Mitsubishi Electronics 882.00207.00 Weigh Hopper Dump Cycle, Mixer Dump Time, Alarm Flags

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Weigh Hopper Dump Cycle

The dump cycle allows the weigh hopper dump valve to cycle, or open and close, a number of times prior to commencing with the next batch cycle. The setting allows from 1 to 9 dump cycles between batches (open and closed cycles).

The normal and default factory setting is 1, meaning the weigh hopper dump valve will open at the end of the weighed batch and close after the batch is discharged into the mixer.

Setting the dump cycle to more than one cycle may be useful when blending high static, dusty material or those that have sticky tendencies. This will cycle the dump valve open and closed to allow any material that may cling to the dump valve.

To enter the dump cycle menu, first enter the Setup menu by pressing the Manufacturer’s icon from the main menu. Enter the password and press enter. Next, press the button marked “Mixer and Dump Setup”. The display will show the “Mixer and Dump Setup” menu. Press the “Dump Cycle” key to enter a dump cycle value and press enter. Please refer to the menu structure tree shown in section 3-5.

Mixer Dump Time

The mixer dump time is the amount of time the knife gate below mixer’s valve remains open to allow blended material to exit the blender.

To view and change the current mixer dump time settings, enter the Setup menu and select the “Mixer and Dump Setup” screen. Press the field next to “Mixer Dump Time” to set the operation of the Dump Valve.

The dump timer on the dump valve has a default time of six (6) seconds. This time can be adjusted to optimize the blender cycle time.

The timer should be set to close the dump valve shortly after clearing the high-level sensor. This time can vary due to material flow characteristics, and the size of the batch that is programmed into the blender control. Experimentation with this setting can allow the operator to determine the best cycle for the material being mixed.

Alarm Flags

An alarm message will be shown if any alarm condition occurs. A message will pop up on the screen until the alarm condition is resolved. The operator can press “OK” on this pop-up to hide the screen temporarily, but if the alarm condition is still unresolved, then the message will reappear after a short delay. During an alarm condition, not only will a visual alarm show up on the screen but also an audible alarm will sound. The audible alarm will sound for 10 seconds and reappear every 30 seconds until the cause of the alarm is resolved. The following is a list of all alarm names and descriptions:

Hopper 1-6 Out of Material: This alarm indicates that a hopper is out of material and signals the operator that they should check the resin system.

Figure 41: Typical “Out of Material” Alarm Screen

Bulletin Number

Chapter 4: Operation

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Contents Gravimetric Slide Gate Batch Blender Mitsubishi Controller Parts and Service Department Event of Shipping Damage Unpacking and InspectionIf the Shipment is Not Complete If the Shipment is Not CorrectWarranty Returns ReturnsCredit Returns Table of Contents Maintenance Customer Responsibilities Technical Specifications Safety Symbols Used in this Manual How to Use This ManualSafety Tags and Warning Labels Description Wear Safety Glasses and Work Gloves Follow all Safety CodesResponsibility General ResponsibilityOperator Responsibility Remember Reporting a Safety Defect Maintenance ResponsibilityCustomer Service AccessoriesModels Covered in This Manual General DescriptionEquipment Specifications Typical Features and Components Mechanical FeaturesController Features Supply Hoppers System Component DescriptionSlide Gates Weigh Hopper Typical Slide Gate AssemblyTypical Weigh Hopper Assembly Operator Control Panel Display Mix ChamberFunction Typical Operator Screens Typical Setup Screens Bulletin Number Functional Description Pneumatic Slide Gate below Mixer Optional ComponentsLow Level Sensors Mezzanine and Floor StandsRegrind Auger Metering R.A.M. Hopper Additive Feeder HopperTake-off Compartments Safety Circuit Standards Safety FeaturesSafety Device Lock-Outs Fail Safe OperationTwist Cap Plug Connected to Each Feeder Auger Motor Electrical Disconnect PlugElectrical Safety Interlock Switch Located on mixer door Electric Safety Interlock SwitchUncrating the Equipment Mechanical InstallationMounting Configurations Site RequirementsMachine Mount Typical Mezzanine Mounted Batch Blender Mezzanine MountTypical Floor Mount Central Blender Layout Floor Mount Central BlenderPneumatic Connections Electrical ConnectionsInitial Set-up Mechanical Set-upStroke Limiters for Metering Gates Weigh Hopper Final Connections Weigh Hopper InstallationController Set-up Display Main Recipe ScreenRecipe Page Start Blender Controller Menu StructureBlender Calibration Display Calibration Menu Screen Feeder Calibration Auger Blenders Alarm SetupSetting Date and Time Network SetupAdditional Setup Parameters Initial Startup Start-up Quick Start ProcedureGeneral Operation New RecipesExisting Recipes Operation ProceduresTypical Recipe Entry Operator Screen Operator DisplaysRecipe Entry Formats Typical Inventory Display Operator ScreenRecipe Format Menu Quickset Mode Most common in injection molding Example Calculations of a 5-component blend in Quickset mode Switching Modes Percentage Mode Most common in extrusion and blow moldingRecipe Setup Current Recipe MenuInventory Shutdown Typical Batch Sizes Blender Batch Size lbsMixer and Dump Setup Re-Mix Timer Weigh Hopper Dump Delay TimeWeigh Hopper Dump Time Alarm Flags Weigh Hopper Dump CycleMixer Dump Time Calibration Error Typical PLC Battery Low Alarm Screen Feeder Clean Out Recipe Book Tree Diagram in -5 of this manualDisplay Recipe Contents Save Running Recipe to the BookLoad a Saved Recipe from the Book Color Changes Erase Recipe or Entire BookTypical Inventory Shutdown Operator Screen Shut-downSample Preventative Maintenance Schedule Preventative Maintenance ScheduleCorrective Maintenance Preventative MaintenanceElectrical Internal Components of the Control PanelOutput Signals from Programmable Controller Input Signals to Programmable ControllerIntroduction TroubleshootingProblem Corrective action Problem Corrective action Warranty will be voided Service Department Warranty Specifications WarrantyWarranty Restrictions Warranty LiabilitiesTechnical Specifications Equipment SpecificationsCustomer Responsibilities Annex B Information Final Assembly Drawings and DiagramsMixer Sub-Assembly Typical Mixer Assembly Parts List Typical Hopper Assembly Parts List Hopper Sub-assemblyTypical R.A.M. Hopper Assembly Parts List Hopper R.A.M. Regrind Auger Metering Sub-Assembly OptionalTypical Additive Feeder Hopper Assembly Parts List Hopper Additive Feeder Sub-Assembly OptionalTypical Weigh Hopper Assembly Parts List Weigh Hopper Sub-assemblyTypical Slidegate Assembly Parts List Slide Gate Sub-assemblyTypical Knife Gate below mixer Assembly Parts List Knife Gate Sub-assembly HD OptionalTypical Knife Gate floor stand Assembly Parts List Knife Gate Sub-assembly RD OptionalControl Panel Layout Typical Mitsubishi Controller Main Parts ListSpare Parts Kits Blender Spare Parts ListingAddendum Service Supervisor Information PasswordsProgrammable Settings Factory Setup Menu Advanced Weight Options ScreenMetering Test Screen Feed Calibration Options Screen Feed Algorithm Options ScreenMechanical Options Screen Feeder SetupUnits Customer Setup MenuAlarm Log Typical Alarm Flags & Feeder Setup ScreenRecipe Format Factory Default Setup ParametersLoadcell Calex Module Dipswitch Settings General Blender Info Mitsubishi Communications ManualBlender Alarms Inventory Info Recipe Info this is Where YOU Right the NEW Recipe to Recipe Book Manipulation Fixed Decimal Explanation Alarm Number ExplanationUntil the Hopper Feeds Material Into the NEW Batch Technical Assistance Service Department Sales DepartmentParts Department Contract Department
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882.00207.00 specifications

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