Sterling Plumbing 882 00276.00 - page 57

Digital Dosing Units 57

Extrusion

For extrusion applications compute the dosing disc speed using the following formula.

Recipe limitations are listed in the table following the recipe.

Disc RPM ( Additive - %) x (Total Extruder Throughput - lb / hr)

13.22 x (Disc Calibration Weight - g)

=

Recipe Limitations Extrusion

Motor Assembly Speed (RPM) Maximum

Speed (RPM)

11.5 11.5

35.5 35.5

Contents

Main SDD Series Digital Dosing Additive Feeders Table of Contents Section 1: Introduction Page 1.1 Controller 1.2 Keys and Symbols Symbols Section 2: Quick Start-up Page Page Page Page Page Page Page Page Page Page Page Section 3: Initial Installation and Operation 3.1 Initial Installation Page Extruder Follower Interface Signal Converter 3.2 Initial Operation 3.3 Injection Molding Page Page Page Operation - Injection Molding 3.4 Extrusion Constant (Standard) Recipe Input Extrusion - Constant Extrusion Constant, parameter 3 is skipped. Page Page Operation Extrusion - Constant 3.5 Extrusion Proportional (Extruder Follower Option) Recipe Input Extrusion Proportional Page Page Operation Extrusion Proportional (Extruder Follower Option) 3.6 Calibration Determining the Calibration Weight Page Page Section 4: Advanced Operations/ Control Functions 4.1 Recipe Storage and Recall Recipe Storage Recipe Recall 4.2 Clearing the Totalizer 4.3 Acknowledging Alarms 4.4 Optional Equipment, Level Switches and Communications Options Alarms Level switches (probes) Page Section 5: Maintenance 5.1 Maintenance Intervals 5.2 Removing the Shear plate (DD feeder only) Removing the shear plate Installing the shear plate 5.3 Cleaning the DD Digital Dosing Station Dismantling the Dosing Station Installing the Dosing Station 5.4 Changing the Dosing Disc in the DT Digital Dosing Station Removing the Dosing Disc Installing the Dosing Disc Installing Different Types of Dosing Discs 5.5 Removing / Replacing the Wiper in the DT Dosing Station 5.6 Cleaning the DT Dosing Station 5.7 Exchangeable Stations 5.8 Replacing Fuses Appendix A: Troubleshooting A.1 General Troubleshooting - Unit Will Not Operate A.2 Malfunctions - Error Codes ERROR CODES A.3 Determining the Software Setup Factor A.4 Recipe Formulas Injection Molding Page Appendix B: Basic Parameter Settings Page Page Page Page Appendix C: Dosing factors, equipment drawings and part numbers Disc Dosing Factor Table 1: Disc Guide Page Page Specification Sheet Digital Dosing unit parameter setup 1-4 for extrusion - contant Digital Dosing unit parameter setup 1-4 for extrusion proportional Set-up of Factory Set Operating Parameters Digital Dosing unit parameter setup 7-14 Page Page Page Page Page Page Page Appendix D: Spare Parts List Dosing Disc/Shear Order Numbers Replacement Motor Order Numbers Control System Order Numbers Page Technical Assistance Parts Department Service Department Sales Department Contract Department