Sterling 882.00722.00 manual Input Signals to Programmable Controller

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Input Signals to Programmable Controller

The rate monitor system has two main input signals that it uses from the extrusion process: the weigh hopper load cell, and the extruder speed reference. This, of course, does not include the operator touch-screen input.

The extruder speed reference is generated from the supplied inductive proximity switch, or is wrote to the PLC through the optional Ethernet module.

Load cells require +12 volts DC to operate. This is known as the load cell’s excitation voltage.

Output Signals from Programmable Controller

The rate monitoring system uses several output control signals to control the process. All of these are very similar in nature.

The surge hopper refill solenoid is controlled by a PLC output.

Chapter 5: Maintenance

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Contents GH-M Rate Monitor Allen-Bradley Controller Write Down Your Serial Numbers Here For Future Reference Shipping Info Unpacking and InspectionEvent of Shipping Damage If the Shipment is Not CompleteCredit Returns Warranty ReturnsReturns Table of Contents Maintenance Safety Symbols Used in this Manual SafetyHow to Use This Manual Safety Tags and Warning Labels Description Follow all Safety Codes Wear Safety Glasses and Work GlovesOperator Responsibility ResponsibilityGeneral Responsibility Remember Maintenance Responsibility Reporting a Safety DefectAccessories Functional DescriptionModels Covered in This Manual General DescriptionCustomer Service Controller Features Typical Features and ComponentsMechanical Features Surge Hopper Extruder Inductive Proximity SwitchSystem Component Description Open Weigh HopperFunction Typical GH-M Operator Screen Operator Screens Common to all GH Systems Typical Setup Screens Optional Components Ethernet ModuleLow Level Proximity Sensors Safety FeaturesPneumatic Slide Gate below surge hopper Installation Mechanical InstallationMounting Configurations Uncrating the EquipmentElectrical Connections Machine MountPneumatic Connections Weigh Hopper Installation Initial Set-upMechanical Set-up Extruder RPM connectionFinal Connections Display Startup ScreenController Set-up GH Controller Menu Structure Recipe Page StartGH Calibration Weigh Hopper Load Cell CalibrationDisplay Calibration Menu Screen Hopper Size Setup WTP/RPM CalibrationExtruder Setup Hauloff Setup and Encoder CalibrationAlarm Setup Network SetupSetting Date and Time PanelView Configuration ScreenOperator Displays GH-M Operation ProceduresOperation GH Full Control Operation Procedures Typical Operator Screen for GH Full Control systemGH-F Gravimetric Feeder Operation Procedures Common Screens Typical Manual Control Operator Screen Print Inventory Alarm Flags Alarms with Descriptions Maintenance Preventative Maintenance SchedulePreventative Maintenance Corrective MaintenanceElectrical Internal Components of the Control PanelInput Signals to Programmable Controller Output Signals from Programmable ControllerTroubleshooting IntroductionProblem Corrective action ProblemWarranty and Spare Parts Warranty SpecificationsWarranty Restrictions Warranty LiabilitiesCustomer Responsibilities Annex B InformationTypical Surge Hopper Assembly Parts List Programmable Settings Addendum Service Supervisor InformationPasswords Typical Engineering Only Setup Screen Percent of hopper Method Default Extruder Pulse Count MethodFull Hopper Method WTP/RPM FilterMax Allowed WTP/RPM Mechanical Options ScreenDiagnostics Screen Typical Analog Options Analog options screenCustomer Setup Menu Password ProtectionAlarm Log UnitsBelow are the items that can be accessed for the GH Hopper Allen-Bradley Communications ManualAppendix Reload TOO Long Fixed Decimal Explanation Contract Department Service Department Sales DepartmentParts Department