Mitsubishi Electronics 882.00207.00 specifications Problem Corrective action

Page 71

 

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 you’re trying to

 

 

 

calibrate a large gate? If both answers are yes, then lower the

 

 

 

Batch % for Feeder Cal setting under Feed Calibration Options.

 

I can’t calibrate the feeder

 

This can be 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.

882.00207.00

Chapter 6: Troubleshooting

70 of 102

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Contents Gravimetric Slide Gate Batch Blender Mitsubishi Controller Parts and Service Department If the Shipment is Not Correct Unpacking and InspectionEvent of Shipping Damage If the Shipment is Not CompleteCredit 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 ResponsibilityGeneral Description AccessoriesCustomer Service Models Covered in This ManualEquipment 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 Mezzanine and Floor Stands Optional ComponentsPneumatic Slide Gate below Mixer Low Level SensorsTake-off Compartments Regrind Auger Metering R.A.M. HopperAdditive Feeder Hopper Fail Safe Operation Safety FeaturesSafety Circuit Standards Safety Device Lock-OutsTwist 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 New Recipes Quick Start ProcedureStart-up General OperationOperator 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 Hopper 1-6 Out of Material Alarm FlagsWeigh Hopper Dump Cycle Mixer Dump TimePower Interruption while metering a Batch Max Hopper Weight Exceeded, Check Batch SizeCalibration Error, Clean out Hopper and Check Calibration Stop Screen PLC Battery LowBlender Powered On/Off Inventory ClearedFeeder 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 ScheduleInternal Components of the Control Panel Preventative MaintenanceCorrective Maintenance ElectricalOutput Signals from Programmable Controller Input Signals to Programmable ControllerIntroduction TroubleshootingProblem Corrective action Problem Corrective action Controller warranty will be voided Problem Corrective action Warranty Liabilities WarrantyWarranty Specifications Warranty RestrictionsEquipment 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 Contract Department Service Department Sales DepartmentTechnical Assistance Parts Department882.00207.00 Appendix 102
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882.00207.00 specifications

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