GH-M Operation Procedures | Sterling 882.00722.00 specification

Chapter 4: Operation

4-1 GH-M Operation Procedures

The system will begin monitoring the process rate once an RPM reading from the Extruder is detected. Again, this RPM must be communicated to the PLC through the supplied inductive proximity switch, or through the optional Ethernet module. The extruder icon on the recipe page will become animated, indicating the extruder is running and the measured Extruder RPM will be displayed. If the system does not automatically start loading upon starting of the extruders then check this value for trouble shooting.

At this point, the controller will refill the weigh hopper to its set weight capacity. The GH-M rate monitor will start tracking the extruder as soon as it is started.

The displayed value may be far from the actual value the first time the system is ran. The GH-M goes through a learning process with each material. This is indicated by a “Steady Process” indicator on the main recipe page. Upon starting the line you should always give the hopper time to analyze the flow and give you a “Steady Process” before making adjustments based on the displayed throughput.

The initial learning process will be complete when the “Steady Process” indicator is displayed on the recipe screen. You are now ready to run the unit as normal. The “Steady” flag indicates that the measured throughput in reliable and can be used for control.

The system will automatically stop loading the hopper upon stopping the extruder. There is no need to manually start/stop a GH-M unit.

Operator Displays

Figure 33a: Typical Operator Screen for GH-M system

It is not necessary to perform any special routine in order to start-up a GH-M Rate Monitor System. Use these easy steps:

1.Start up your extruder

2.Wait until you see the “Steady Process” indication on the screen (or through communications)

3.Observe the “Lbs/hr” or “Kgs/hr” to adjust your extruder to the desired throughput.

Chapter 4: Operation

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Sterling 882.00722.00 manual GH-M Operation Procedures, Operator Displays

Contents

GH-M Rate Monitor Allen-Bradley Controller Write Down Your Serial Numbers Here For Future Reference Unpacking and Inspection Shipping InfoEvent of Shipping Damage If the Shipment is Not Complete Returns Warranty ReturnsCredit Returns Table of Contents Maintenance How to Use This Manual SafetySafety Symbols Used in this Manual Safety Tags and Warning Labels Description Wear Safety Glasses and Work Gloves Follow all Safety Codes General Responsibility ResponsibilityOperator Responsibility Remember Reporting a Safety Defect Maintenance Responsibility Functional Description AccessoriesModels Covered in This Manual General Description Customer Service Mechanical Features Typical Features and ComponentsController Features System Component Description Extruder Inductive Proximity SwitchSurge Hopper Weigh Hopper Open Function Typical GH-M Operator Screen Operator Screens Common to all GH Systems Typical Setup Screens Ethernet Module Optional Components Pneumatic Slide Gate below surge hopper Safety FeaturesLow Level Proximity Sensors Mechanical Installation InstallationMounting Configurations Uncrating the Equipment Machine Mount Electrical Connections Pneumatic Connections Initial Set-up Weigh Hopper InstallationMechanical Set-up Extruder RPM connection Display Startup Screen Final Connections Controller Set-up Recipe Page Start GH Controller Menu Structure Weigh Hopper Load Cell Calibration GH Calibration Display Calibration Menu Screen WTP/RPM Calibration Hopper Size Setup Hauloff Setup and Encoder Calibration Extruder Setup Network Setup Alarm Setup PanelView Configuration Screen Setting Date and Time Operation GH-M Operation ProceduresOperator Displays Typical Operator Screen for GH Full Control system GH Full Control Operation Procedures GH-F Gravimetric Feeder Operation Procedures Typical Manual Control Operator Screen Common Screens Alarms with Descriptions Alarm FlagsPrint Inventory Preventative Maintenance Schedule Maintenance Corrective Maintenance Preventative MaintenanceElectrical Internal Components of the Control Panel Output Signals from Programmable Controller Input Signals to Programmable Controller Introduction Troubleshooting Problem Problem Corrective action Warranty Specifications Warranty and Spare PartsWarranty Restrictions Warranty Liabilities Annex B Information Customer Responsibilities Typical Surge Hopper Assembly Parts List Passwords Addendum Service Supervisor InformationProgrammable Settings Typical Engineering Only Setup Screen Extruder Pulse Count Method Percent of hopper Method DefaultFull Hopper Method WTP/RPM Filter Mechanical Options Screen Max Allowed WTP/RPM Typical Analog Options Analog options screen Diagnostics Screen Password Protection Customer Setup MenuAlarm Log Units Allen-Bradley Communications Manual Below are the items that can be accessed for the GH Hopper Appendix Reload TOO Long Fixed Decimal Explanation Parts Department Service Department Sales DepartmentContract Department