Emerson 20/20 service manual User Access, Apply

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Section 22 • User Access

Overview

The user access screen is where all operators go to log in. In the Vission 20/20, each screen has a security level, whereby allowing operators, technicians and/or supervi- sors the ability to modify different sets of setpoints. The Vission 20/20 has four levels of security, see Figure 22-1. User Access Screen - Login.

•Level 0 – This is the default level with no operator logged in. The function available to the operator are very limited and basically only allows someone to start and stop the compressor.

•Level 1 – This is a technician level of access. All the setpoints needed to operate and adjust the perfor- mance of the compressor will be available to an op- erator with this level of access.

•Level 2 – This is a supervisor level of access. Setpoints that require a higher level of knowledge such as

calibrating instrument will be available to an opera- tor with this level of access.

•Level 3 – This is considered a contractor level of ac- cess. The setpoints available at this level have the most potential of causing damage to the compressor. Therefore, this access is restricted to those only with the highest level of competence.

The user access screen is also where new operators are added, changed or removed. Any operator can add an additional operator but can only add an operator of less- er or equal security level.

Apply

When selected, applies the user name and password for security evaluation. If the User name and password matches an existing user then the operators name will be applied to the lower status bar and the operator will be given access to screens of equal security level.

Figure 22-1. User Access Screen - Login

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

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Contents Vission 20/20 micro-controller Page Table of Contents Digital I/O Board Layout Top Status Bar TOCCompressor Sequencing Event List Data Backup List of Tables and Figures END of TOC How to Use This Manual Compressor Amperage Load Limiting Operational Flow ChartsRequirements to Start Compressor Critical Compressor Run Logic at Compressor StartOperational Flow Charts 2 Voltage Source Installation RecommendationsProper Wiring Sizing Mixing Voltages DC signalsGrounding Correct Transformer Wiring Method Wiring MethodsBest Practices Overview Hardware ArchitectureDigital Input/Output I/O Board Description Type Digital I/O 1Refer to -2. Analog Inputs Motor Current Analog InputsAnalog Inputs 1 Digital I/O 2Digital & Analog I/O Boards Layout Analog OutputsDigital I/O Board Layout Analog Inputs 2Digital Output Board Layout Digital Output BoardsDigital Input Board Layout Digital Input BoardsDigital Input-Output Board Layout Digital In-Out BoardsAnalog Input Board Layout Analog Input BoardsAnalog Input Jumper Tables Channel SignalJP-13 JP-14 JP-15 JP-31 Analog Output Board Layout Analog Output BoardsMain Screen Main ScreenTop Status Bar Parameter Bar Unit Start Pop-Up Window Bottom Status Bar Splash Screen Navigation Buttons Menu ScreenMenu Screen Pulse Proportional Control Compressor ControlProportional Band & Setpoint Auto-CycleVFD One-Step Control Method Variable Frequency Drive VFDPumpdown Control Pulldown Control Capacity Slide Triggered Outputs Control ModeVolume Slide Position Offset Stop Load and Force UnloadLiquid Injection Load AnticipatingOil Control Compressor Control Alarms and Trips Setpoints Alarms and TripsAlarms and Trips Compressor Inhibits Safety Failure MessagesFalse Start Timer Setpoints TimersOil Separator Level #2 Safety Trip Delay Timers Blank Scheduling Setpoint Compressor SchedulingCompressor Scheduling Pressure Control Setpoints Compressor SequencingCFM Equipment List 10 4 / Blank Condenser Control Setpoint Condenser ControlStep Control Step Control Screen VFD Settings11 4 / Blank Digital Outputs Service OptionsAnalog Outputs Instruments Calibration Pressure and Temperature InputsRemote Capacity Motor CurrentAnalog Inputs 13 4 / Blank Capacity Slide Valve Potentiometer Slide CalibrationSlide Valve Actuator Calibration for Optical Style Motors Volume Slide Valve PotentiometerSlide Valve Operation Photochopper Command Shaft Rotation Required By Actuator Command Shaft RotationSlide Valve Troubleshooting Guide 1 Slide Valve Troubleshooting GuideSlide Valve Troubleshooting Guide 2 LED Blink Codes and Troubleshooting Guide 1 Slide Valve Actuator Troubleshooting Guide Blink CodePleted. The actuator will not move while this error code LED Blink Codes and Troubleshooting Guide 2Chart Operation Trend ChartTrend Data Storage Trend Setup Screen Setup15 4 / Blank Event list Columns Event List16 2 / Blank Input/Output Screen Input / Output17 2 / Blank Digital Inputs Auxiliary Input / OutputDigital Outputs Control 18 4 / Blank Time & Date ConfigurationUnits Anti-Recycle CommunicationsTouchscreen Model & Refrigerant Restart On Power FailureCompressor Sequencing LanguageOptional Function Selection Compressor ControlMotor Current Device Condenser ControlOil Pump Oil CoolingDigital Inputs Analog Inputs Analog Outputs Configuration 19 10 / Blank Save / Load Data BackupData Backup Migrate Factory Reset20 4 / Blank Checklist MaintenanceLog ChartApply User AccessManage Accounts LoginScreen Security Levels Security Access Levels22 4 / Blank Help Screen Screen FeaturesVersion Pop-Up Screen Twin Screw Control Screen Twin Screw ControlOperation Cool Compression Control Screen Cool Compression ControlCool Compression Control Functions Screen Control FunctionsOperational Differences from Single Screw Auto Load TimerCool Compression Control

20/20 specifications

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In summary, Emerson 20/20 stands out as a powerful tool for organizations seeking to harness their operational data effectively. With its advanced analytics capabilities, seamless integration, customizable visualization, and scalable design, it offers a comprehensive solution to optimize industrial performance and support data-driven decision-making. As businesses continue to navigate the complexities of modern operations, Emerson 20/20 provides the insights necessary to stay competitive and responsive to changing market demands.
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