Redundant Safety Controller Display | Sterling SDAA 25-100 specs

Redundant Safety Controller Display

Optional

The Redundant Safety Controller limits the process air temperature from exceeding the upper temperature range set by the E5CN Temperature Controller. Standard dryers use a microprocessor-based controller for limiting the process air temperature. The controller is a modular, self-contained unit removable from the mounting housing. All parameters are factory set and adjusted; normally, no field adjustment to the internal controls are necessary.

Figure 8: Typical Redundant Safety Controller Display

Setting the Redundant Safety Controller

The Redundant Safety Controller alarm setting is changed by pressing the up and down keys to input the alarm value. The upper display reading indicates the Process Value, while the lower display indicates the High Point Setting alarm value. The factory setting for the High

Point Alarm Value (L1-hi) is 150°F (-23°C).

Restoring the WATLOW Redundant Safety Controller to Factory Setup

If the preset parameters on the controller have been tampered with and it no longer functions properly, call the Service Department. This controller is not meant to be modified.

WATLOW Operating Parameters

The WATLOW controller has only one mode selection; ALARM.

The factory sets the security level to protect the critical parameters from being accidentally changed. Below is an explanation of the modes you will have access to and the manufacturer default settings.

Dehumidifying Dryers

Chapter 4: Operation

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Sterling SDAA 25-100 specifications Redundant Safety Controller Display, Setting the Redundant Safety Controller

Contents

Sdaa 25-100 15-60 cfm Dehumidifying Dryers Shipping Information Table of Contents Maintenance Service Department Sales Department Contract Department Safety How to Use This ManualSafety Symbols Used in this Manual Wear Safety Glasses and Work Gloves General Responsibility Responsibility Remember Operator Responsibility Reporting a Safety Defect Maintenance Responsibility Dehumidifying Dryers Safety Functional Description Models Covered in This ManualGeneral Description What is desiccant? Standard FeaturesMechanical Features Electrical Features Safety Devices and Interlocks Controller FeaturesOptions Safety Circuit Standards Safety Device Lock-OutsFail Safe Operation Installation Uncrating the EquipmentRigging and Placing the Dryer Machine-Mount Dryer Dimensions Floor-Mount Dryer Dimensions Recommended Dryer Lifting Hardware Suggested Lift Rigging for Cart Mounted Dryers Suggested Lift Rigging for Machine Mounted Dryers Electrical Connections Three-Phase Models Setup ProceduresChecking for Proper Blower Rotation Making Dryer/Drying Hopper Process Air Connections Installing Water Lines Hose and Hose Clamp Drying Hopper Air Trap ConsiderationsOptional Aftercooler Initial Start-up Auto-Tuning the DryerPre-Startup Checks Starting Up the Dryer Shutting Down the Dryer Start-up Operation Switches Indicator LightsController Description and Operation Process Air Temperature Controller Lit when Control Output 1 is on. The Out1Lit when Control Output 2 is on. Not used Lights in the Operation Indicator Section when Indicator Name DescriptionIdentifying Temperature Controller Keys Setting the Process Air Temperature E5CN Operating Parameters Tuned prior to dryer startup Adjustment Level Indicator Name Description ON, OFF Entering Operating Parameters to Select Modes Setting the High Dew Point Alarm Process Air Dew Point DisplayOptional Redundant Safety Controller Display Setting the Redundant Safety ControllerWatlow Operating Parameters Mode Parameter Setting range Default Manf. setting Dryer Operation Procedures Model Heating Cooling 15 cfm 30 cfm 60 cfm Page Controller Operation With Optional Alarm Horn & Reset Button Page Alarm Display Messages Shutting Down the Dryer Auto-Tuning the Dryer Maintenance Preventative Maintenance SchedulePhotocopy this page for your maintenance records Recommendations for Cleaning and Replacing Filters Preventative MaintenanceServicing Process Air Filters Vacuuming Servicing the Dew Point Monitor Cleaning with Compressed Air Symptoms of Worn Desiccant Corrective Maintenance Replacing Worn Desiccant First AID Consult local disposal regulations for more information Replacing the Process Heater Procedures Troubleshooting Problem Possible cause Corrective actionIntroduction Problem Possible cause Corrective action Check resin manufacturer’s data Determining Temperature Controller Errors or Sensor Errors Using a ThermocoupleUsing a Platinum Resistance Thermometer Warranty Specifications WarrantyWarranty Restrictions Appendix Warranty Liabilities Optional ComponentsCustomer Responsibilities Annex B Information Technical Specifications Aftercooler Design Specifications Drawings and Diagrams Spare Parts List Level 2 & 3 Spare Parts List Electrical & Mechanical Warranty Returns Safety Tag InformationDryer Safety Tags Returned Material Policy Located on back of Dryer Dryer Identification Serial Number Tag Technical Assistance Service DepartmentParts Department Sales Department