Mitsubishi Electronics 882.00273.00 Troubleshooting, Introduction, Problem, Corrective action

Page 67
Chapter 6: Troubleshooting

Chapter 6: Troubleshooting

6-1 Introduction

The utmost in safety precautions should be observed at all times when working on or around the machine and the electrical components. All normal trouble-shooting must be accomplished with the power off, line fuses removed, and with the machine tagged as out of service.

The use of good quality test equipment cannot be over-emphasized when troubleshooting is indicated. Use a good ammeter that can measure at least twice the AC and DC current that can be encountered for the machine. Be sure that the voltmeter has at least minimum impedance of 5,000 OHMS-per-volt on AC and 20,000 OHMS-per-volt on DC scales. Popular combination meters, VOM and VTVM can be selected to provide the necessary functions.

Before making haphazard substitutions and repairs when defective electrical components are malfunctioning, we recommend that you check the associated circuitry and assemblies for other defective devices. It is common to replace the obviously damaged component without actually locating the real cause of the trouble. Such hasty substitutions will only destroy the new component. Refer to wiring diagrams and schematics.

Locating mechanical problems, should they occur, is relatively straightforward. When necessary, refer to the parts catalog section.

Figure 51: Typical Troubleshooting Problems and Suggested Corrective Actions

 

Problem

 

Corrective action

 

 

 

Check to make sure that air is hooked up and the regulator gauge

 

 

 

reads at precisely 60 PSI.

 

Nothing happens when I push

 

Check that the access door to the mixer is shut properly.

 

“Start Blender”

 

 

 

 

Look on the Recipe Screen. If you see “Mixer Full”, then check

 

 

 

 

 

 

the mixer. If the mixer is not full, then check that the mixer prox

 

 

 

is adjusted properly (small screw on back).

 

 

 

 

 

“E-STOP has been Activated”

 

Check the E-Stop located on the front of the blender panel.

 

is shown

 

 

 

 

 

 

 

 

 

“Interface has been Locked” is

 

Click “Unlock” and enter in your User Password.

 

shown

 

 

 

 

 

I’ve forgotten my User

 

Contact the Service Department.

 

Password

 

 

 

 

 

 

 

 

 

POWER INTERRUPTION

 

Power was lost during a batch. Check your power source unless

 

ALARM

 

you intentionally killed the power during the batch.

 

 

 

 

 

PLC Battery Low

 

Change out the PLC with your spare and reprogram new unit.

 

 

Send old PLC back to manufacturer for repair.

 

 

 

 

 

 

 

BF1-615.3

Chapter 6: 5BTroubleshooting

67 of 101

Page 66 Page 68
Image 67
Page 66 Page 68
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 1-1 How to Use This Manual Chapter 1 SafetySafety 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 GLOVESGeneral Responsibility 1-3 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 FeaturesSystem Component Description Figure 5 Typical Hopper AssemblySupply Hoppers Slide Gates Weigh Hopper Figure 6 Typical Slide Gate AssemblyFigure 7 Typical Weigh Hopper Assembly Mix Chamber Figure 8 Typical Mixer AssemblyOperator 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-OutsTwist Cap Plug Connected to Each Feeder Auger Motor Figure 17 Electrical Disconnect PlugFigure 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 EquipmentSite Requirements Mounting ConfigurationsMachine 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 Blender3-4 Pneumatic Connections 3-3 Electrical 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-upExisting Recipes 4-2 Operation ProceduresNote Press “Push to Start or Stop” button to start blender Figure 33 Typical Recipe Entry Operator Screen Operator DisplaysFigure 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 TimerWeigh Hopper Dump Time Re-Mix TimerWeigh 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 ScreenPLC BATTERY LOW Figure 45 Typical “PLC Battery Low” Alarm ScreenFigure 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 ElectricalOutput Signals from Programmable Controller Input Signals to 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 Final Assembly 7-2 Drawings and DiagramsFigure 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 63 Typical Mitsubishi Display Main Parts List Figure 62 Typical Mitsubishi Controller 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 UnitsAlarm Log Figure 75 Typical Alarm Flags & Feeder Setup ScreenFigure 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 ExplanationRECORDING THE TARGETS VS. ACTUALS FOR EACH BATCH WRITING RECIPE EXPLANATIONUNTIL THE HOPPER FEEDS MATERIAL INTO THE NEW BATCH Sales Department Service Department7-6 Technical Assistance Parts Department
Top Page Image Contents