 Press Save Exit to save the values 7 Apply compensation 8 Save exit the menu ...

Page 22: ...near error In SLEC the entire axis travel is divided into as many as 25 user defined segments The error in each segment is compensated with a single correction factor Each correction point is measured with respect to the starting point This starting point is usually set close to the end of the scale This starting point can coincide with the absolute datum point Procedure Scroll to SELECT AXIS in u...

Page 23: ... segments 3 Enter into standard measurement mode DRO mode 4 Note down all the standard values and the observed values for each segment 5 Enter the setup mode and select for the respective axis 6 Start entering the Slip values and observed values one by one 7 Press to move to the next segment Repeat the procedure for each segment 8 Save exit the menu Now the Nonlinear error compensation is stored a...

Page 24: ... highlighted The screen displays the message homing Move the slider to the reference point on encoder Mark this reference position for future use 2 Once the reference mark is sensed screen will display Set MC Ref Message 3 Now travel to the desired position on the machine till marked machine reference point is achieved 4 Press the key The axis machine reference is now saved in DRO To use this refe...

Page 25: ...emental mode the user can reset the axis without changing the absolute datum When switched back to Absolute Mode the original datum is intact Note At the beginning of each working session set the datum in Absolute Mode and then switch the DRO to Incremental Mode By using the DRO in this way you can return the machine to its absolute datum at anytime simply by switching back to Absolute Mode 6 2 In...

Page 26: ...6 3 2 Axis Reset This function is used to Zero the axis Press key to switch DRO in reset mode Press the key to be reset When axis Set Reset function is activated in ABS mode it will redefine the datum of the travel and then it is not possible to restore the old datum 6 4 Half Function This function is used to find the center of a work piece by halving the displayed distance on the selected axis Pr...

Page 27: ...Select the required Axis by pressing key o Message windows shows Probe Datum o Probe message window shows Move to datum o The axis display shows c Move the axis to the desired datum point When probe is sensed the datum for the selected axis sets at the probe point d The Operator needs to press to go the basic probe window Following display will be seen Note Whenever Datum or Half function is execu...

Page 28: ...his mode there are different options Operation Select Measure mode Press key to measure height or depth Press key to measure step length Press key to measure external feature Press key to measure internal feature Select the required Axis by pressing relevant key Move to start position and touch Move to end position and touch As per the measurement option the results are shown Press key to return b...

Page 29: ...les Under this there are different options Skew Operation Press key Select key The probe display shows Move to Position 1 Move to the starting position and press The probe display shows Move to Position 2 Move to the next position and press The probe display shows Move to Position 3 Move to the next position and press The probe display shows Move to Position 4 Move to the next position and press ...

Page 30: ...lected axis is displayed on the screen Sample Screens of Angle measurement Corner Angle Operation Press key Select key Select the required axis key Move to start position press The DRO beeps Move to new position press The DRO beeps The result is displayed on the screen ...

Page 31: ... probe display shows Move to Position 2 Move to the next position and press The probe display shows Move to Position 3 Move to the next position and press The result is displayed after probing the third point Sample Screens of Diameter measurement Note For every probe function after displaying the results two more soft keys are enabled Repeat Soft Key This key can be used to execute the current fu...

Page 32: ... small rectangle is for the present number entry The results are displayed when key is pressed This result can be loaded to any axis by pressing the respective axis keys We can perform following functions on calculator a Addition b Subtraction c Multiplication d Division e Percentage f Inverse g Modular division h Trigonometric function sin cos tan sin 1 cos 1 tan 1 Note Maximum 9 characters are a...

Page 33: ...ark DRO will start counting Your reference is now set Note It is highly recommended to mark an indicator on the encoder so as to use the same reference mark while finding the datum point 6 7 2 Recalling machine reference In this function the Machine reference is recalled as set in the user setup Follow the procedure for the Machine reference 1 Press key 2 The soft key menu displays and 3 Select Th...

Page 34: ...red position on the machine till marked machine reference point is achieved 4 Press the key The axis machine reference is now saved in DRO To use this reference as your absolute zero in operations you will have to recall machine reference by pressing key This is very important when you use segmented axis compensation ...

Page 35: ... set to zero on initial entry The values displayed do not affect the axis positions and the axis datum is restored when you exit the Preset mode function 7 2 Sub Datum Memory SDM This function allows the DRO to store upto 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...

Page 36: ...r decided to remove any point go to that point and press key 7 Once you have entered all the Sub Datum points press twice The job is automatically named SDM JOB and then press Editing a job Occasionally you may need to edit a Sub Datum job as specifications change Adding or deleting steps from a sub datum 1 When in normal mode press A list of existing jobs is displayed The numbers on the right ind...

Page 37: ...ting jobs is displayed The numbers on the right indicate that number of Sub Datums for each job 2 Use the navigation keys to select a job 3 Press key The information bar shows SDM It also shows current step total number of steps 4 If you prefer to use Sub Datum in normal display mode instead of graphical mode Press While in normal display mode you can move from point to point using the navigation ...

Page 38: ...e to edit positive limit of machine slide iii Negative Limit It is use to edit negative limit of machine slide iv Save Exit It is use to save the settings v Exit without saving It is use to exit menu without saving When soft limit function is enabled and machine slide reached near soft limit position then AXIS LIMIT message display on particular axis After reaching soft limit indication move machi...

Page 39: ...ranging from 1 to 20 iii Save Exit It is use to save the settings iv Exit without saving It is use to exit menu without saving Note Vibration filter function is also available for Mill Lathe machine model 7 5 Feed rate display In some application it is necessary to monitor feed rate of particular axis to ensure proper operation Feed rate display in top right corner of DRO counting screen as shown ...

Page 40: ...Tools All these functions have following soft keys Sr No Soft Keys Function 1 New Shows the parameter list for the selected function 2 Exit Exits from the Function List 8 1 1 Circular Bolt Hole Function PCD This function is used to calculate the locations of Holes in a circular pattern This is also known as Pitch Circle Diameter PCD The following Parameters are required Co ord 1 of center Co ord 2...

Page 41: ... Hole function is very similar to Circular Bolt Hole function except in arc hole function user can enter the starting and ending angle of an arc This angle is always with respect to positive X axis and is calculated in anti clockwise direction The following Parameters are required Co ord 1 of center Co ord 2 of center Arc radius Starting Angle End Angle No of Holes 0 99 Depth Select Plane X Y Y Z ...

Page 42: ...ual angle and angle is calculated automatically based on number of Holes in Custom Holt Hole user can define angle for each Hole Up to 30 such holes This gives great flexibility where Bolt Holes are spaced non linearly Following Parameters are required Co ord 1 of center Co ord 2 of center Circle radius No of Holes 0 30 Bolt Holes Angles Depth Select Plane X Y Y Z X Z To Enter Bolt Hole Angles Scr...

Page 43: ... g e You can use and keys to move around the holes You can edit the saved parameter by entering in edit menu by pressing key We can jump to particular number of hole by pressing key Press key to exit this function ...

Page 44: ... of Holes 0 99 Depth Sel Plane X Y X Z or Y Z Above parameters are explained in below image When you have entered the above parameters then press key for executing function This opens a counting mode for showing the arrangement of the holes You can use and keys to move around the holes You can edit the saved parameter by entering in edit menu by pressing key We can jump to particular number of hol...

Page 45: ...o of Holes in Axis 2 Max 99 Depth of the Hole Sel Plane X Y X Z or Y Z Above parameters are explained in below image When you have entered the above parameters then press key for executing function This opens a counting mode for showing the arrangement of the holes You can use and keys to move around the holes You can edit the saved parameter by entering in edit menu by pressing key We can jump to...

Page 46: ...2 Angle Pitch Distance in Axis 1 Pitch Distance in Axis 2 Tool Diameter Maximum Cut Machined To Depth Sel Plane X Y X Z or Y Z Above parameters are explained in below image When you have entered the above then press key for executing function This opens a counting mode for showing the arrangement of the holes You can use and keys to move around the holes You can edit the saved parameter by enterin...

Page 47: ...ing Angle End Angle Maximum cut Tool Diameter Machined To Sel Plane X Y X Z or Y Z Above parameters are explained in below image When you have entered the above parameters then press key for executing function This opens a counting mode for showing the arrangement of the holes You can use and keys to move around the holes You can edit the saved parameter by entering in edit menu by pressing key Pr...

Page 48: ...ol Diameter Maximum cut Machined To Depth Sel Plane X Y X Z or Y Z Above parameters are explained in below image There are 8 types of arc as below This function assumes the current tool position as the start point for all the ARC type Depending on the ARC type it decides the other parameters of ARC The following diagram describes the 8 ARC types ...

Page 49: ...u have entered the above parameters then press key for executing function You can use and keys to move around the holes You can edit the saved parameter by entering in edit menu by pressing key Press key to exit this function ...

Page 50: ...ameters are explained in below image When you have entered the above parameters then press key for executing function This opens counting mode for showing the arrangement of the holes You can use and keys to move around the holes You can edit the saved parameter by entering in edit menu by pressing key Press key to exit this function 8 1 10 Slot Slotting is a simple milling function similar to the...

Page 51: ...ns a counting mode for showing the arrangement of the holes You can use and keys to move around the holes You can edit the saved parameter by entering in edit menu by pressing key Press key to exit this function NOTE For All the functions Co ord1 refers to the first axis coordinate and Co ord2 refers to second axis coordinate in the selected plane Axis 1 refers to first axis and Axis 2 refers to s...

Page 52: ...ly the axes are added to form a single compound axes S This option is only visible in case of a 4 axis DRO Following options are available for this mode To access Mill functions go to scroll to summing option Turns this mode ON This will switch the DRO to 3 Axes display and the third axis will show addition of Z axis and U axis Turns this mode OFF This switches the DRO back to the 4 Axes display A...

Page 53: ...dered EL750 has a facility to enter this shrinkage factor Once this function is enabled the axis readings are multiplied by this factor to compensate the material Shrinkage Follow the steps to apply shrinkage factor Navigate to Shrinkage Factor in Mill functions Select to enter shrinkage factor value using keypad Select to apply the shrinkage factor Press to save the changes ...

Page 54: ... appears next to the tool name and tool number display at top side TOOL 2 5 means total 5 tool are present and 2 is currently selected tool Exits from the tool list to the main screen Deletes the selected tool from the list You are prompted to confirm this before the tool is deleted By using this last tool will be deleted Edits the tool parameters under the selected tool Creating a new tool Press ...

Page 55: ...le on Tool offset function Press key and key Tools 8 2 1 Summing Axes Summing function is used to display combined movement of either X Z axes pair or Z Z axes pair The summing axis pair can be displayed either on X axis or Z axis Summing pair axis configuration setting is available in menu To access Lathe functions go to scroll to summing press key This will show selection of axis You can select ...

Page 56: ...hen you apply the function Vect is shown below the axis legends to show the vectoring angle The DRO switches back to normal counting mode and the X and Z axes show the combined vectored position You can perform other functions on these new vectored positions Turns the function off Changes the vector angle if required Sets the changes done and exits to the main screen Exits from the vector angle sc...

Page 57: ...eters such as Diameter Length These parameters can then be referred to in different machining functions such as Arc contouring and Grid When you press key the DRO shows the list of previously saved tools It has the following soft keys creates a new tool setup Maximum 99 new tools can be created The Data Entry screen is displayed so you can enter a tool name A maximum of 16 characters is allowed fo...

Page 58: ...s key to apply the parameters of this new tool and save the tool settings against the tool name Editing a tool Here you can edit an existing tool or view its settings Press key to open the saved tool Enter the desired parameter values Select the parameter that you want to set using the navigation keys Enter the required value using the numeric keys Press key to apply the parameters of this tool an...

Page 59: ... by selecting key or press key 9 2 Output There are two modes in which the output can be configured You can Set output by selecting soft keys To configure inputs Scroll to Auxiliary settings in User setup Select from soft key Single Axis Operation In this mode all outputs are used by the positions set for a selected axis So in Single axis operation any one axis can be configured for this operation...

Page 60: ...ing table shows the pin connection for Auxiliary operation 9 3 Serial Communication EL750 allows two modes of serial communication continuous mode and on request transfer Following diagram shows RS232 communication port 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Pin Number Output Signal 1 Input 1 2 Input 3 3 NC 4 External Supply 5 Output 1 6 Output 3 7 GND 8 RXD 9 Input 2 10 Input 4 11 Shield 12 External...

Page 61: ...n mode OFF Continuous Key press Transmission Interval sec 0 1 0 2 0 5 1 2 3 4 5 6 8 10 Continuous mode In continuous mode the current displayed counts are transmitted to PC and can be viewed on Terminal Software Transmission interval for continuous mode is programmable and following options are available 0 1 0 2 0 5 1 2 3 4 5 6 8 10 seconds Request mode In this mode DRO will transfer current count...

Page 62: ...ection of Diagnostic option in User Setup Mode Keyboard Diagnostic In Keyboard functioning relevant keys will be display with help of message one by one as per the sequence entered by the user Respective messge of key ensures working of the key Press to exit the diagnostic mode Probe Diagnostic Press probe button for probe diagnostic Probe will touch the surface after pressing the probe button Pre...

Page 63: ...s to exit the diagnostic mode 11 DRO Models Product Description Product Code Number of axis Interface Machine Model Options 2 3 4 RS422 Mill Lathe RS232 6 O P PROBE EL752 C EL6C 21 1000 EL753 C EL6C 31 1000 EL754 C EL6C 41 1000 EL762 C EL6C 21 1110 EL763 C EL6C 31 1110 EL764 C EL6C 41 1110 ...

Page 64: ...ge without notice Office and factory Electronica Mechatronic Systems I Pvt Ltd Unit No 37 44 Electronic Co operative Estate Pune Satara road Pune 411009 Maharashtra India Phone 91 020 2422 4440 2422 9398 Fax 91 020 2422 1881 Email enquiry electronicaems com Web www electronicaems com ...

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