Manuals / Sterling / Household Appliance / Dehumidifier

Sterling STT 500 manual Dehumidified Air Dryer, Safety instructions, Maintenance

Models: STT 500

1 87

Download 87 pages 16.91 Kb

Page 14

Maintenance

Dehumidified Air Dryer

When drying plastics which emit gases dangerous for human health, take care that the regenera- tion exhaust air is disposed of without polluting the environment. This will prevent danger to peo- ple and material!

Maintenance

Before starting maintenance work, appoint a supervisor.

Inform the responsible personnel before maintenance work on the system is started. Caution: Danger of accidents!

Disconnect the equipment from mains supply before starting maintenance procedures to ensure that it cannot be switched on unintentionally. Caution: Danger of accidents!

All pipes, hoses and screwed connections should be checked regularly for leaks and damage. Any faults which arise should be corrected immediately. Danger of accidents!

Depressurise all compressed air piping before starting maintenance work. Danger of accidents!

The air filters should only be cleaned/replaced when the the main switch is off and the blower has stopped. This avoids injury and damage to equipment!

Any maintenance work on the equipment should only be started when the the main switch is off and the blower has stopped. This avoids injury and damage to equipment!

Check the v-belts of the blower only when the main switch is switched off and the blowers have stopped. Caution: Danger of accidents!

Open drying hoppers only if they are completely empty. Danger of accidents!

Never open drying hoppers while the device is in operation. Danger: Iinjury through burns!

Open drying hoppers only if they have been cooled down sufficiently. Danger: Injury through burns!

Before starting maintenance work wait until the drying cells, drying hoppers and air pipings have been cooled down sufficiently. Avoid touching any of these parts! Danger: Injury through burns!

Remove any granules remaining on the ground. Danger of accidents!

Arrest the wheels after installation if the dryer is mounted on a movable frame. This will prevent danger to people and material!

SM2-620

Safety instructions 2-4

Image 14

Sterling STT 500 manual Dehumidified Air Dryer, Safety instructions, Maintenance

Contents

Sterling Material Processing Operating Instructions Dehumidified Air Dryer STTwith Siemens S7 control unit SM2-620Parts and Service Department Sales and Contracting DepartmentOrder confirmation number STT Sterling Material ProcessingEdition 04/02 SM2-620Page TABLE OF CONTENTS Page Page General Information 1. General InformationDehumidified Air Dryer Dehumidified Air Dryer 1.1. Warnings and symbols General Information1.4. Fields of applications 1.2. Explanations and information1.3. Legal basis 1.5. Notes on UsageDehumidified Air Dryer 2. Safety instructionsSafety instructions General Dehumidified Air Dryer 2.1. For your safetySafety instructions Dehumidified Air Dryer Safety instructionsAssembly OperationDehumidified Air Dryer Safety instructionsMaintenance Dehumidified Air Dryer 2.2. For the safety of the devicesSafety instructions 3. Start-up Start-upStart-up STT 3.1. Control system3.1.1. Key assignment Start-up STT 3.1.2. Flow chartIndicator lamp messages SM2-620Start-up STT 3.2. Switching on the dryer3.2.1. Operation statuses Start-up 3.4. PasswordsSTT 3.3. Viewing the software-version Logout LoginStart-up EditTimer on/off STT 3.5. Basic parameters3.5.1. Turning the devices on/off Start-upStart-up Press the ”F1-keyRegeneration Heater Act STT 3.5.2. Entering dryer valuesStart-up Used air ActReturn air cooler Act Start-upReturn air cooler Target Hopper entry X Target STT 3.5.3. Entering hopper valuesStart-up Hopper entry X Acttarget % = C F Start-upGranules Granules act.: _ CStart-up STT 3.5.4. Observing processing statuse.g. valve block moved in/moved out/error Date STT 3.5.5. Setting date and timeStart-up TimeContrast STT 3.5.6. Viewing/changing language and contrastStart-up LanguageSelect ”Parameters” STT 3.5.7. Changing parametersStart-up Run on time drying blower --300 secXX ON 00 00 OFF 00 00 XX = day Mo-Su STT 3.5.8. Setting the timerStart-up Select ”Main menu” STT 3.6. Starting continuous operationStart-up Select ”System runtime” STT 3.7. Viewing system runtimeStart-up System runtimeDisconnect the power supply STT 3.8. Switching the dryer offSwitch off the dryer at the main switch Start-upDehumidified Air Dryer 4. Error and error correctionError and error correction Dehumidified Air Dryer Error and error correctionFailures must be repaired immediately LED “ALARM” View Error and error correctionDehumidified Air Dryer Number Error and error correctionDehumidified Air Dryer Total messagesOverflow Error and error correctionDehumidified Air Dryer Overflow warning On/OffMain Switch is Off Error and error correctionPLC = SPS Battery is Empty A Safety Temperature Limiter has been ActivatedInsufficient Temperature Regeneration Heater Error and error correctionExcess Temperature Regeneration Heater Error Bypass FlapExcess Temperature Drying Heater Error and error correctionTemperature Measurement Drying Heater Defective Insufficient Temperature Drying HeaterExcess Temperature Granules Hopper Error and error correctionTemperature Measurement Granules Defective Hopper Valve Error Hopper5. Maintenance MaintenanceMaintenance Please observe the maintenance scheduleSTT 5.1. Maintenance intervals MaintenanceSTT 5.2. Cleaning/renewing the air filters MaintenanceMaintenance Return air filterMaintenance Regeneration air filterFilter of the electrical cabinet MaintenanceRe-installthe cleaned/new filter mat Remove the lid of the filterSTT 5.3. Tensioning the V-belts MaintenanceMaintenance Remove the protective grid of the blower positionMaintenance 5.5. Servicing the accessories5.4. Disposing of the drying agent 5.6. Changing the battery of the control system MaintenanceOrder number battery MaintenanceStore backup batteries in a dry and cool place SM2-620STT 5.6.1. Resetting the control values Maintenance6. Functional description Functional descriptionFunctional description STT 6.1. DryerDew point dependent regeneration switch optional STT 6.2. Drying hopper optional Functional descriptionSTT 6.3. Return air cooler Functional descriptionFunctional description STT 6.4. Hopper heaters optional6.5. Automatic motor flaps optional Dehumidified Air Dryer 7. Transport, Assembly and StorageTransport, Assembly and Storage with a fork lift truck Dehumidified Air Dryer 7.1. Transport and PackingTransport, Assembly and Storage with a workshop crane Transport, Assembly and StorageDehumidified Air Dryer Transport with a workshop crane SM2-620Transport, Assembly and Storage Dehumidified Air Dryer 7.2. Assembly7.3. Storage Dehumidified Air Dryer 8. Assembly instructionsAssembly instructions Dehumidified Air Dryer 8.2. Connection of the air coolersAssembly instructions Dehumidified Air Dryer 8.3. Electrical connection Assembly instructionsBasic Equipment 9. Technical DataTechnical Data Optional EquipmentTechnical Data SM2-620SM2-620 Technical DataDimension sheet 10. Spare parts list Spare parts listPos. ID-numberDescription Spare parts list4 5 6 97762 Spare parts listPos. ID-numberDescription 83986 Spare parts listPos. ID-numberDescription Moisture sensorAccessories 10.1. Switching Cabinet and Operating UnitSpare parts list Return air coler optionalDehumidified Air Dryer 11. Electrical manualElectrical manual Dehumidified Air Dryer 12. AccessoriesAccessories Version 64.10-0134GB0110/9702/01GB Accessories Entering values on the OPSterling Material Processing General Operation 3.3Entering ValuesProcedure StepException 3.3.1Entering Numerical ValuesGeneral Operation General Operation 3.3.2Entering Alphanumeric ValuesProcedure StepStep ProcedureGeneral Operation General Operation 3.3.3Entering Symbolic ValuesProcedure Step10/00GB Accessories Flap control with Fuzzy-LogicSterling Material Processing 10/00GB Flap control with Fuzzy-LogicControl unit “flap”