An example of depanelling process flow chart Previous cell by benbrown

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									1. An example of depanelling process flow chart




                                 Id reading/                    PWB pick-up          PWB              PWB          PWB locking
                  PWB loading                   PWB stopping
  Previous cell                     writing                      from the        transportation   placement to         7.
                      1.                             3.
                                      2.                         conveyor              5.          the milling
                                                                    4.                                place
                                                                                                        6.




                                                PWB pick-up         PWB          PWB leftover         PWB
                    Milling     PWB unlocking    from the                                         placement to   PWB unloading
                                                                transportation     removal                                       Next cell
                      8.             9.         milling place                                     the conveyor        14.
                                                                     11.             12.
                                                      10.                                              13.




2. Some special characteristics of milling process/ depanelling cell:
                     Special units:               Milling unit
                                   Vacuum unit (for dust removal)
                                   Bit store unit (for reserve bits)
                                   Waste material collection unit
                                   Ionizer unit
                                   Etc.
   3. Some interesting pieces of information concerning depanelling process
Categories of information:
             Overall/general performance information:
                           - Units produced
                           - Cycle time
                           - Equipment utilisation
                           - Etc.
             Machine/process specific information:
                           - Maximum bit life variable ( e.g. based on routing distance e.g. [mm] ):
                           - Bit life used variable:
                           - Bit life low variable:

                          -   Maximum spindle life variable ( e.g. based on routing hours e.g. [h] ):
                          -   Spindle life used variable:
                          -   Spindle life low variable:

                          -   Set value of dust removel vacuum: ( e.g. based on vacuum level e.g. [kPa] ):
                          -   Current vacuum level variable:
                          -   Vacuum level low variable:

                          -   Current milling feed rate variable: ( e.g. based on movement speed e.g. [mm/s] ):

                          -   Set value of spindle speed: ( e.g. based on rounds per minute. [rpm] ):
                          -   Current spindle speed variable:
                          -   Spindle speed low variable:

                          -   Ionizer on/off
                          -   Ionizer operation OK
                          -   Etc.
             Alarms/errors:    USE Subsystem ext.messages
                          -   Waste full
                          -   Bit change fail
                          -   No bits in store
                          -   Bit broken
                          -   Bit life low
                          -   Bit life expired
                          -   Vacuum life low
                          -   Vacuum life expired
                          -   Spindle life low
                        -   Spindle life expired
                        -   Spindle overheating
                        -   Ionizer error
                        -   Etc.


   4. Some interesting IPC events/variables/errors in depanelling case
                        Interesting info in this process phase   Interesting info in any process phase   All 2541 events

Phase 1.: PWB loading
            IPC2541
                        Item Transferin                                                                  EquipmentHeartbeat

                                                                              X                          EquipmentChangeState

                                                                              X                          ItemWorkStart
                                                                                                         ItemWorkPause
                                                                                                         ItemWorkResume
                                                                              X                          ItemWorkAbort
                                                                              X                          ItemWorkComplete

                                                                              X                          ItemTransferIn
                                                                              X                          ItemTransferOut
                                                                                                         ItemTransferZone
                                                                                                         ItemTransferLane

                                                                                                         ItemIdentifierRead
                                                                              X                          ItemInformation

                                                                                                         LaneStarved
                                                                                                         LaneUnStarved
                                                                                                         LaneBlocked
                                                                                                         LaneUnBlocked

                                                                              X                          EquipmentStarved
                                                                              X                          EquipmentUnStarved
                                                                              X                          EquipmentBlocked
                                                                              X                          EquipmentUnBlocked
                                              EquipmentInitializationComplete
                                              EquipmentSetupComplete
                                              EquipmentStartSelected
                                              EquipmentSetupSelected
                                              EquipmentDownSelected
                                              EquipmentPowerOff

                                              EquipmentRecipeSelected
                               X              EquipmentRecipeReady
                               X
                                   EquipmentSelectedRecipeModified
                                              EquipmentNonSelectedRecipeMo
                                   dified
                               X              EquipmentParameterModified

                               X              EquipmentAlarm
                                              EquipmentAlarmCleared
                                              EquipmentAlarmsCleared
                               X              EquipmentError
                                              EquipmentErrorCleared
                                              EquipmentErrorsCleared
                               X              EquipmentWarning
                                              EquipmentWarningCleared
                                              EquipmentWarningsCleared
                               X              EquipmentInformation

                                              OperatorInformation
                               X              OperatorActionRegistered
                                              WaitingforOperatorAction


Phase 2.: ID reading/writing
             IPC2541
                           -


Phase 3. PWB stopping
           IPC2541
                          -
Phase 4. PWB pickup
           IPC2541
                         -
Phase5. PWB transportation
          IPC2541
                         -

Phase 6.: PWB placement
            IPC2541
                          -

Phase 7.: PWB locking
            IPC2541
                          -

Phase 8.: PWB milling
            IPC2541/IPC2546FA
                       ItemWorkStart
                       ItemWorkAbort
                       ItemWorkComplete
                       EquipmentInformation/ ItemInformation
                           - Current milling feed rate
                           - Current spindle rpm
                           - Current level of vacuum concerning dust removal
                           - Current Ionizer performance
                           - Etc.
                       Routing program (recipe)

Phase 9.: PWB unlocking
            IPC2541
                          -

Phase 10.: PWB pickup
            IPC2541
                          -

Phase 11.: PWB transportation
            IPC2541
                        -
Phase 12.: PWB leftover removal
            IPC2541
                          -

Phase 13.: PWB placement
            IPC2541
                       -

Phase 14.: PWB unloading
            IPC2541
                        ItemTransferOut

								
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