Mitsubishi Electronics 882.00207.00 specifications Service Department

Page 72

 

Problem

 

Corrective action

 

 

 

This Is caused by the difference in bits not being large enough.

 

I can’t calibrate the Scale

 

Using the Direct Scale Readout, examine current loadcell bits with

 

 

and without the calibration weight. If the bits do not change

 

without an error message.

 

 

 

significantly, then check for pellets jamming the loadcells and

 

 

 

 

 

 

check the loadcell circuit. You might have a bad loadcell.

 

 

 

 

 

 

 

Do other feeders calibrate correctly? Is the feeder I’m trying to

 

 

 

calibrate a large gate? If these are true, then lower the Batch % for

 

 

 

Feeder Cal setting under Feed Calibration Options. This can be

 

I can’t calibrate the feeder

 

observed by looking at the Hopper Weight display.

 

without an error message.

 

 

 

 

None of the feeders calibrate? Check the Scale Calibration. If this

 

 

 

 

 

 

is correct, then lower the Batch% for Feeder Cal setting under Feed

 

 

 

Calibration Options for each feeder. This can be observed by

 

 

 

looking at the Hopper Weight display.

 

 

 

 

 

 

 

Check the dump time setting. It may be set too short.

 

Weigh hopper does not empty

 

If this does not correct the problem, clean the weigh hopper and

 

completely.

 

recheck the scale diagnostics readout. If not showing (0) zero when

 

 

 

empty, re-calibrate the scale.

 

 

 

 

 

 

 

Verify application is not exceeding blender capacity.

 

 

 

Verify additive percentage is not higher than designed, resulting in

 

Blender does not make rate.

 

excessive dispense time.

 

 

 

Verify all materials are feeding freely through the metering gates

 

 

 

or augers.

 

 

 

 

 

I have changed the recipe entry

 

All of these settings are part of the current running recipe. This

 

mode, metering order, batch

 

 

 

makes it easy for the operator to load a stored recipe without

 

size, inventory shutdown,

 

 

 

having to reconfigure all of these parameters for the new recipe.

 

weigh every batch mode, or

 

 

 

All you have to do is touch “Accept New Recipe” to load these

 

feeder type and alarm flags, but

 

 

 

values into the running recipe.

 

the change hasn’t taken place.

 

 

 

 

 

 

 

 

 

A feeder always puts too much

 

Check that the Gate Cycle Time is set correctly. If it is then lower

 

 

the Initial % of Target to Meter. These are found under Feed

 

material in the batch.

 

 

 

Algorithm Options. Make small adjustments and retest.

 

 

 

 

 

 

 

 

 

 

Increase the Gate Cycle Time. This is found under Feed

 

A feeder is retrying more than

 

Algorithm Options. Make small adjustments and retest.

 

 

 

 

 

Increase the Allowed Underfeed value under Feed Algorithm

 

2-4 times.

 

 

 

Options.

 

 

 

 

 

 

 

 

 

 

Decrease the Retries before Double Gate Time.

 

 

 

 

Note: Other service problems or questions can be answered by contacting the

 

Service Department.

 

Bulletin Number

Chapter 6: Troubleshooting

71 of 102

Page 71 Page 73
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Page 71 Page 73
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 CorrectWarranty Returns 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 GlovesResponsibility General ResponsibilityOperator Responsibility Remember Maintenance Responsibility Reporting a Safety DefectAccessories Customer ServiceModels Covered in This Manual General DescriptionEquipment Specifications Typical Features and Components Mechanical FeaturesController 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 StandsRegrind Auger Metering R.A.M. Hopper Additive Feeder 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 EquipmentMounting Configurations Site RequirementsMachine Mount Mezzanine Mount Typical Mezzanine Mounted Batch BlenderFloor Mount Central Blender Typical Floor Mount Central Blender LayoutElectrical Connections Pneumatic ConnectionsInitial Set-up Mechanical 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 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 Tree Diagram in -5 of this manual Recipe BookDisplay Recipe Contents Save Running Recipe to the BookLoad 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 LiabilitiesTechnical Specifications Equipment 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 KitsAddendum Service Supervisor Information PasswordsProgrammable Settings Factory Setup Menu Advanced Weight Options ScreenMetering 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

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