Sterling 882.00722.00 manual GH-F Gravimetric Feeder Operation Procedures

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is that the extruder speed will be slowly adjusted as the output of the extruder drops over time due to the screen pack becoming clogged.

NOTE: The GH System can be started using your older speed pots by first placing the system into “Monitor Mode”. After you receive a “Steady Process” in “Monitor Mode” you can then transfer to “Step 1” mentioned above. Starting the system in “Monitor Mode” takes longer and requires a double stabilization step.

NOTE: You can always go from any mode to “Stop Mode”

NOTE: You can always go from “Weight Mode” to “RPM Mode”

NOTE: You cannot go from “RPM Mode” back to “Monitor Mode” because the GH does not know where the speed pots are set at. This is a safety and can be bypassed only by placing consulting the factory for details.

4-3 GH-F Gravimetric Feeder Operation Procedures

The system will automatically start loading the hopper after the operator has first placed the GH-F feeder in either “RPM Mode” and enters in a target RPM for the feeder or “Weight Mode” and the system observes an extruder RPM measured by the extruder tracking proximity switch that is mounted on the rear of the extruder. It is important to note that you cannot write the extruder RPM measurement through communications on a GH-F feeding system. You must mount the extruder proximity switch that is shipped with the unit.

Operator Displays

Figure 33c: Typical Operator Screen for GH Full Control system

Follow these steps to run the line:

1.Place the Feeder into either “RPM Mode” (no extruder tracking) or “Weight Mode” (extruder tracking, start extruder first)

2.If in RPM MODE enter in a target RPM for the feeder and the feeder will run at that RPM regardless of the extruder. This is useful for feeder calibration the first time you run the system with a new auger size.

3.If in WEIGHT MODE enter in a desired % and let the system track the extruder RPM. You should not consider you are making good product until you see the “STEADY PROCESS” flag.

4.If in WEIGHT MODE the system will automatically stop once the extruder stops.

Chapter 4: Operation

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Contents GH-M Rate Monitor Allen-Bradley Controller Write Down Your Serial Numbers Here For Future Reference If the Shipment is Not Complete Shipping InfoUnpacking and Inspection Event of Shipping DamageWarranty Returns ReturnsCredit Returns Table of Contents Maintenance Safety How to Use This ManualSafety Symbols Used in this Manual Safety Tags and Warning Labels Description Wear Safety Glasses and Work Gloves Follow all Safety CodesResponsibility General ResponsibilityOperator Responsibility Remember Reporting a Safety Defect Maintenance ResponsibilityGeneral Description AccessoriesFunctional Description Models Covered in This ManualCustomer Service Typical Features and Components Mechanical FeaturesController Features Extruder Inductive Proximity Switch System Component DescriptionSurge Hopper Weigh Hopper OpenFunction Typical GH-M Operator Screen Operator Screens Common to all GH Systems Typical Setup Screens Ethernet Module Optional ComponentsSafety Features Pneumatic Slide Gate below surge hopperLow Level Proximity Sensors Uncrating the Equipment InstallationMechanical Installation Mounting ConfigurationsMachine Mount Electrical ConnectionsPneumatic Connections Extruder RPM connection Weigh Hopper InstallationInitial Set-up Mechanical Set-upDisplay Startup Screen Final ConnectionsController Set-up Recipe Page Start GH Controller Menu StructureWeigh Hopper Load Cell Calibration GH CalibrationDisplay Calibration Menu Screen WTP/RPM Calibration Hopper Size SetupHauloff Setup and Encoder Calibration Extruder SetupNetwork Setup Alarm SetupPanelView Configuration Screen Setting Date and TimeGH-M Operation Procedures OperationOperator Displays Typical Operator Screen for GH Full Control system GH Full Control Operation ProceduresGH-F Gravimetric Feeder Operation Procedures Typical Manual Control Operator Screen Common ScreensAlarm Flags Alarms with DescriptionsPrint Inventory Preventative Maintenance Schedule MaintenanceInternal Components of the Control Panel Preventative MaintenanceCorrective Maintenance ElectricalOutput Signals from Programmable Controller Input Signals to Programmable ControllerIntroduction TroubleshootingProblem Problem Corrective actionWarranty Liabilities Warranty and Spare PartsWarranty Specifications Warranty RestrictionsAnnex B Information Customer ResponsibilitiesTypical Surge Hopper Assembly Parts List Addendum Service Supervisor Information PasswordsProgrammable Settings Typical Engineering Only Setup Screen WTP/RPM Filter Percent of hopper Method DefaultExtruder Pulse Count Method Full Hopper MethodMechanical Options Screen Max Allowed WTP/RPMTypical Analog Options Analog options screen Diagnostics ScreenUnits Customer Setup MenuPassword Protection Alarm LogAllen-Bradley Communications Manual Below are the items that can be accessed for the GH HopperAppendix Reload TOO Long Fixed Decimal Explanation Service Department Sales Department Parts DepartmentContract Department