Sterling 882.00722.00 manual Fixed Decimal Explanation

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WRITING SETPOINTS EXPLANATION

Extruder RPM set points, recipe set points, and haul-off set points can be wrote to while the unit is in stop mode. After engaging either RPM mode or Weight mode then the appropriate values will be applied. While in RPM mode the target recipe value will be overwrote by what the current actual running value is. This ensures that when you transfer to “Weight Mode” that the line set points do not change. This acts as a virtual cruise control for your line. Bring the extruder and haul-off up to the desired outputs and then place the unit in “Weight Mode” to maintain the ratio even as the screen pack builds up material over time.

The Extruder RPM set points and haul-off set points can be modified while in RPM mode and the unit will respond immediately.

The Recipe set point can be modified while in Weight mode. Some recipe set points may include the extruder RPM or the haul-off speed depending on the recipe mode selection. If the recipe mode selection is lbs/ft and the second entry is set to extruder rpm input then the target lbs/ft and the extruder rpm is set by the operator while the PLC calculates the target feet/min needed to achieve the desired recipe.

No set points can be modified while in “Monitor Mode”. The PLC will take constant snap shots of the extruder RPM, haul-off speed, and recipe set points and will write these to ensure a “bump-less” transfer when entering into either RPM Mode or Weight Mode.

The system can be placed in “RPM Mode”, or “Monitor Mode” from stop at any time. The system can go from “RPM Mode”, “Weight Mode”, or “Monitor Mode” into stop mode at any time as well. However, there are restrictions when transferring between other modes. The system must be stable before it will allow you to transfer from “RPM Mode” into “Weight Mode”. Also the system must be stable when transferring from “Monitor Mode” to “RPM Mode”. If you are in “Monitor Mode” you must transfer into “RPM Mode” and then stabilize before going into “Weight Mode”.

FIXED DECIMAL EXPLANATION

All weight values and recipe values use fixed decimal. This must be taken into consideration when writing or reading values. If you see “xxx.xxx” above this means the data is in fixed decimal and must be scaled when reading or writing. A decimal is shown next to each item to represent the format.

Chapter 7: Appendix

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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 DamageCredit Returns Warranty ReturnsReturns Table of Contents Maintenance Safety Symbols Used in this Manual SafetyHow to Use This Manual Safety Tags and Warning Labels Description Wear Safety Glasses and Work Gloves Follow all Safety CodesOperator Responsibility ResponsibilityGeneral Responsibility Remember Reporting a Safety Defect Maintenance ResponsibilityGeneral Description AccessoriesFunctional Description Models Covered in This ManualCustomer Service Controller Features Typical Features and ComponentsMechanical Features Surge Hopper Extruder Inductive Proximity SwitchSystem Component Description Weigh Hopper OpenFunction Typical GH-M Operator Screen Operator Screens Common to all GH Systems Typical Setup Screens Ethernet Module Optional ComponentsLow Level Proximity Sensors Safety FeaturesPneumatic Slide Gate below surge hopper 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 TimeOperator Displays GH-M Operation ProceduresOperation Typical Operator Screen for GH Full Control system GH Full Control Operation ProceduresGH-F Gravimetric Feeder Operation Procedures Typical Manual Control Operator Screen Common ScreensPrint Inventory Alarm FlagsAlarms with Descriptions 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 Programmable Settings Addendum Service Supervisor InformationPasswords 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 Contract Department Service Department Sales DepartmentParts Department
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