Emerson 20/20 service manual Photochopper

Page 73

Section 14 • Slide Calibration

4.From the main screen select the Menu button.

5.On the menu screen select the Slide Calibration but- ton. When the “Slide Valve Calibration” screen appears, then you can safely connect the Power Cable (Yellow TURCK cable) and the Position Transmitter Cable (Gray TURCK cable) to the Capacity motor. Press “+” or “-” to move the slide valves to check the rotation. (See Table 1 below for proper shaft rotation). If for any reason the “+” or “-” command on the panel does not correspond to the slide increase or decrease, swap the blue & brown wires of the Yellow TURCK cable in the control panel to reverse the rotation of the motor.

CAUTION

DO NOT CONTINUE TO ENERGIZE THE ACTUATOR MOTOR AFTER THE SLIDE HAS REACHED THE MECHANICAL STOP. Doing so may cause mechanical damage to the motor or shear the motor shaft key. When the slide has reached the mechanical stop position, press the button in the center of the photochopper to release the brake, and thereby

release the tension on the actuator motor.

6.Quickly press and release the BLUE CALIBRATION BUTTON on the ACTUATOR motor once. This instructs the ACTUATOR motor to enter the calibration mode. The red LED on the actuator control board will begin flash- ing. Use the “-” button on the Vission 20/20 panel to drive the capacity slide to its minimum mechanical stop position.

This will be apparent by a slowing of the motor rotation and a winding sound from the actuator motor. When you hear the motor wind-up, release the “-” button.

Then use the “+” button to pulse the motor so that the capacity slide is “just off” of its minimum position and there is no tension on the motor shaft.

7.Quickly press and release the BLUE CALIBRATION BUTTON on the ACTUATOR motor once. The red LED will now flash at a slower rate. This now instructs the ACTUATOR motor that this point is the minimum slide position. This point will correspond to 0 volts AFTER the ACTUATOR calibration procedure is completed.

8.Use the “+” button on the Vission 20/20 to drive the capacity slide to its maximum mechanical stop position. This will be apparent by a slowing of the motor rotation and a winding sound from the actuator motor. When you hear the motor wind-up, release the “+” button.

9.Quickly press and release the BLUE CALIBRATION BUTTON on the ACTUATOR motor once. The RED LED will stop flashing. This now instructs the ACTUATOR mo- tor that this point is the maximum slide position. This point corresponds to 5 volts. The ACTUATOR calibration procedure is completed.

Now the Capacity Channel is automatically calibrated based on the calibration settings made to the actuator.

Figure 14-2. Photochopper

CAUTION

Do not over tigten screws. Failure to comply may

result in damage to equipment.

.

10.Gently lower the plastic cover to where it contacts the base and O-ring seal. After making sure that the cover is not binding, gently tighten the four # 10 Phillips screws.

11.Repeat the same procedure for the Volume slide motor.

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 Proper Wiring Sizing Installation RecommendationsVoltage Source Grounding DC signalsMixing Voltages 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 OutputsOil Control Load AnticipatingLiquid Injection 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 Operation Volume Slide Valve PotentiometerSlide Valve Actuator Calibration for Optical Style Motors 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 Units ConfigurationTime & Date Touchscreen CommunicationsAnti-Recycle 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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