Mitsubishi Electronics 882.00207.00 Preventative Maintenance, Corrective Maintenance, Electrical

Page 65

5-2 Preventative Maintenance

Our blenders need periodic maintenance to provide long dependable service. Check these elements regularly:

•Check functionality of safety circuit daily.

•Maintain proper air pressure and drain water from trap assembly on regulator – as required.

•Periodically lubricate slide gate rails.

WARNING! Always remove plug and disconnect power before servicing blender.

WARNING! Always read operating manual before operating or servicing blender.

5-3 Corrective Maintenance

Electrical

This section is designed to give the operator an overview of the electrical system that controls the Slide Gate/Auger blending system. Since the blender’s control panel is a self-contained pluggable item, seldom will a maintenance person be required to enter the control panel. For purposes of understanding the system, it is advisable that the maintenance personnel be familiar with not only the internal workings of the control panel, but also with the input and output signals to the Slide Gate/Auger blender.

This section includes the following:

•Internal components of the control panel

•Input signal to the control panel

•Output signals from the control panel

Internal Components of the Control Panel

Note: See Installation Packet supplied with unit for complete electrical schematics.

This section describes the internal components of the Slide Gate/Auger blending system control panel. It is not the intent of this section to completely familiarize the reader with the details on industrial control panel construction or standards, but simply to familiarize the reader with the major components inside the control panel.

The customer must supply 120/1/50 or 60 (or 220/1/50 or 60) via wires L1 & L2 (N). Please ensure that the earth ground connection is properly connected to an established earth ground.

•“Power on” is indicated by a lighted on/off switch.

•“Slide gate below mixer” switch controls position of optional slide gate.

•“Safety Active” light displays status of safety interlock circuit. Audible alarm horn alerts operator to blender fault.

882.00207.00

Chapter 5: Maintenance

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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 CorrectCredit Returns Warranty ReturnsReturns 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 CodesOperator Responsibility ResponsibilityGeneral Responsibility Remember Reporting a Safety Defect Maintenance ResponsibilityCustomer Service AccessoriesModels Covered in This Manual General DescriptionEquipment Specifications Controller Features Typical Features and ComponentsMechanical Features Supply Hoppers System Component DescriptionSlide Gates Weigh Hopper Typical Slide Gate AssemblyTypical Weigh Hopper Assembly Operator Control Panel Display Mix ChamberController Pushbuttons & Touchscreen Tags Button Function Typical Operator Screens Typical Setup Screens 882.00207.00 Functional Description Pneumatic Slide Gate below Mixer Optional ComponentsLow Level Sensors Mezzanine and Floor StandsTake-off Compartments Regrind Auger Metering R.A.M. HopperAdditive Feeder Hopper 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 InstallationMachine Mount Mounting ConfigurationsSite Requirements Typical Mezzanine Mounted Batch Blender Mezzanine MountTypical Floor Mount Central Blender Layout Floor Mount Central BlenderPneumatic Connections Electrical ConnectionsStroke Limiters for Metering Gates Initial Set-upMechanical Set-up Weigh Hopper Final Connections Controller 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 RecipesOperator Displays Operation ProceduresExisting Recipes Typical Recipe Entry Operator Screen Recipe Entry Formats Typical Inventory Display Operator ScreenRecipe Format Menu Quickset Mode Most common in injection moldingExample Calculations of a 5-component blend in Quickset mode Recipe Setup Inventory Shutdown Typical Batch Sizes Blender Batch Size lbsMixer and Dump Setup Weigh Hopper Dump Time Re-Mix TimerWeigh Hopper Dump Delay Time Weigh Hopper Dump Cycle Alarm FlagsMixer Dump Time Hopper 1-6 Out of MaterialPower Interruption while metering a Batch Max Hopper Weight Exceeded, Check Batch SizeCalibration Error, Clean out Hopper and Check Calibration Blender Powered On/Off PLC Battery LowInventory Cleared Stop ScreenFeeder Clean Out Recipe Book Diagram in -5 of this manualLoad a Saved Recipe from the Book Display Recipe ContentsSave Running Recipe to 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 Controller warranty will be voided Problem Corrective action Warranty Specifications WarrantyWarranty Restrictions Warranty LiabilitiesEquipment Specifications Technical SpecificationsAnnex 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 ListingProgrammable Settings Addendum Service Supervisor InformationPasswords Metering Test Screen Factory Setup MenuAdvanced Weight Options Screen Feed Calibration Options Screen Feed Algorithm Options ScreenMechanical Options Screen Feeder SetupUnits Customer Setup MenuTypical Alarm Flags & Feeder Setup Screen Alarm LogReport Setup 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 ExplanationRecording the Targets VS. Actuals for Each Batch Technical Assistance Service Department Sales DepartmentParts Department Contract Department882.00207.00 Appendix 102
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882.00207.00 specifications

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