Sterling 882.00295.00 specifications Controls, Controller Description

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Chapter 4: Controls

4-1 Controller Description

The AP1 control package uses a PLC with a touch screen interface to control the operation of the dryer. See for descriptions of each screen.

Figure 11: Controller Screen Descriptions

Main Menu. The main navigational screen. Used to access status and set-up screens.

Dryer Status Screen. Displays actual dryer temperature and temperature setpoint, as well as actual dewpoint.

Dryer Menu. Navigational screen for dryer status, setup and other options

Dryer Setup Screen. Used to set high and low temperature alarms. Also used to enable or disable closed-loop drying. Closed-loop drying is not available on single blower dryers.

Over-Dry Protect Screen. Used to enable/disable and configure material overdrying protection. Also displays actual return temperature.

Autotune Screen. Used to start and stop autotuning. Also displays PID settings.

Dew Pt Setup Screen. Used to configure dewpoint alarms. Also used to enable/disable dewpoint switching.

Autostart Screen. Used to configure the autostart timer. System Menu. Navigational screen for system settings.

Setup Screen. Used to configure alarm duration and passwords. Set Clock Screen. Used to configure the system clocks.

Hour Meter Screen. Used to view and reset the hour meters for the dryer, machine blower, and dryer blower.

I/O Status Screen. Used to view the status of inputs and outputs used by the dryer’s controller.

System Backup. This screen is used to save and restore the dryer settings.

Service Menu. This screen is password protected and meant for the manufacturer’s service personnel use only.

Alarm History Screen. Used to scroll through the alarm history.

Large Dehumidifying Dryers

Controls

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Contents SDA 1000-5100 Series Large Dehumidifying Dryer AP-1 Control Event of Shipping Damage Shipping InfoUnpacking and Inspection If the Shipment is Not CompleteReturns Credit ReturnsTable of Contents Operation Large Dehumidifying Dryers How to Use This Manual SafetySafety Symbols Used in this Manual Dryer Safety Tags Description General Responsibility ResponsibilityOperator Responsibility Maintenance Responsibility Reporting a Safety Defect Models Covered in This Manual Functional DescriptionGeneral Description Process/Regeneration Cycle Sequence of OperationMechanical Features Standard FeaturesAuto Start Timer Electrical FeaturesDewpoint Extend OptionsClosed-Loop Regeneration Drawings and Diagrams Optional dryer dust collector Process Aftercooler Aftercooler Design SpecificationsProcess Air Dust Collector Process Air Dust Collector Recommended Temperature Settings Material Overdrying ProtectionElectrical Options Mechanical OptionsController Options Safety Device Lock-Outs Safety Devices and InterlocksSafety Circuit Standards Fail Safe OperationPage Dimensions and Specifications Denotes availability Mechanical Options Denotes availabilityDenotes availability Rigging and Placing Unit Mechanical InstallationUncrating the Equipment Making Electrical ConnectionsMaking Gas Line Connections Gas-Fired Models Only DescriptionChecking for Proper Blower Rotation Checking Blower RotationMaking Dryer/Drying Hopper Process Air Connections Dryer/Drying Hopper Process Air ConnectionsProcess Air Heater on Drying Hopper Large Dehumidifying Dryers Mechanical Installation Connecting Aftercooler/Precooler Cooling Water Optional Aftercooler Components & Flow RatesUsing the Drying Hopper Air Trap Drying Hopper Air TrapControls Controller DescriptionProcess Air Temperature and Conveying Process Controller Dryer Status Screen Startup ScreenIdentifying Controller Screens Dryer Alarms Help System LOG OFFMain Menu Screen Setting Values Dryer Menu Dryer Status Dryer Setup Over DRY Protect Alarms Auto TuneAuto Start Main Menu Dryer Setup Screen 3 Dryer Setup Screen 2Dryer Setup Screen 4 Overdry Protection Screen 1 Overdry ProtectionOverdry Protection Screen 2 Autotune Alarm History ScreenProcess AutoTune Screen Autostart Timer Screen DEW Point SetupDew Point Setup Screen Auto StartHelp Menu Screen System Setup SET Clock Hour Meters Alarm History StatusHelp Menu System MenuSystem Setup Screen System Backup Service Menu Main Menu System SetupLOW Level Detection Setup Clock Menu Screen Autostart Clock ScreenInput Status Screen Hour Meter ScreenInput Status Output StatusService System Backup ScreenService Menu Screen Alarm Screens Redundant Safety Controller Display Alarm Screen ExampleSetting the Redundant Safety Controller Always put your set point to 30F above set pointLarge Dehumidifying Dryers Controls Operation Start-upUsing the Dryer Status Screen Alarms Alarm DescriptionsShutdown Maintenance Schedule MaintenancePhotocopy this page for your maintenance records Preventative Maintenance Cleaning or Replacing the Process Air FiltersCleaning or Replacing the Regeneration Filter Calibrating the Dirty Filter AlarmChecking the Dewpoint Control System Symptoms of Worn Out Desiccant Corrective MaintenanceReplacing the Desiccant Desiccant Tower Assembly Replacing the Process Heater Electric DryersProcess Heater Box Assembly Replacing the Regeneration Heater Electric DryersRegeneration Heater Box Assembly Basic Troubleshooting TroubleshootingIntroduction Large Dehumidifying Dryers Troubleshooting Using a Thermocouple Determining Temperature Controller Errors or Sensor ErrorsUsing a Platinum Resistance Thermometer Warranty AppendixTechnical Specifications Annex B InformationSpare Parts List Level 3 Mechanical Components Dryer Identification Serial Number Tag Located on back of DryerParts Department Service DepartmentTechnical Assistance Sales Department

882.00295.00 specifications

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