Sterling Plumbing 882 00276.00 Extrusion Constant Standard, Recipe Input Extrusion Constant

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•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 (Standard)

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 Section 3.5).

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:

•Press once.

•The symbol will flash.

•After “1” flashes on the screen, a number in the format xxx.xx will come up on the display.

Digital Dosing Units

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Contents SDD Series Digital Dosing Additive Feeders Table of Contents Introduction Digital Dosing Units Keypad and LED Display ControllerKeys and Symbols Symbols Mounting Quick Start-upUnpacking DD Discs Calibration Number Recipe Setup for Injection MoldingDT Discs Calibration Number DP DiscsCalibration Recipe Setup for ExtrusionDigital Dosing Units Input Number Manufacturer Motor ColorDigital Dosing Units Digital Dosing Units Digital Dosing Units RPM Digital Dosing Units Digital Dosing Units Digital Dosing Units Initial Installation Initial Installation and OperationElectrical Diagram Electrical diagram of connectionsSignal Converter with AC Power Supply Extruder Follower Interface Signal ConverterDiagram of analog inputs Initial Operation Signal Converter with DC Power SupplyVDC Mini Power Supply Recipe Input Injection Molding Injection MoldingStep Step Step Operation Injection Molding Recipe Input Extrusion Constant Extrusion Constant StandardExtrusion Constant, parameter 3 is skipped Step Step Operation Extrusion Constant Recipe Input Extrusion Proportional Extrusion Proportional Extruder Follower OptionStep Step Operation Extrusion Proportional Extruder Follower Option Calibration Determining the Calibration WeightRepeat steps 3 and 4 four 4 more times Digital Dosing Units Recipe Storage Advanced Operations/ Control FunctionsRecipe Storage and Recall Recipe Recall Clearing the Totalizer Acknowledging AlarmsLevel switches probes AlarmsCommunication Protocol Interfaces Maintenance Intervals MaintenanceRemoving the Shear plate DD feeder only Removing the shear plateDismantling the Dosing Station Cleaning the DD Digital Dosing StationInstalling the shear plate Installing the Dosing Station Removing the Dosing Disc Installing the Dosing DiscChanging the Dosing Disc in the DT Digital Dosing Station DD Discs Installing Different Types of Dosing DiscsRemoving / Replacing the Wiper in the DT Dosing Station Cleaning the DT Dosing Station Disc Exchangeable StationsDP Discs Calibration See Appendix D for fuse part numbers Replacing FusesMalfunctions Error Codes Appendix a TroubleshootingGeneral Troubleshooting Unit Will Not Operate Error Codes Recipe Formulas Determining the Software Setup FactorInjection Molding Recipe Limitations for Injection MoldingRecipe Limitations Extrusion ExtrusionMax. input frequency = Hz Appendix B Basic Parameter SettingsExtrusion Mode Example Probe Example Digital Dosing Units Disc Dosing Factor Disc Guide 20 kg/h DT30 204010F Default Calibration # 150 grams/rev One 1 for Granule Disc Dosing Factor TableProcessing Option Hopper Level Probe VirginStarter Calibration Parameters Set-up of Factory Set Operating Parameters Ext = Span factor sf calculated using sf=1000/rpm@10vdc Page Station 1 Digital Dosing Unit Side View TOP View Station 2 Digital Dosing UnitGeneral Wiring Diagram for Bauer Motor Page C150 Controller Injection Dosing Disc/Shear Order Numbers Appendix D Spare Parts ListReplacement Motor Order Numbers Control System Order Numbers Page Technical Assistance Service DepartmentParts Department Sales Department