Sterling SDA 1000-5100 Controls, Controller Description and Operation, Switches, Indicator Lights

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Chapter 4: Controls

4-1 Controller Description and Operation

Identifying Control Panel Indicator Lights and Switches for the Standard Controller

Switches

System OFF/ON/START Switch. This switch energizes or de-energizes control power to the indicator panel and starts the dryer. (The controller can be energized without the dryer running.)

Indicator Lights

Alarm Light. This feature works in conjunction with the alarm horn to warn the operator of a high bed safety temperature, a regeneration heater fault, or a blower failure. This warning is reset by pressing the alarm silence button.

Process Air Temperature Controller

Our dryers use a microprocessor-based PID temperature controller for maintaining process air temperature. The controller is a modular, self-contained unit that can be removed from the mounting housing. All parameters except for the process air set point are factory set and adjusted; normally, no field adjustment to the internal controls is necessary.

Figure 11: Typical Process Air Temperature Controller

PV

SV

Large Dehumidifying Dryers

Controls

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Image 27

Contents SDA Large Dehumidifying Dryers With AP0 Controls If the Shipment is Not Complete Shipping InfoUnpacking and Inspection Event of Shipping DamageWarranty Returns ReturnsCredit Returns Table of Contents Operation Dryer Identification Serial Number Tag Technical Assistance Safety How to Use This ManualSafety Symbols Used in this Manual Wear Safety Glasses and Work Gloves Dryer Safety Tags DescriptionResponsibility General ResponsibilityOperator Responsibility Maintenance Responsibility Reporting a Safety Defect Functional Description Models Covered in This ManualGeneral Description Regeneration Cycle Process/Regeneration CycleSequence of Operation Controller Screen Descriptions Controller DescriptionStandard Features Mechanical FeaturesElectrical Features Options Closed-Loop RegenerationProcess Aftercooler Recommended Temperature Settings Process Air Dust CollectorMaterial Overdrying Protection Electrical Options Mechanical OptionsFail Safe Operation Safety Devices and InterlocksSafety Circuit Standards Safety Device Lock-OutsPage Making Electrical Connections Mechanical InstallationUncrating the Equipment Rigging and Placing UnitChecking Blower Rotation Checking for Proper Blower RotationDryer/Drying Hopper Process Air Connections Making Dryer/Drying Hopper Process Air ConnectionsAftercooler Components & Flow Rates Connecting Aftercooler/Precooler Cooling Water OptionalDrying Hopper Air Trap Using the Drying Hopper Air TrapControls SwitchesIndicator Lights Process Air Temperature ControllerLights in the Operation Indicator Section when Lit when Control Output 1 is on. The Out1Lit when Control Output 2 is on. Not used Indicator Name DescriptionE5CN Operating Parameters Setting the Process Air TemperatureTuned prior to dryer startup Adjustment Level Indicator Name DescriptionON, OFF Entering Operating Parameters to Select ModesSetting the High Dew Point Alarm Process Air Dew Point DisplayOptional Redundant Safety Controller Display Setting the Redundant Safety ControllerWatlow Operating Parameters Manf. setting Pre-Startup Checks Auto-Tuning the DryerOperation Initial Start-upDryer Operation Procedures Page Material Miser OFF Press + to Enable Alarm Display Messages Shutting Down the Dryer Auto-Tuning the DryerMaintenance Maintenance SchedulePhotocopy this page for your maintenance records Cleaning or Replacing the Process Air Filters Preventative MaintenanceCalibrating the Dirty Filter Alarm Cleaning or Replacing the Regeneration FilterChecking the Dewpoint Control System Corrective Maintenance Symptoms of Worn Out DesiccantReplacing the Desiccant Replacing the Process Heater Electric Dryers Desiccant Tower AssemblyReplacing the Regeneration Heater Electric Dryers Process Heater Box AssemblyRegeneration Heater Box Assembly Troubleshooting Basic TroubleshootingIntroduction Large Dehumidifying Dryers Troubleshooting Alarms Alarm DescriptionsAlarm Alarm Description Alarm Effect Code Determining Temperature Controller Errors or Sensor Errors Using a ThermocoupleUsing a Platinum Resistance Thermometer Appendix WarrantyTechnical Specifications Aftercooler Design SpecificationsAnnex B Information Drawings and Diagrams Optional dryer dust collector Spare Parts List Level 3 Mechanical Components Located on back of Dryer Dryer Identification Serial Number TagParts and Service Department Sales Department Service DepartmentTechnical Assistance Parts Department