Sterling BF3-600 specifications Recipe Input Extrusion Constant

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light on the controller during screw recovery. The disc symbol will light when the Digital Dosing unit is dosing material.

The totalizer will increase after each cycle by the amount of material dosed.

To stop the dosing process, press .

While the unit is dosing, the current recipe can be viewed, but not modified by pressing

. The recovery time displayed in the current recipe is the average of the last five shots measured from the molding machine. To change the recipe, the unit must be taken off line by pressing the stop key. The run LED will then go out.

NOTE: See Appendix A, Troubleshooting, for information on problems or errors encountered and their resolution.

3.4 Extrusion Constant

In Extrusion Constant operation, the Digital Dosing unit doses material at a constant rate that does not change with extruder speed. The dosing process begins at the startup of the extruder. How close the actual extruder speed is to the input recipe will determine the accuracy of the blend. If the process requires the additive to be dosed in proportion to the process speed, then the Digital Dosing unit must be configured for Extrusion Proportional operation (go to Sec. 3.5 on page 23).

Recipe Input – Extrusion Constant

To enter a recipe for Extrusion Constant, the following process data is required:

Percentage of additive

Total throughput rate of the extruder during production

Calibration weight in grams

Step 1:

Digital Dosing Units

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Contents SDD Digital Dosing Units Parts and Service Department Table of Contents Introduction Station Digital Dosing UnitI C K A R T G E S V E U E R D E R Controller Touch KeypadKeys and Symbols Symbols Recipe Setup For Injection Molding Quick Start-upUnpacking MountingRecipe Setup For Extrusion CalibrationI C K A R T G E S V E U E R D E R Initial Installation And Operation Initial InstallationElectrical diagram of connections Electrical DiagramDiagram of frequency inputs Initial OperationStep Injection MoldingRecipe Input Injection Molding Step Step Step Operation-Injection Molding Extrusion Constant Recipe Input Extrusion ConstantStep Step Operation -Extrusion Constant Extrusion Proportional Recipe Input Extrusion ProportionalStep Operation -Extrusion Proportional Calibration Determining the Calibration Weight Repeat steps 3 and 4 four 4 more times Digital Dosing Units Recipe Storage Advanced Operations/ Control FunctionsRecipe Storage And Recall Recipe Recall Optional Equipment Acknowledging AlarmsClearing The Totalizer Alarms Level ProbesMixer Euromap E17 InterfaceMaintenance Maintenance IntervalsRemoving the Scraper Removing the scraperDismantling the Dosing Station Cleaning the Digital Dosing Dosing StationInstalling the scraper Installing the Dosing Station Installing the Dosing Disc Removing the Dosing DiscInstalling Different Types of Dosing Discs Removing/Replacing the Scraper in the DT Dosing StationCleaning the DT Dosing Station Exchangeable Stations Replacing FusesSee Appendix D on page 61 for fuse part numbers Malfunctions or Errors Error Codes Appendix a TroubleshootingGeneral Troubleshooting Unit Will Not Operate Error Codes Determining the Software Setup Factor Recipe FormulasInjection Molding ExtrusionRecipe Limitations Extrusion Max. input frequency = Hz Appendix B Basic Parameter SettingsExtrusion Mode Determining the Configuration Value Extrusion Constant or ProportionalProbe Digital Dosing Units Basic Parameter Settings Digital Dosing Units Digital Dosing Units Disc Dosing Factor Disc Guide D30-051725 DT30-102025 DP30 Specification Sheet Disc Dosing Factor TableDigital Dosing unit parameter setup Page Station 1 Digital Dosing Unit Station 2 Digital Dosing Unit Side View TOP ViewDosing Unit Electrical Schematic Chart Appendix D Spare Parts List Dosing Disc/Shear Order NumbersPage Service Department Technical AssistanceParts Department Sales Department