Mitsubishi Electronics 882.00207.00 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

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Chapter 2: Functional Description

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Contents Gravimetric Slide Gate Batch Blender Mitsubishi Controller Parts and Service Department Unpacking and Inspection Event of Shipping DamageIf the Shipment is Not Complete If the Shipment is Not CorrectReturns Warranty ReturnsCredit Returns Table of Contents Maintenance Customer Responsibilities Technical Specifications How to Use This Manual Safety Symbols Used in this ManualSafety Tags and Warning Labels Description Follow all Safety Codes Wear Safety Glasses and Work GlovesGeneral Responsibility ResponsibilityOperator Responsibility Remember Maintenance Responsibility Reporting a Safety DefectAccessories Customer ServiceModels Covered in This Manual General DescriptionEquipment Specifications Mechanical Features Typical Features and ComponentsController Features System Component Description Supply HoppersSlide Gates Typical Slide Gate Assembly Weigh HopperTypical Weigh Hopper Assembly Mix Chamber Operator Control Panel DisplayFunction Typical Operator Screens Typical Setup Screens Bulletin Number Functional Description Optional Components Pneumatic Slide Gate below MixerLow Level Sensors Mezzanine and Floor StandsAdditive Feeder Hopper Regrind Auger Metering R.A.M. HopperTake-off Compartments Safety Features Safety Circuit StandardsSafety Device Lock-Outs Fail Safe OperationElectrical Disconnect Plug Twist Cap Plug Connected to Each Feeder Auger MotorElectric Safety Interlock Switch Electrical Safety Interlock Switch Located on mixer doorMechanical Installation Uncrating the EquipmentSite Requirements Mounting ConfigurationsMachine Mount Mezzanine Mount Typical Mezzanine Mounted Batch BlenderFloor Mount Central Blender Typical Floor Mount Central Blender LayoutElectrical Connections Pneumatic ConnectionsMechanical Set-up Initial Set-upStroke Limiters for Metering Gates Weigh Hopper Installation Weigh Hopper Final ConnectionsDisplay Main Recipe Screen Controller Set-upBlender Controller Menu Structure Recipe Page StartBlender Calibration Display Calibration Menu Screen Alarm Setup Feeder Calibration Auger BlendersNetwork Setup Setting Date and TimeAdditional Setup Parameters Initial Startup Quick Start Procedure Start-upGeneral Operation New RecipesOperation Procedures Existing RecipesOperator Displays Typical Recipe Entry Operator ScreenTypical Inventory Display Operator Screen Recipe Entry FormatsRecipe Format Menu Quickset Mode Most common in injection molding Example Calculations of a 5-component blend in Quickset mode Percentage Mode Most common in extrusion and blow molding Switching ModesRecipe Setup Current Recipe MenuTypical Batch Sizes Blender Batch Size lbs Inventory ShutdownMixer and Dump Setup Weigh Hopper Dump Delay Time Re-Mix TimerWeigh Hopper Dump Time Weigh Hopper Dump Cycle Alarm FlagsMixer Dump Time Calibration Error Typical PLC Battery Low Alarm Screen Feeder Clean Out Tree Diagram in -5 of this manual Recipe BookSave Running Recipe to the Book Display Recipe ContentsLoad a Saved Recipe from the Book Erase Recipe or Entire Book Color ChangesShut-down Typical Inventory Shutdown Operator ScreenPreventative Maintenance Schedule Sample Preventative Maintenance SchedulePreventative Maintenance Corrective MaintenanceElectrical Internal Components of the Control PanelInput Signals to Programmable Controller Output Signals from Programmable ControllerTroubleshooting IntroductionProblem Corrective action Problem Corrective action Warranty will be voided Service Department Warranty Warranty SpecificationsWarranty Restrictions Warranty LiabilitiesEquipment Specifications Technical SpecificationsCustomer Responsibilities Annex B Information Drawings and Diagrams Final AssemblyMixer Sub-Assembly Typical Mixer Assembly Parts List Hopper Sub-assembly Typical Hopper Assembly Parts ListHopper R.A.M. Regrind Auger Metering Sub-Assembly Optional Typical R.A.M. Hopper Assembly Parts ListHopper Additive Feeder Sub-Assembly Optional Typical Additive Feeder Hopper Assembly Parts ListWeigh Hopper Sub-assembly Typical Weigh Hopper Assembly Parts ListSlide Gate Sub-assembly Typical Slidegate Assembly Parts ListKnife Gate Sub-assembly HD Optional Typical Knife Gate below mixer Assembly Parts ListKnife Gate Sub-assembly RD Optional Typical Knife Gate floor stand Assembly Parts ListTypical Mitsubishi Controller Main Parts List Control Panel LayoutBlender Spare Parts Listing Spare Parts KitsPasswords Addendum Service Supervisor InformationProgrammable Settings Advanced Weight Options Screen Factory Setup MenuMetering Test Screen Feed Algorithm Options Screen Feed Calibration Options ScreenFeeder Setup Mechanical Options ScreenCustomer Setup Menu UnitsTypical Alarm Flags & Feeder Setup Screen Alarm LogFactory Default Setup Parameters Recipe FormatLoadcell Calex Module Dipswitch Settings Mitsubishi Communications Manual General Blender InfoBlender Alarms Inventory Info Recipe Info this is Where YOU Right the NEW Recipe to Recipe Book Manipulation Alarm Number Explanation Fixed Decimal ExplanationUntil the Hopper Feeds Material Into the NEW Batch Service Department Sales Department Technical AssistanceParts Department Contract Department
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882.00207.00 specifications

Mitsubishi Electronics has always been at the forefront of innovation in the field of electronics, and one of its significant products is the Mitsubishi Electronics 882.00207.00. This device is designed for enhanced performance and reliability, providing a range of features that cater to both industrial and consumer needs.

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