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Emerson 20/20 service manual 15 4 / Blank

Models: 20/20

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Vission 20/20 • Operation and Service Manual •Vilter/Emerson • 35391SC 1.8.5153

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Emerson 20/20 service manual 15 4 / Blank

Contents

Vission 20/20 micro-controller Page Table of Contents TOC Digital I/O Board Layout Top Status BarCompressor Sequencing Event List Data Backup List of Tables and Figures END of TOC How to Use This Manual Critical Compressor Run Logic at Compressor Start Operational Flow ChartsRequirements to Start Compressor Compressor Amperage Load LimitingOperational Flow Charts 2 Proper Wiring Sizing Installation RecommendationsVoltage Source Grounding DC signalsMixing Voltages Wiring Methods Correct Transformer Wiring MethodBest Practices Hardware Architecture OverviewDigital Input/Output I/O Digital I/O 1 Board Description TypeAnalog Inputs Refer to -2. Analog Inputs Motor CurrentDigital I/O 2 Analog Inputs 1Analog Outputs Digital & Analog I/O Boards LayoutAnalog Inputs 2 Digital I/O Board LayoutDigital Output Boards Digital Output Board LayoutDigital Input Boards Digital Input Board LayoutDigital In-Out Boards Digital Input-Output Board LayoutAnalog Input Boards Analog Input Board LayoutChannel Signal Analog Input Jumper TablesJP-13 JP-14 JP-15 JP-31 Analog Output Boards Analog Output Board LayoutMain Screen Main ScreenTop Status Bar Top Status BarParameter Bar Parameter BarUnit Start Pop-Up Window Bottom Status Bar Bottom Status BarSplash Screen Splash ScreenMenu Screen Navigation ButtonsMenu Screen Compressor Control Pulse Proportional ControlAuto-Cycle Proportional Band & SetpointVariable Frequency Drive VFD VFD One-Step Control MethodPumpdown Control Pulldown Control Stop Load and Force Unload Control ModeVolume Slide Position Offset Capacity Slide Triggered OutputsOil Control Load AnticipatingLiquid Injection Compressor Control Alarms and Trips Alarms and Trips SetpointsAlarms and Trips Safety Failure Messages Compressor InhibitsFalse Start Timers Timer SetpointsOil Separator Level #2 Safety Trip Delay Timers Blank Compressor Scheduling Scheduling SetpointCompressor Scheduling Compressor Sequencing Pressure Control SetpointsCFM Equipment List 10 4 / Blank Condenser Control Condenser Control SetpointStep Control VFD Settings Step Control Screen11 4 / Blank Service Options Digital OutputsAnalog Outputs Pressure and Temperature Inputs Instruments CalibrationMotor Current Remote CapacityAnalog Inputs 13 4 / Blank Slide Calibration Capacity Slide Valve PotentiometerSlide Valve Operation Volume Slide Valve PotentiometerSlide Valve Actuator Calibration for Optical Style Motors Photochopper Command Shaft Rotation Command Shaft Rotation Required By ActuatorSlide Valve Troubleshooting Guide Slide Valve Troubleshooting Guide 1Slide Valve Troubleshooting Guide 2 Slide Valve Actuator Troubleshooting Guide Blink Code LED Blink Codes and Troubleshooting Guide 1LED Blink Codes and Troubleshooting Guide 2 Pleted. The actuator will not move while this error codeTrend Chart Chart OperationTrend Data Storage Setup Trend Setup Screen15 4 / Blank Event List Event list Columns16 2 / Blank Input / Output Input/Output Screen17 2 / Blank Auxiliary Input / Output Digital InputsDigital Outputs Analog Outputs Control18 4 / Blank Units ConfigurationTime & Date Touchscreen CommunicationsAnti-Recycle Language Restart On Power FailureCompressor Sequencing Model & RefrigerantCompressor Control Optional Function SelectionOil Cooling Condenser ControlOil Pump Motor Current DeviceDigital Inputs Analog Inputs Analog Outputs Conﬁguration 19 10 / Blank Data Backup Save / LoadData Backup Factory Reset Migrate20 4 / Blank Maintenance ChecklistChart LogUser Access ApplyLogin Manage AccountsSecurity Access Levels Screen Security Levels22 4 / Blank Screen Features Help ScreenVersion Pop-Up Screen Twin Screw Control Twin Screw Control ScreenOperation Cool Compression Control Cool Compression Control ScreenControl Functions Cool Compression Control Functions ScreenAuto Load Timer Operational Differences from Single ScrewCool Compression Control