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Sterling STT 300 operating instructions Dehumidified Air Dryer, Error and error correction

Models: STT 300

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Dehumidified Air Dryer

Alarm messages are displayed in plain language on the screen of the operator device.

The display of alarm messages in the operator device can only be erased by pressing the ”ACK” key. The failure is not repaired.

Afailure is given by flashing of the LED “alarm”. If the alarm message is acknowledged by pressing of the “ACK” key, but the failure is not yet eli- minated, the flashing changes to steady light.

If a cooling appliance is present: If the temperature inside the switch box is higher than +50 °C, the lamp ”alarm - temperature inside switch box” goes on. If the temperature is still too high after 30 minutes, the dryer is switched off.

Failures must be repaired immediately.

LED “ALARM”:

flashes in case of an error;

is on if the error has been acknowledged but not yet eliminated; is off if there are no errors

Press the ”K2"-key.

SM2-615

Error and error correction 4-2

Page 37

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Sterling STT 300 Dehumidified Air Dryer, Error and error correction, Failures must be repaired immediately LED “ALARM”

Contents

with Simens control unit Operating Instructions Dehumidified Air Dryer STTSterling Material Processing SM2-615Sales and Contracting Department Parts and Service DepartmentEdition 05/02 STT Sterling Material ProcessingOrder confirmation number SM2-615Page TABLE OF CONTENTS Page Page Dehumidified Air Dryer 1. General InformationGeneral Information General Information Dehumidified Air Dryer 1.1. Warnings and symbols1.3. Legal basis 1.2. Explanations and information1.4. Fields of applications 1.5. Notes on UsageSafety instructions 2. Safety instructionsDehumidified Air Dryer Safety instructions Dehumidified Air Dryer 2.1. For your safetyGeneral Assembly Safety instructionsDehumidified Air Dryer OperationMaintenance Safety instructionsDehumidified Air Dryer Safety instructions 2.2. For the safety of the devicesDehumidified Air Dryer Start-up 3. Start-up3.1.1. Key assignment STT 3.1. Control systemStart-up Indicator lamp messages STT 3.1.2. Flow chartStart-up SM2-6153.2.1. Operation statuses STT 3.2. Switching on the dryerStart-up STT 3.3. Viewing the software-version 3.4. PasswordsStart-up Start-up LoginLogout Edit3.5.1. Turning the devices on/off STT 3.5. Basic parametersTimer on/off Start-upHopper X on/off X = number of the drying hopper Start-upStart-up STT 3.5.2. Entering dryer valuesRegeneration Heater Act Used air ActReturn air cooler Target Start-upReturn air cooler Act Start-up STT 3.5.3. Entering hopper valuesHopper entry X Target Hopper entry X ActGranules target % = C Start-upGranules act. C e.g. valve block moved in/moved out/error STT 3.5.4. Observing processing statusStart-up Start-up STT 3.5.5. Setting date and timeDate TimeStart-up STT 3.5.6. Viewing/changing language and contrastContrast LanguageStart-up STT 3.5.7. Changing parametersSelect ”Parameters” Run on time drying blower --300 secStart-up STT 3.5.8. Setting the timerXX ON 00 00 OFF 00 00 XX = day Mo-Su Start-up STT 3.6. Starting continuous operationSelect ”Main menu” Start-up STT 3.7. Viewing system runtimeSelect ”System runtime” System runtimeSwitch off the dryer at the main switch STT 3.8. Switching the dryer offDisconnect the power supply Start-upError and error correction 4. Error and error correctionDehumidified Air Dryer Failures must be repaired immediately LED “ALARM” Error and error correctionDehumidified Air Dryer Dehumidified Air Dryer Error and error correctionView Dehumidified Air Dryer Error and error correctionNumber Total messagesDehumidified Air Dryer Error and error correctionOverflow Overflow warning On/OffPLC = SPS Battery is Empty Error and error correctionMain Switch is Off A Safety Temperature Limiter has been ActivatedExcess Temperature Regeneration Heater Error and error correctionInsufficient Temperature Regeneration Heater Error Bypass FlapTemperature Measurement Drying Heater Defective Error and error correctionExcess Temperature Drying Heater Insufficient Temperature Drying HeaterTemperature Measurement Granules Defective Hopper Error and error correctionExcess Temperature Granules Hopper Valve Error HopperMaintenance 5. MaintenancePlease observe the maintenance schedule MaintenanceMaintenance STT 5.1. Maintenance intervalsMaintenance STT 5.2. Cleaning/renewing the air filtersReturn air filter MaintenanceRegeneration air filter MaintenanceRe-installthe cleaned/new filter mat MaintenanceFilter of the electrical cabinet Remove the lid of the filterMaintenance STT 5.3. Tensioning the V-beltsRemove the protective grid of the blower position Maintenance5.4. Disposing of the drying agent 5.5. Servicing the accessoriesMaintenance Maintenance 5.6. Changing the battery of the control systemStore backup batteries in a dry and cool place MaintenanceOrder number battery SM2-615Maintenance STT 5.6.1. Resetting the control valuesFunctional description 6. Functional descriptionDew point dependent regeneration switch optional STT 6.1. DryerFunctional description Functional description STT 6.2. Drying hopper optionalFunctional description STT 6.3. Return air cooler optional6.5. Automatic motor flaps optional STT 6.4. Hopper heaters optionalFunctional description Transport, Assembly and Storage 7. Transport, Assembly and StorageDehumidified Air Dryer Transport, Assembly and Storage Dehumidified Air Dryer 7.1. Transport and Packingwith a fork lift truck Dehumidified Air Dryer Transport, Assembly and Storagewith a workshop crane Transport with a workshop crane SM2-6157.3. Storage Dehumidified Air Dryer 7.2. AssemblyTransport, Assembly and Storage Assembly instructions 8. Assembly instructionsDehumidified Air Dryer Assembly instructions 8.2. Connection of the air coolers optionalDehumidified Air Dryer Assembly instructions Dehumidified Air Dryer 8.3. Electrical connectionTechnical Data 9. Technical DataBasic Equipment Optional EquipmentDimension sheet Technical DataSM2-615 Spare parts list 10. Spare parts listPos. ID-numberDescription Spare parts listPos. ID-numberDescription Spare parts listSpare parts list 10.1. Switching Cabinet and Operating UnitAccessories Return air coler optionalElectrical manual 11. Electrical manualDehumidified Air Dryer Accessories 12.AccessoriesDehumidified Air Dryer SM2-615Sterling Material Processing Accessories Entering values on the OP02/01GB Procedure 3.3Entering ValuesGeneral Operation StepGeneral Operation 3.3.1Entering Numerical ValuesException Procedure 3.3.2Entering Alphanumeric ValuesGeneral Operation StepGeneral Operation ProcedureStep Procedure 3.3.3Entering Symbolic ValuesGeneral Operation StepSterling Material Processing Accessories Flap control with Fuzzy-Logic10/00GB Control unit “flap” Flap control with Fuzzy-Logic10/00GB