Emerson 20/20 service manual Compressor Sequencing

Page 5

Table of Contents

Section Title

Section Number

Section 10 • Compressor Sequencing

 

Overview

10-1

Pressure Control Setpoints

10-1

Figure 10-1. Compressor Sequencing Screen

10-1

Section 11 • Condenser Control

 

Overview

11-1

Condenser Control Setpoint

11-1

Figure 11-1. Condenser Control Screen

11-1

Step Control

11-2

Figure 11-2. Step Control Screen

11-3

VFD Settings

11-3

Section 12 • Service Options

 

Overview

12-1

Digital Outputs

12-1

Figure 12-1. Service Options Screen

12-1

Analog Outputs

12-2

Section 13 • Instruments Calibration

 

Overview

13-1

Pressure and Temperature Inputs

13-1

Figure 13-1. Instruments Calibration Screen

13-1

Motor Current

13-2

Remote Capacity

13-2

Analog Inputs

13-2

Section 14 • Slide Calibration

 

Overview

14-1

Capacity Slide Valve Potentiometer

14-1

Figure 14-1. Slide Calibration Screen

14-1

Volume Slide Valve Potentiometer

14-2

Slide Valve Operation

14-2

Slide Valve Actuator Calibration for Optical Style Motors

14-2

Figure 14-2. Photochopper

14-3

Command Shaft Rotation

14-4

Table 14-1. Command Shaft Rotation Required By Actuator

14-4

Slide Valve Troubleshooting Guide

14-5

Table 14-2. Slide Valve Troubleshooting Guide

14-5

Slide Valve Actuator Troubleshooting Guide Blink Code

14-7

Table 14-3. LED Blink Codes and Troubleshooting Guide

14-7

Section 15 • Trend Chart

 

Overview

15-1

Chart Operation

15-1

Figure 15-1. Trend Chart Screen

15-1

Trend Data Storage

15-2

Setup

15-3

Figure 15-2. Trend Setup Screen

15-3

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 Requirements to Start Compressor Operational Flow ChartsCritical Compressor Run Logic at Compressor Start Compressor Amperage Load LimitingOperational 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 Volume Slide Position Offset Control ModeStop Load and Force Unload Capacity Slide Triggered OutputsLiquid 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 Compressor Sequencing Restart On Power FailureLanguage Model & RefrigerantOptional Function Selection Compressor ControlOil Pump Condenser ControlOil Cooling Motor Current DeviceDigital 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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