Sterling Plumbing 882 00276.00 specifications Introduction

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Section 1: Introduction

This User’s Manual is intended for use with the Digital Dosing Disc Additive Feeder. The feeder precisely meters and controls the addition of master batches, chemical additives, and regrinds to primary plastics. The Digital Dosing unit can meter both powder and granular material of various sizes. It can be used on extrusion, blow molding and injection molding machines. Depending on the application and throughput, two models are available: Single Station Digital Dosing Unit or Dual Station Digital Dosing Unit. See Figures 1 and 2. This manual covers the operation of both units.

Figure 1. Single Station Digital Dosing Unit

(Shown with optional virgin supply hopper and controller mounting plate)

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 Quick Start-up UnpackingMounting DP Discs Recipe Setup for Injection MoldingDD Discs Calibration Number DT Discs Calibration NumberCalibration 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 connectionsExtruder Follower Interface Signal Converter Diagram of analog inputsSignal Converter with AC Power Supply Signal Converter with DC Power Supply VDC Mini Power SupplyInitial Operation 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 Advanced Operations/ Control Functions Recipe Storage and RecallRecipe Storage Recipe Recall Clearing the Totalizer Acknowledging AlarmsLevel switches probes AlarmsCommunication Protocol Interfaces Removing the shear plate MaintenanceMaintenance Intervals Removing the Shear plate DD feeder onlyCleaning the DD Digital Dosing Station Installing the shear plateDismantling the Dosing Station Installing the Dosing Station Installing the Dosing Disc Changing the Dosing Disc in the DT Digital Dosing StationRemoving the Dosing Disc Installing Different Types of Dosing Discs Removing / Replacing the Wiper in the DT Dosing StationDD Discs Cleaning the DT Dosing Station Exchangeable Stations DP Discs CalibrationDisc See Appendix D for fuse part numbers Replacing FusesAppendix a Troubleshooting General Troubleshooting Unit Will Not OperateMalfunctions Error Codes Error Codes Recipe Limitations for Injection Molding Determining the Software Setup FactorRecipe Formulas Injection MoldingRecipe Limitations Extrusion ExtrusionAppendix B Basic Parameter Settings Extrusion ModeMax. input frequency = Hz Example Probe Example Digital Dosing Units Disc Dosing Factor Disc Guide 20 kg/h DT30 204010F Default Calibration # 150 grams/rev Option Hopper Level Probe Virgin Disc Dosing Factor TableOne 1 for Granule ProcessingStarter 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 Appendix D Spare Parts List Replacement Motor Order NumbersDosing Disc/Shear Order Numbers Control System Order Numbers Page Sales Department Service DepartmentTechnical Assistance Parts Department