Mitsubishi Electronics 882.00273.00 specifications Safety Features, Safety Circuit Standards

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2-5 Safety Features

This section includes information on safety devices and procedures that are inherent to the Gravimetric Batch Blender. This manual is not intended to supersede or alter safety standards established by the user of this equipment. Instead, the material contained in this section is recommended to supplement these procedures in order to provide a safer working environment.

At the completion of this section, the operator and maintenance personnel will be able to do the following:

•Identify and locate specific safety devices.

•Understand the proper use of the safety devices provided.

•Describe the function of the safety device.

Safety Circuit Standards

Safety circuits used in industrial systems protect the operator and maintenance personnel from dangerous energy. They also provide a means of locking out or isolating the energy for servicing equipment.

Various agencies have contributed to the establishment of safety standards that apply to the design and manufacture of automated equipment. The Occupational Safety and Health Administration (OSHA) and the Joint Industrial council (JIC) are just a few of the organizations that have joined with the plastics industry to develop safety standards.

Every effort has been made to incorporate these standards into the design of the Slide Gate/Auger Blender; however, it is the responsibility of the personnel operating and maintaining the equipment to familiarize themselves with the safety procedures and the proper use of any safety devices.

Fail Safe Operation

If a safety device or circuit should fail, the design must be such that the failure causes a “Safe” condition. As an example, a safety switch must be a normally open switch. The switch must be held closed with the device it is to protect. If the switch fails, it will go to the open condition, tripping out the safety circuit.

At no time should the safety device fail and allow the operation to continue. For example, if a safety switch is guarding a motor, and the safety switch fails, the motor should not be able to run.

Safety Device Lock-Outs

Some safety devices disconnect electrical energy from a circuit. The safety devices that are used on the Slide Gate/Auger Blenders are primarily concerned with pneumatic and electrical power disconnection and the disabling of moving parts that may need to be accessed during the normal operation of the machine.

Some of the safety devices utilize a manual activator. This is the method of initiating the safety lock out. This may be in the form of a plug, lever or a handle. Within this lockable handle, there may be a location for a padlock. Personnel servicing the equipment should place a padlock in the lockout handle.

In addition to the safety devices listed above, these blenders are equipped with a line cord plug (Shown in figures 17 and 18). This allows the operator or maintenance personnel to

BF1-615.3

Chapter 2: 1BFunctional Description

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Contents We are committed to a continuing program of product improvement Write Down Your Serial Numbers Here For Future ReferenceGravimetric Slide Gate Batch Blender Mitsubishi Controller Part Number Bulletin Number BF1-615.3 Effective 11/07/07If the Shipment is Not Complete Shipping InfoUnpacking and Inspection In the Event of Shipping DamageCredit Returns Warranty ReturnsCHAPTER 2 FUNCTIONAL DESCRIPTION Table of ContentsCHAPTER 1 SAFETY CHAPTER 3 INSTALLATIONCHAPTER 7 APPENDIX CHAPTER 5 MAINTENANCECHAPTER 6 TROUBLESHOOTING CHAPTER 4 OPERATIONHopper Additive Feeder Sub-Assembly Optional Chapter 1 Safety 1-1 How to Use This ManualSafety Symbols Used in this Manual Description Figure 1 Safety Tags and Warning LabelsUse care when LOADING, UNLOADING, RIGGING, or MOVING this equipment 1-2 Warnings and PrecautionsCAUSING BODILY INJURY EXISTS ANY TIME THE POWER IS ON Wear SAFETY GLASSES and WORK GLOVES1-3 Responsibility General ResponsibilityOperator Responsibility REMEMBER Reporting a Safety Defect Maintenance Responsibility2-1 Models Covered in This Manual AccessoriesCustomer Service Chapter 2 Functional Description2500 Figure 2 Equipment SpecificationsFigure 3 Typical Blender Assembly Dimensions and SpecificationsFigure 4 Typical Mitsubishi Controller Touch Screen Display 2-3 Typical Features and ComponentsMechanical Features Controller FeaturesFigure 5 Typical Hopper Assembly System Component DescriptionSupply Hoppers Slide Gates Weigh Hopper Figure 6 Typical Slide Gate AssemblyFigure 7 Typical Weigh Hopper Assembly Figure 8 Typical Mixer Assembly Mix ChamberOperator Control Panel Display Function Figure 9 Typical Mitsubishi Controller Touch Screen DisplayFigure 10 Controller Pushbuttons & Touchscreen Tags Button22 of Figure 11 Typical Operator Screens23 of Figure 12 Typical Setup Screens24 of Position Figure 13 Mixer Slide Gate Switch Positions2-4 Optional Components Pneumatic Slide Gate below MixerAdditive Feeder Hopper Figure 15 Typical R.A.M. Hopper Blender ConfigurationFigure 16 Typical Additive Feeder Configuration Regrind Auger Metering R.A.M. HopperFail Safe Operation 2-5 Safety FeaturesSafety Circuit Standards Safety Device Lock-OutsFigure 17 Electrical Disconnect Plug Twist Cap Plug Connected to Each Feeder Auger MotorFigure 18 Twist Cap Plug Figure 19 Electrical Safety Interlock Switch Located on mixer door Electric Safety Interlock SwitchFigure 20 Blender Lifting Lugs 1 on each side Chapter 3 Installation3-2 Mechanical Installation 3-1 Uncrating the EquipmentMounting Configurations Site RequirementsMachine Mount GRAVIMETRIC BATCH BLENDER MEZZANINE SUPPLIED BY CUSTOMER Note Larger blenders need to be braced as part of the installationMezzanine Mount Figure 21 Typical Mezzanine Mounted Batch BlenderFigure 22 Typical Floor Mount Central Blender Layout Floor Mount Central Blender3-3 Electrical Connections 3-4 Pneumatic ConnectionsFigure 23 Customer-Supplied Pneumatic Components Figure 24 Stroke Limiters 3-5 Initial Set-upMechanical Set-up Stroke Limiters for Metering GatesFigure 26 Display Startup Screen Weigh Hopper InstallationFigure 25 Weigh Hopper Final ConnectionsController Set-up Figure 27 Display Main Recipe ScreenBlender Controller Menu Structure Blender Calibration Current Loadcell Bits Follow Instructions Figure 28 Display Calibration Menu ScreenFigure 29 Display Calibration Screen Enter in the Calibration Weight Press here to perform the calibrationSelect a Feeder to Configure Change the Alarm Silence Delay Alarm SetupFigure 30 Display Alarm Flags & Feeder Setup Screen Feeder Calibration Auger BlendersFigure 32 PanelView Configuration Screen Network SetupFigure 31 Ethernet Setup Screen Setting Date and TimeAdditional Setup Parameters 3-6 Initial Startup General Operation Quick Start ProcedureChapter 4 Operation 4-1 Start-up4-2 Operation Procedures Existing RecipesNote Press “Push to Start or Stop” button to start blender Operator Displays Figure 33 Typical Recipe Entry Operator ScreenFigure 34 Typical Manual Control Operator Screen Recipe Entry Formats Figure 35 Typical Inventory Display Operator ScreenRecipe Format Menu “Quickset” Mode Most common in injection molding Page Figure 37 Example Calculations of a 4-component blend in “Parts” mode Switching ModesRecipe Setup “Percentage” Mode Most common in extrusion and blow moldingInventory Shutdown Figure 38 Typical Batch SizesBlender Batch Size lbsFigure 40 Typical Mixer and Dump Setup Operator Screen Auto Start FeatureMixer and Dump Setup Mix TimerRe-Mix Timer Weigh Hopper Dump TimeWeigh Hopper Dump Delay Time Mixer Dump Time Alarm FlagsFigure 41 Typical “Out of Material” Alarm Screen Weigh Hopper Dump CycleFigure 44 Typical “Power Interruption” Alarm Screen Figure 42 Typical “Maximum Hopper Weight” Alarm ScreenMAX HOPPER WEIGHT EXCEEDED check batch size Figure 43 Typical “Calibration Error” Alarm ScreenFigure 45 Typical “PLC Battery Low” Alarm Screen PLC BATTERY LOWFigure 46 Typical “E-Stop Activated” Alarm Screen Figure 47 Typical Manual Control Operator Screen Feeder Clean OutTree Diagram in section 3-5 of this manual Recipe BookLoad a Saved Recipe from the Book Display Recipe ContentsFigure 48 Typical Recipe Book Operator Screen Save Running Recipe to the BookColor Changes Erase Recipe or Entire BookFigure 49 Typical Inventory Shutdown Operator Screen 4-3 Shut-downSystem model # Chapter 5 Maintenance5-1 Preventative Maintenance Schedule Figure 50 Sample Preventative Maintenance ScheduleInternal Components of the Control Panel 5-2 Preventative Maintenance5-3 Corrective Maintenance ElectricalInput Signals to Programmable Controller Output Signals from Programmable ControllerNote The alarm contact has a maximum load of 3 amps Corrective action Chapter 6 TroubleshootingProblem 6-1 IntroductionCorrective action ProblemCorrective action warranty will be voided Service Department Chapter 7 Appendix 7-1 Technical SpecificationsEquipment Specifications Figure 52 Equipment SpecificationsAnnex B Information 7-2 Drawings and Diagrams Final AssemblyFigure 53 Typical Final Assembly Parts List 75 of Mixer Sub-AssemblyA0770319 Figure 54 Typical Mixer Assembly Parts ListFigure 55 Typical Hopper Assembly Parts List Hopper Sub-assemblyFigure 56 Typical R.A.M. Hopper Assembly Parts List Hopper R.A.M. Regrind Auger Metering Sub-Assembly OptionalFigure 57 Typical Additive Feeder Hopper Assembly Parts List Hopper Additive Feeder Sub-Assembly OptionalFigure 58 Typical Weigh Hopper Assembly Parts List Weigh Hopper Sub-assemblyFigure 59 Typical Slidegate Assembly Parts List Slide Gate Sub-assemblyFigure 60 Typical Knife Gate below mixer Assembly Parts List Knife Gate Sub-assembly HD OptionalFigure 61 Typical Knife Gate floor stand Assembly Parts List Knife Gate Sub-assembly RD OptionalFigure 62 Typical Mitsubishi Controller Main Parts List Figure 63 Typical Mitsubishi Display Main Parts ListControl Panel Layout Spare Parts Kits Figure 64 Blender Spare Parts ListingFigure 65 Typical Operator Setup Screen 7-4 Addendum Service Supervisor InformationPasswords Programmable SettingsMetering Test Screen Figure 66 Typical Engineering Only Setup ScreenFactory Setup Menu Advanced Weight Options ScreenFeed Calibration Options Screen Figure 68 Typical Advanced Weight Options ScreenFeed Algorithm Options Screen Figure 69 Typical Feed Algorithm Options ScreenFigure 71 Typical Mechanical Options Screen Feeder SetupFigure 72 Typical Feeder Setup Screen Mechanical Options ScreenFigure 73 Typical Units Screen Customer Setup MenuFigure 74 Typical Ethernet Setup Screen UnitsFigure 75 Typical Alarm Flags & Feeder Setup Screen Alarm LogFigure 76 Typical Alarm Log Screen 92 of Factory Default Setup ParametersBF1-615.3 Chapter 7 6BAppendixVIRGIN 93 ofBLENDER STARTING AND STOPPING 7-5 Mitsubishi Communications ManualNote ITEMS MARKED R ARE READ ONLY AND ITEMS MARKED RW ARE READ/WRITE GENERAL BLENDER INFOBLENDER ALARMS INVENTORY INFO CURRENT RECIPE INFO THIS IS THE RECIPE THAT IS CURRENTLY BEING MADE RECIPE INFO THIS IS WHERE YOU RIGHT THE NEW RECIPE TORECIPE BOOK MANIPULATION TARGETS VS. ACTUAL WEIGHT INFOFIXED DECIMAL EXPLANATION Alarm Number ExplanationWRITING RECIPE EXPLANATION RECORDING THE TARGETS VS. ACTUALS FOR EACH BATCHUNTIL THE HOPPER FEEDS MATERIAL INTO THE NEW BATCH Sales Department Service Department7-6 Technical Assistance Parts Department
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