Section 6 • Compressor Control Overview ............................... 6-1 Suction Pressure Control, Process Temperature Control, Process Pressure Control and Discharge Pressure Control ......................6-1 Auto-Cycle ............................. 6-2 TOC - 1 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Aftermarket Parts Contact Information ..................27-1 Vission 20/20 - Main Enclosure Electrical Components ................27-3 Vission 20/20 - Door Interior Components ..................... 27-5 Vission 20/20 - SBC Assembly......................... 27-7 TOC - 6 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Appendix D • Vission 20/20 Communication Table Vission 20/20 Communication Table ...................... D-1 Appendix E • Abbreviations used on the Vission 20/20 panel screen Abbreviations Table ..........................E-1 TOC - 7 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Figure 6-9. Compressor Control Screen - Oil Restriction Solenoid ............6-7 Figure 6-10. Compressor Control Screen - Rapid Cycling VFD Control ............ 6-8 Figure 6-11. Compressor Control Screen - Pumpdown/Pulldown Control ..........6-10 TOC - 8 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
• If your installation site has wire-ways or conduit trays, arate AC from DC, see Figure 2-4. dividers must be installed between the different voltages. Figure 2-3. Ground Wiring Figure 2-4. Mixed Voltage Wiring 2 – 2 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
• Each Vission 20/20 panel should have its own indi- vidual control transformer, see Figure 2-5 and Figure 2-6. Figure 2-5. Correct Transformer Wiring Method Figure 2-6. Incorrect Transformer Wiring Method 2 – 3 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
25 watts ( estimate– read the nameplate for exact load rating) 5. Add load values for panel heaters if used, and heat trace tape if used 2 – 4 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
Volume Index (VI) by energized. Once the slide valve reaches 100%, this moving the volume slide to a lower percentage, this output will not energize. 3 – 1 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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“on” setpoint minus the solenoid differential or when oil separator temperature is below the oil sepa- rator temperature override set-point. Figure 3-2. Liquid Injection #1 logic 3 – 2 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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If de-energized, the compressor put is de-energized. will shut down and issue a oil level #2 trip. Figure 3-3. Liquid Injection #2 logic 3 – 4 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
• Default signal is 4-20mA. Oil filter pressure trans- • Flexible analog inputs that can be configured to con- ducer range and calibration are set in the calibration trol, alarm or trip. screen. 3 – 6 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
• When Oil Flow Control option is selected from config- uration screen, Auxiliary Output #1 which is 4-20mA signal is used to control the opening percentage of Danfoss valve. 3 – 7 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
Instrument Calibration screen. The following illustrations show the Vilter default con- figurations for the Vission 20/20. Figure 3-4. Digital I/O Board Layout 3 – 8 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
The addresses are binary and therefore the address of a digital output board will either be address 1 (0001) or 2 (0010). Figure 3-5. Digital Output Board Layout 3 – 9 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
The addresses are binary and therefore the address of a digital input board can only be addressed as 3 (0011). Figure 3-6. Digital Input Board Layout 3 – 10 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
120VAC output is being produced or a 120VAC signal a digital output board will either be address 4 (0100) is detected. or 5 (0101). Figure 3-7. Digital Input-Output Board Layout 3 – 11 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
1-5 VOLT 0-10 VOLT 4-20 mA ICTD CHANNEL 4 SIGNAL JP-10 JP-11 JP-12 JP-30 Analog Input 4 0-5 VOLT 1-5 VOLT 0-10 VOLT 4-20 mA ICTD 3 – 13 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Position 3 = sends +5VDC (regulated) to “supply” terminal CHANNEL 8 SIGNAL JP-22 JP-23 JP-24 JP-34 JP-26 Analog Input 8 0-5 VOLT 1-5 VOLT 0-10 VOLT 4-20 mA ICTD ACTUATOR POTENTIOMETER 3 – 14 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
10 indicate the correct voltage of both the 5V DC and (1010). 24V DC power sources. Figure 3-9. Analog Output Board Layout 3 – 15 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
If you want to read the complete string, you can click on it, and it will appear superposed on the screen. Figure 4-1. Main Screen 4 – 1 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
Compressor trips are designed to protect the equipment and any personnel operating the equipment. Figure 4-2. Top Status Bar 4 – 2 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
If available, the buttons work to increase and decrease the volume slide position in the same manner as the capacity slide. Figure 4-3. Parameter Bar 4 – 3 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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• The motor box shows the motor current. desired capacity position. • The suction box shows the current suction Figure 4-4. Unit Start Pop-Up Window 4 – 4 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
User Access Button: • This button takes the operator to the login screen to create additional users or log in. Figure 4-5. Bottom Status Bar 4 – 5 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
• Displays the position of the capacity slide from 0% to compressor. 100%. Menu Button: • When pressed, navigates the operator to the menu screen. Figure 4-6. Splash Screen 4 – 6 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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• Displays the current status of Low VI Digital Output • This will be displayed only when the VI control meth- od is set as Step VI. Figure 4-7. Step VI Screen 4 – 7 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
Green Background while the ‘Off’ state for digital outputs will be displayed with an Orange Background Figure 4-8. SOI Solenoid Screen 4 – 8 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
Separator Level, Low VI, High VI & Remote Lock Out Digital Outputs. Please see Figures 4-9,4-10,4-11,4-12. Figure 4-9. Configurable Main Screen with Oil Pump and Oil Heater 4 – 9 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Section 4 • Main Screen Figure 4-10. Configurable Main Screen with SOI Solenoid and Oil Heater Figure 4-11. Configurable Main Screen with SOI Solenoid and Separator Level 4 – 10 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Section 4 • Main Screen Figure 4-12. Configurable Main Screen with Step VI Figure 4-13. Configurable Main Screen Default View 4 – 11 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
• Navigates to the timer screen where the operator can Service Options: set the various time related parameters. • Navigates to the service options screen where the Figure 5-1. Menu Screen 5 – 1 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Figure 5-2. Figure 5-2. Menu Screen with Remote Oil Cooler Enabled 5 – 2 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
The further the best operation. away the process variable is from the control setpoint, Figure 6-1. Compressor Control Screen - Suction Pressure Control 6 – 1 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
This will shut down the compressor and a Reset will be Psig and the deadband is set to 10% of 4 Psig. Making Figure 6-2. Compressor Control Screen - Process Temperature Control 6 – 2 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Enable: • Enables the Auto-cycle control. Uncheck the box to disable the Auto-cycle setpoints. Figure 6-3. Compressor Control Screen - Process Pressure Control 6 – 3 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Section 6 • Compressor Control Figure 6-4. Proportional Band & Setpoint Figure 6-5. Compressor Control Screen - Discharge Pressure Control 6 – 4 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
This check box cannot be unselected by the operator. step method but divides the control into four sections, Figure 6-6. Compressor Control Screen - VFD Settings Control 6 – 5 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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This setpoint should be set to the lowest value that Figure 6-7. VFD One-Step Control Method Figure 6-8. VFD Two-Step Control Method 6 – 6 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
Output will be turned OFF. If Compressor VFD RPM increases to 1805 RPM, then Oil Solenoid Digital Output will be turned ON. Figure 6-9. Compressor Control Screen - Oil Restriction Solenoid 6 – 7 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
If at any point changes are made to your application, details. configuration or equipment, you will need to consult a Figure 6-10. Compressor Control Screen - Rapid Cycling VFD Control 6 – 8 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
Pumpdown Stop Pressure. When the Pumpdown feature is enabled, the Pulldown checkbox is automatically grayed out. Similarly when Pulldown feature is enabled, the Pumpdown checkbox 6 – 9 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
And so forth. pulldown method used is to step the suction pressure down over a defined time interval. Figure 6-11. Compressor Control Screen - Pumpdown/Pulldown Control 6 – 10 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
0.25°F. Auto Cycle Start Pressure and Stop Pressure from the Suction Pressure setpoint. The Auto Cycle Start 6 – 11 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
SOI Solenoid when Oil Pump is not present. The SOI from the configuration screen. 6 – 12 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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No Oil Pump Pressure Ratio Setpoint. SOI Load Limit: • This setpoint defines the maximum value for the ca- pacity slide position when SOI Solenoid is ON.No Oil Pump 6 – 13 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
Force Unload: • When this value is reached, the capacity slide posi- tion will decrease until the variable reading is below this value. 6 – 14 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
• Defines the state of the digital output when the slide position is below the “Slide %” setpoint. The operator can choose between “N.O.” or “N.C.”. This setpoint 6 – 15 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
The dis- charge temperature can vary quite drastically forcing the PID algorithm to drastically adjust the motorized 6 – 16 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Liquid inj. Setpoint Figure 6-16. Compressor Control Screen - Liquid Injection & Dual Liquid Injection Control 6 – 17 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
Injection Feature. The Enable/Disable functionality of on Compressor Type & Compressor Model. this box depends on Selected Compressor Type and Model in the Configuration Screen. 6 – 18 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
• If this method is selected then there will be no vol- ume control for Twin Screw compressors. Figure 6-18. Compressor Control Screen - Fixed VI (Twin Screw) 6 – 20 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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• This setpoint defines the maximum slide position value (100%) for volume slide valve. The default value for Maximum VI is 5.0. Figure 6-19. Compressor Control Screen - Continuous VI (Twin Screw) 6 – 21 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
Warnings are always displayed as an orange banner on the bottom status bar. Figure 7-1 - Typical Status Banner Message Display 7 – 1 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
Digital AUX In 1-8 Active Digital AUX In 1-8 Active Digital AUX In 1-8 Active High / Low High / Low High / Low High / Low 7 – 10 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
Setpoints become active. The trip will be activated if the superheat temperature from start rises above the superheat temperature plus the Setpoint value. See Figure 7-5. High Superheat Rise Temp Trip Discharge Superheat Temperature > Discharge Superheat Start Temperature Offset 7 – 11 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
Emergency Stop Timer times out False Start False Start Motor Auxiliary Contact Fails to Open False Start False Start Motor Amperage > 20% Maximum Amps 7 – 12 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
See Figure 7-6. High Motor Current Alarm High Motor Current Trip Motor Current > High Motor Current > High Motor Current Alarm Motor Amps Trip 7 – 13 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
Oil Level #1 or #2 Trip Oil Level Float Switch #1 Oil Level Float Switch #1 or or #2 De-energized when #2 De-energized compressor is starting 7 – 14 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Safety timer values are set on the Timer menu screen. See Figure 7-8. Start Low Oil Pressure Trip Oil Pressure < Start Low Oil Pressure Stage 1 or Stage 2 Trip 7 – 15 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Low Oil Separator Temp Alarm Trip Oil Separator Temperature Oil Separator Temperature < Low Oil Separator Run < Low Oil Separator Run Temperature Alarm Temperature Trip 7 – 16 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Process Pressure Alarm Process Pressure Alarm Process Pressure Trip Setpoint #1 or #2 Setpoint #1 or #2 Setpoint #1 or #2 Setpoint #1 or #2 7 – 17 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Low Run Pressure Ratio Low Run Pressure Ratio Alarm Trip Run Pressure Ratio < Low Run Pressure Ratio < Low Run Pressure Ratio Alarm Run Pressure Ratio Trip 7 – 18 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Low Suction Superheat Low Suction Superheat Alarm Trip Suction Superheat Suction Superheat Temperature < Low Temperature < Low Suction Superheat Suction Superheat Temperature Alarm Temperature Alarm 7 – 19 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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This message will appear if condition exists following any shutdown. See Figure 7-5. Volume Position Trip Volume Slides failing to un- load < 5% during Volume Unload Cycle 7 – 20 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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• Delays require the condition to occur for the speci- • This is the length of time in which the normal Low fied amount of time. Figure 8-1. Timers Screen - Page 1 8 – 1 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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(the oil level switch is standard on all liquid injection units and optional on all others). 8 – 2 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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This timer ig- Ratio safety is active. nores that sudden inrush of current for the specified Figure 8-2. Timers Screen - Page 2 (Cool Compression) 8 – 3 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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• This timer bypasses the SOI Low Pressure Ratio Safety set-points during start-up. After the timer expires, the SOI Low Pressure Ratio safety is active. Figure 8-3. Timers Screen - Page 2 (SOI Solenoid) 8 – 4 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Start Oil Pressure Stage 2 Pressure Trip Setpoint. This Setpoint is configurable only when No Pump is selected in Configuration Screen. Figure 8-4. Timers Screen - Page 2 (No Oil Pump) 8 – 5 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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“Unscheduled” if operator does not want to use all not in order, invalid events are marked with caution 4 events per day. Figure 9-1. Compressor Scheduling Screen 9 – 1 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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(which makes control modes selected in com- pressor scheduling screen invalid), then the feature will get disabled automatically and indication will be sent to operator to correct the setting. 9 – 2 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Devices List Page. This contains names of all the compressors in the network commu- nicating with the Master compressor. The equipment Figure 10-1. Compressor Sequencing Screen - Page 1 10 – 1 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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• Machine Stop timer shows the time in seconds that the Master Compressor will hold before stopping slave compressor once the Stop decision is taken. 10 – 2 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Slave Compressor running into its stop timer, will be stopped. Slave Compressor is next in sequence for unloading. Slave Compressor running into its start timer, will be started. 10 – 3 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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• Defines the offset from suction pressure control set- point to monitor compressor load. If suction pressure Figure 10-2. Compressor Sequencing Screen - Suction Pressure Control Setpoints (Page 2) 10 – 4 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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If process temperature surpasses this setpoint’s value then the Figure 10-3. Compressor Sequencing Screen - Process Control Setpoints for Temperature 10 – 5 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Figure 10-4. Compressor Sequencing Screen - Process Control Setpoints for Pressure 10 – 6 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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• If discharge pressure drops below the discharge trigger setpoint then the sequencing algorithm Figure 10-5. Compressor Sequencing Screen - Discharge Pressure Control Setpoints (Page 2) 10 – 7 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
This screen is designed to add, display, delete and test connection with slave compressors that are used by Figure 10-6. Compressor Sequencing Screen - Device List (Page 4) 10 – 8 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
• Entry box to set the Device ID of a Vission Device. CFM: • Drop-down box to set the CFM of a Vission Device. Figure 10-8. Compressor Sequencing Screen - Add Device (Page 4) 10 – 10 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
By clicking the Test Connection button, the connection result is displayed as shown in Figure 10-10. Figure 10-10. Compressor Sequencing Screen – Test Connection 10 – 12 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
• Displays the date of the event in MM-DD-YYYY format. Time: • Displays the time of the event in HH:MM:SS format. Figure 10-12. Compressor Sequencing Screen - Events Log (Page 5) 10 – 14 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
• Assign a unique Ethernet IP address “ETHERNET” for each slave compressor. 10. Apply these settings before exiting Configuration screen. Figure 10-13. Compressor Setup for Compressor Sequencing (Slave) 10 – 15 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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11. Exit out of the configuration screen and then put the slave in Remote mode by pressing Unit Start->Remote, see Figure 10-14. Figure 10-14. Placing Slave Compressors into Remote Mode 10 – 16 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
Enable the Compressor Sequencing check box and select “Master”. Select a Network Name for the master compressor. Figure 10-15. Compressor Setup for Compressor Sequencing Master 10 – 17 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
Step Delay acts selection is inactive when Run mode is Auto and as “ON” timer while loading and acts as “OFF” timer Summer/Winter Auto Switch is enabled. 11 – 2 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
D = Derivative (rate): • Used to adjust the capacity control action, account- ing for how fast the error is changing, positively or negatively. 11 – 3 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Section 11 • Condenser Control Figure 11-2. Condenser Control Screen - Page 2 11 – 4 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
Output screens, see Figures 12-1, 12-2, 12-3 and 12-4. terminal 14 and is the 4th LED down on card 1. Figure 12-1. Service Options Screen - Digital Outputs (Page 1) 12 – 1 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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The output is connected to terminal 24 and is the 4th LED down on card 2. Figure 12-2. Service Options Screen - Digital Outputs (Page 2) 12 – 2 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Figure 12-3. Service Options Screen - Digital Outputs (Page 3) 12 – 3 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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44 and is the 4th LED down on card 4. Figure 12-4. Service Options Screen - Digital Outputs for Remote Oil Cooler (Page 3) 12 – 4 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
Remote Oil Cooler VFD. The output is connected to AO #2 on card 10. % Slide Valve Position Figure 12-5. Service Options Screen - Analog Outputs (Page 4) 12 – 5 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
• This option allows the operator to choose the mini- calibrated through the Vission 20/20. mum and maximum value of the instrument being used. Figure 13-1. Instruments Calibration Screen - Analog Inputs (Page 1) 13 – 1 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
Temperature or Pressure depending on the the compressor is running at close to full load amps as 13 – 2 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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• Total Error: • Not editable by the operator. Displays the Figure 13-3. Instruments Calibration Screen - Process Temperature (Page 3) 13 – 3 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Section 13 • Instruments Calibration Figure 13-4. Instruments Calibration Screen - Process Pressure (Page 3) Figure 13-5. Instruments Calibration Screen - Motor Current (Page 3) 13 – 4 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
Unit drop-down box then “total offset” entry box. set the maximum and minimum value for the scale. Figure 13-6. Instruments Calibration Screen - Analog Inputs (Page 4) 13 – 5 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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The operator can choose from several predefined ranges in the drop- down box or enter a value. Figure 13-7. Instruments Calibration Screen - Analog Inputs (Page 5) 13 – 6 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
4mA or 20mA output is hence not saved until this button is pressed. Figure 13-8. Instruments Calibration Screen - Analog Outputs (Page 6) 13 – 7 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
• The Vission 20/20 uses the “Min Limit” and “Max plied to the other capacity position displays. In addition, Limit” setpoints to define an area within the Figure 14-1. Slide Calibration Screen 14 – 1 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
Therefore It is possible to read a value greater than 100% or less than 0% if inertia carries the slides after these limits are reached. 14 – 2 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
0 volts AFTER the ACTUATOR calibration proce- dure is completed. View Rotate 180° Actuator Assembly Actuator Plastic Cover Red LED Blue Calibrate Button Figure 14-2. Actuator Assembly 14 – 3 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Section 14 • Slide Calibration Figure 14-3. Menu Screen and Slide Calibration Button (Vission 20/20) 14 – 4 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Do not over tighten screws. Failure to comply may result in damage to equipment. Figure 14-4. Photo-chopper Press down on Photo-chopper to release tension from mo- tor mount. 14 – 5 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
¾ second when then let go. Each ¾ second the going through the calibration button is held down counts as procedure. another press. 14 – 7 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Turck cable. The position sensor has failed. Replace the actuator. There is a broken motor lead or Replace the actuator. winding 14 – 8 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Stripped gears inside the gear The motor runs but output shaft will not rotor, or the armature has come Replace the actuator. turn. unpressed from the armature shaft. 14 – 9 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
Shade the actuator when the cover is off for service and calibra- tion. Do not operate the actuator with the cover off. 14 – 10 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Note 2: The TS1 wire pads are where the motor thermal switch leads solder into the circuit board. They are clearly marked on the board’s silkscreen legend and are oriented at a 45 degree angle. 14 – 11 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
“Stop” and will be red in color. When the “Stop” button is pressed, the trend data is saved to a file. Figure 15-1. Trend Chart Screen 15 – 1 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
Setup: • This button allows the operator to open the Trend Setup screen. This button is inactive when the trend feature is running. 15 – 2 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
If the operator changes Press/Temp units or switches Process Control Modes from the configuration screen when running the trending feature, then the background trending will stop. Figure 15-2. Trend Setup Screen 15 – 3 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
• Displays the informational string that describes the event. Event list Columns Date: • Displays the date of the event in MM-DD-YYYY format. Figure 16-1. Event List Screen 16 – 1 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Process Temperature or Process Pressure values will be displayed depending on Process Control Mode selection in Configuration Screen. Refer to Figures 17-1 and 17-2. Figure 17-1. Input/Output Screen - Page 1 17 – 1 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Vilter App will be able to read this code and translate it into the information it contains, making it readily available for the user (see Figure 17-8). Figure 17-8. QR Code 17 – 5 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Figure 18-1. The digital input can be configured to pro- duce an alarm, a trip, and an inhibit on either a high or Figure 18-1. Auxiliary I/O Screen - Digital Inputs (Page 1) 18 – 1 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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If the value decreases that when exceeded will generate an alarm. to 99, then the output will be toggled in the oppo- site direction. 18 – 2 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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• Minimum Output / Maximum Output: • These setpoints define minimum and maxi- mum output. The Auxiliary output produces a linear value based on these settings. 18 – 4 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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• Panel Identifier used by the controller when commu- • Offers the ability to change the compressor run nicating with multiple panels. Figure 19-1. Configuration Screen - Initial Setup (Page 1) 19 – 1 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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• Selects the mode of remote control. The operator can select between Direct I/O, Serial, or Ethernet. On Communication Failure • This feature of the Vission 20/20 offers the ability to 19 – 2 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Vission 20/20 Panels. 5. Currently only Java Version 6 and below is support- ed when accessing Vission 20/20 Panels over Web browser. 19 – 3 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Select this option when under Direct I/O control and the system controller is to gain control of the Vission 20/20 without human interference. 19 – 4 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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& 19-4. Slave: • Identifies the panel as a slave while in sequencing Figure 19-2. Configuration Screen - Compressor Control (Page 2) (Compressor Type – VSS) 19 – 5 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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• This defines the discharge pressure input as the control algorithm. process variable and all controls will be based on discharge pressure. The operator has the option to 19 – 6 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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• If the check box is enabled, then after 15 minutes of inactivity, a blank screen will be displayed as a screen Figure 19-3. Configuration Screen - Compressor Control (Page 2) (Compressor Type – VRS) 19 – 7 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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The rest of the Remote Oil condition is over, i.e. low oil pressure timer is elapsed, 19 – 8 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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PM drop-down box will be available if the 12 hour for- Maintenance Screen. mat is selected. Differential Pressure (Psig): Figure 19-4. Configuration Screen - Compressor Control (Page 2) (Special Compressor Settings) 19 – 9 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Allows the operator to assign a name to the input. list of values for selection. The value set from the second Figure 19-5. Configuration Screen – Configurable Main Screen Settings (Page 3) 19 – 10 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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• Enables the selected analog input. Set Name: • Allows the operator to assign a name to the input. Figure 19-6. Configuration Screen – Configurable Main Screen Settings (Page 4) 19 – 11 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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• Allows the operator to assign a name to the output. • Allows the operator to assign a name to the output Figure 19-7. Configuration Screen - Digital Auxiliaries (Page 5) 19 – 12 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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• Not editable by the operator. Identifies that the Analog Output: Digital Input card 1 is enabled. • Enables the optional Analog Output card. Figure 19-8. Configuration Screen - Analog Auxiliaries (Page 6) 19 – 13 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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The log files are all saved as simple ASCII text and the databases can be examined with SQLite. Figure 20-1. Data Backup Screen - Save/Load 20 – 1 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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• Using these checkboxes, the operator can choose to save or load all or part of the information contained in the Vission 20/20 according to the selection of options. 20 – 2 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Migrate: 20/20 back to the factory default settings. • This button initiates the migrate function. Figure 20-2. Data Backup Screen - Migrate and Factory Reset 20 – 3 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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During the course of operation, the operator can generate reports at any time, see Figure 20-3. Figure 20-3. Data Backup Screen - Setpoints Report 20 – 4 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Kingston DataTraveler 512MB indicating that an “incompatibility” has been found. This SanDisk mini cruzer 128MB is NORMAL. The new flashcards are built such that they AirBus 32MB 20 – 5 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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10 or 15 seconds. Then cycle power on the panel. This will force the Maintenance “Time Remaining” column to be properly calculated. 20 – 6 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Instrument Calibration - Temperature page a. Record ‘total offset’ for suction temperature, discharge temperature, oil separator tempera- ture, oil manifold temperature and process temperature. 20 – 7 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Section 20 • Data Backup Figure 20-4. Flashcard Replacement 20 – 8 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Once the operator has decided the item to sign to Figure 21- 4. off, pressing the service interval item will perform the Figure 21-1. Maintenance Screen - Chart 21 – 1 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Maintenance Log will get updated. Refer to Figure 21- 7 & Figure 21- 9. 21 – 2 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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• The notes tab allows the operator to make notes for any other personnel that might have access to the Vission 20/20. Refer to Figure 21- 8. 21 – 8 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Time: • Lists the time the maintenance task was performed. User: • Lists the name of the operator who performed the maintenance task. 21 – 9 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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“Apply” button. Press the “Manage Accounts” with this level of access. tab to begin the process of entering another Operator Figure 22-1. User Access Screen - Login 22 – 1 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Vission 20/20. Selecting a name the name is added to the “Operator Name” entry box. Figure 22-2. User Access Screen - Manage Accounts 22 – 2 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Slide Calibration Level 2 Set Language Level 2 Timers Level 2* Level 3 required for constraints Moving Volume Slide Level 3 VNC Account Level 3 22 – 3 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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PDF type documents on a connected USB drive, the names will be listed in this section. The operator Figure 23-1. Help Screen - Manual 23 – 1 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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• Allows the operator to enter the page number he wishes to see displayed in the window. Figure 23-2. Help Screen - USB Figure 23-3. Version Pop-Up Screen 23 – 2 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Configuration Screen, page 2, and select “VRS” from the dropdown box labeled “Compressor”, see Figure 24-1. Figure 24-1. Configuration Screen - Twin Screw Option 24 – 1 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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The “% cap” display shows the actual percentage value of the capacity slide without any conditioning that might Figure 24-2. Slide Calibration - Fixed VI 24 – 2 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Limit. Fixed VI: • The normal software limits apply without any modification. Figure 24-3. Slide Calibration - Continuous VI 24 – 3 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Figure 24-4. Slide Calibration - Step VI 24 – 4 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Safety Bypass timer is started (set at 60 seconds by de- fault, but it is adjustable). Figure 24-6. Prelube Oil Pressure and Run Oil Pressure Settings 24 – 6 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Run Oil Press Trip setpoint, then the compressor will fail because of “Run Oil Pressure”. Figure 24-7. Timers Menu - Twin Screw Control 24 – 7 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Compressor Settings Section, see Figure 25-1. Once sor. This creates a pressure differential that forces the selected, the “Cool Compression” option will appear Figure 25-1. Configuration Screen 25 – 1 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Auto Load will be disengaged. • Auto load will be disengaged when one of the Figure 25-2. Compressor Control Screen - Cool Compression Control (Page 2) 25 – 2 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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• On the Timers screen the Oil Level #1 Safety Trip Load Limit setting. Delay and Oil Level #2 Safety Trip Delay settings are disabled. 25 – 3 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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ONLY when the low level switch opens af- • Low / high Pressure Oil Injection ports control ter the compressor stops. as Pressure Ratio and Superheat temperature changes. 25 – 4 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Remote Oil Cooler run even when the compressor is off. Temperature pressure that matches the setpoint. Figure 26-1. Remote Oil Cooler Screen (Page 1) 26 – 1 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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This setpoint should While in a VFD step, an additional step can only be added once the VFD has reached its maximum speed 26 – 2 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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(at which the Remote Oil Cooler VFD fan is connected) reaches 20mA in its normal range of 4-20mA. Figure 26-2. Remote Oil Cooler VFD Screen (Page 2) 26 – 3 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Oil Filter Cover Gasket. Also note that the Oil Filter Cover Gasket can be ordered separately. Vilter Aftermarket Parts Contact Information Phone 1-800-862-2677 1-800-862-7788 E-mail [email protected] Website http://www.emersonclimate.com/en-us/services/aftermarket/vilter_aftermarket_ parts/pages/vilter_aftermarket_parts.aspx 27 – 1 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Section 27 • Parts 7, 8 Figure 27-1. Vission 20/20 - Main Enclosure Electrical Components 27 – 2 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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TERMINAL BLOCK_GROUND_CPE, DECA DIN 3485TBG CIRCUIT BREAKER – ABB 15AMP-SINGLE POLE 3485V TERMINAL BLOCK_CDU 2.5, DECA DIN 3485TB EMERGENCY STOP SWITCH W/ 1NO, 1NC (ABB CE4P-10R-11) 3485H 27 – 3 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Section 27 • Parts 2, 3 Figure 27-2. Vission 20/20 - Door Interior Components 27 – 4 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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FERRITE BEAD CORE 3485FBC POWER SUPPLY (DUAL) ASSEMBLY ON MOUNTING PLATE W/ WIRING HARNESS 3485K CABLE – CPU TO I/O POWER/COMM CABLE 3485WC ISOLATOR MODBUS RTU 3485C1 27 – 5 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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..DISPLAY BACKLIGHT (OUTDOOR) 3485DLQ .REPAIRED RESISTIVE TOUCHSCREEN, 15” 8 WIRE DAWAR 3485JR .RESISTIVE TOUCHSCREEN, 15” 8 WIRE DAWAR 3485J .TAPE TO SECURE TOUCHSCREEN TO DOOR 3485JT 27 – 7 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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If these are inserted correctly, the problem could be a bad LCD inverter board or a component failure. Check the flash card’s socket A - 1 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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(SBC), and LED2 is on when a response is sent from the board to the SBC. A - 2 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Capacity or volume on-screen The slides moved beyond the software limits. values are above 100 % or Recalibrate the slides below 0 % A - 3 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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VPLUS (AC Motor) Setup Procedure for Vission 20/20 Panel ..............B-33 VPLUS (DC Motor) Setup Procedure for Vission 20/20 Panel ..............B-39 Vibration Monitoring Setup Procedure ....................B-46 B - 1 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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B - 2 / Blank Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
Figure B-1. Pulldown • Enables access to Pulldown control setpoints. Uncheck the box to disable the Pulldown setpoints. Initiate Pulldown at Next Start B - 3 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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After the 12th step (running at 25 psig), 240 hours will have elapsed, and the new setpoint changes to 20 psig. After the Pulldown setpoint equals or is less than the control setpoint, the Pulldown feature disables itself. B - 4 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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After 20 hours of running at 70 psig, the next set of Pulldown setpoints are calculated. This is repeated until the target setpoint (Stop Pressure setpoint) is reached. The Pulldown operation is then disabled and the compressor will con- tinue to operate at this setpoint. B - 5 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
The configuration screen must first be setup to enable two setpoints, see Figure B-2. Figure B-2. Configuration Screen (Page 2) - Two Setpoint Operation Setup B - 6 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Appendix B • Vission 20/20 Application Procedures Figure B-3. Compressor Control Setpoint 1 and Setpoint 2 Setup B - 7 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Figure B-4. Control Mode and Oil Control B - 8 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Refer to Figure B-4, for registering information to set up the active setpoint. Figure B-5. Alarm and Trip Safety Setpoints for Setpoint 1 and Setpoint 2 B - 9 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Low VI Digital Output = OFF Low VI Digital Output = ON High VI Digital Output = ON High VI Digital Output = OFF Capacity = 100% (4145mV) B - 11 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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#5 and #6. • As per Table B-1, we need SV3 and SV4 ON at the same time to position the slide at 2.2 vi position. B - 12 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Appendix B • Vission 20/20 Application Procedures Figure B-5A. Required Relay Logic / Wiring to Achieve Table B-1 Solenoid States B - 13 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
NOTE The master compressor will ALWAYS be priority #1 Figure B-6. Master Compressor Loading, Unloading and Auto-cycle Setpoints Setup B - 14 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Device List Screen of slave compressor loading and unloading rules are the Compressor Sequencing Menu. Figure B-7. Setup of Master Compressor for Slave Compressor(s) Loading and Unloading B - 15 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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/ unload timers to accomplish These setpoints can be changed by logging on sequencing control are defined here: Figure B-8. Slave Compressor(s) Loading and Unloading Setup B - 16 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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/ unload cycle. tion control setpoint, but greater than fast unload off- set, so program will monitor suction pressure every 30 sec (as per slow unload timer). B - 17 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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80%) When it times out, and provided there is still enough B - 18 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Slave Compressor running into its stop timer, will be stopped. Slave Compressor is next in sequence for unloading. Slave Compressor running into its start timer, will be started. B - 19 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Now the available CFM = (408 * (90 - 70) / 100) = 81.6 CFM and since the required CFM to absorb slave 3 load is = 48.3, there is now enough available and slave 3 will be shutdown. B - 20 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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“set” priority order and any future com- mand to increase capacity of a slave compressor will re- sult in the compressor being restarted. B - 21 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
The Danfoss Liquid Injection valve is selected from the Configuration Screen - Page 2 (Under Oil Cooling Section.) The settings for the Danfoss Liquid Injection are setup in the Compressor Control Menu - Page 4. B - 22 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Additional isolation on the power sup- ply circuits adds a third degree of protection Figure B-12 A ILinx 4850PDRI-PH 2-wire Network Isolator Figure B-12 B ILINX 4850PDRI-PH 4-wire Network Isolator B - 23 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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B-14) from the scope shows the amount of noise on the To order this isolator, please use Vilter part number 3485C1 Figure B-14. Network Noise with Phoenix Contact PSM-ME Isolator B - 24 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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10. An analog output card is required to output a 4-20mA Figure B-15. Selection of Installed Boards from Configuration Screen (Configuration Screen – Page 6) B - 25 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Figure B-16. Enabling and Naming Analog Outputs (Configuration Screen – Page 7) B - 26 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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“Chiller Level 4,20 Input” and Auxiliary Continue to step 4. Figure B-17. Enabling and Naming Analog Inputs (Configuration Screen – Page 6) B - 27 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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The units of this signal are in “percent”. b. 4 mA signal corresponds to 0% level. 20 mA signal corresponds to a 100% level. Figure B-18. Scaling Setup for Auxiliary Analog Inputs B - 28 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Low Alarm setpoint or above the Hi Alarm • Continue to step 6. Figure B-19. Auxiliary I/O Alarm and Trip Setup B - 29 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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) is controlled by the Auxiliary Input valve will be adjusted in response to the “error” from the “Chiller Level 4,20 input” - which was configured in Steps desired setpoint. B - 30 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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50%, the positioning valve will be fully closed. As it rises above 50%, then the position- ing valve will begin to open. B - 31 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Appendix B • Vission 20/20 Application Procedures Figure B-21. Proportional Level Control (Auxiliary I/O – Page 6) B - 32 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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VPLUS motor - thereby increasing and decreasing the amount of liquid refrigerant that will be injected into Figure B-22. Analog Output card wiring to VPLUS VFD controller B - 33 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Appendix B • Vission 20/20 Application Procedures B - 34 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Injection Section). The Oil Separator Temp Override Setpoint is also active and will not allow the Liquid Injection solenoid to energize until the Oil Separator Temp is above the Oil Separator Temp Override Setpoint. B - 35 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Log on and navigate to the Configuration screen, page number 6. Insure that all boards that are physically Figure B-25. Selection of Installed Analog Output Board (Configuration Screen – Page 6) B - 36 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Navigate to page 2 of the Configuration screen. In the middle column, towards Continue to step 3. Figure B-26. VPLUS Oil Cooling Selection B - 37 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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4-20ma signal to the VFD for the VPLUS motor. • Motorized Valve Control: P = 25.0 I = 1.0 D = 4.0 Figure B-27. VPLUS / Motorized Valve Control PID Parameter Setup B - 38 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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4-20ma signal to a Dart speed Figure B-28. Standard VPLUS Oil Cooling System Wiring (Eliminating Temperature Controller) B - 39 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Appendix B • Vission 20/20 Application Procedures Figure B-29. Temperature Controller Wiring Removed After removing the temperature controller wiring, the wiring diagram will look like Figure B-29. B - 40 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Figure B-30. Wires from AO#4 will land on wires 106 and 107, see Figure B-29. Figure B-30. Analog Output Card Wiring to VPLUS Dart Speed Controller (Wire 106 and 107) B - 41 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Appendix B • Vission 20/20 Application Procedures Figure B-31. Digital Output Card Wiring to VPLUS CRV Relay Terminal 104 B - 42 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Logon and navigate to the Configuration screen, page number 6. Insure that all boards that are physically Figure B-32. Selection of Installed Boards (Configuration Screen – Page 6) B - 43 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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“Motorized Valve” selection. Note that by selecting the positioning valve algorithm, the speed of Figure B-33. Oil Cooling Selection for VPLUS Oil Cooling B - 44 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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In some applications, selecting this option can provide a more stable Figure B-34. Setting the VPLUS / Motorized Valve Control PID Parameters B - 45 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
This procedure will only show the steps to set up one vibration monitoring set (one Vibration Sensor and one Transmitter). Figure B-35. Vibration Monitoring - Step 1 (Configuration Screen, Page 6) B - 46 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Fault Detector signal and a 4-20 mA Overall Vibration signal, two auxiliary inputs are needed, Input #1 and Input #2. Figure B-36. Vibration Monitoring - Step 2 (Analog Auxiliary Screen, Page 4) B - 47 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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“1.0 in,sec” will correspond to 20 mA. No further set up is required, other than what has been explained. Figure B-37. Vibration Monitoring - Step 3 (Instrument Calibration, Page 4) B - 48 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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(i.e. a crack in the race of a roller bearing). Figure B-38. Vibration Monitoring - Step 4 (Instrument Calibration, Page 4) B - 49 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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“Delay” time, then the alarm or trip will activate. Figure B-39. Vibration Monitoring - Step 5 (Auxiliary I/O Screen, Page 3) B - 50 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Trend Setup screen and only a maximum of 4 devices can be viewed at one time on the Trend screen chart. Figure B-40. Vibration Monitoring - Step 6 (Trend Screen) B - 51 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Common Register Setup For Controlling The Vission 20/20 (Compressor Control) Via Communications C-25 Control Scenario ............................ C-28 Remote Monitoring ..........................C-28 Communication Port Setup ........................C-28 C - 1 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Appendix C • Remote Control and Monitoring of Vission 20/20 Panel C - 2 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
• Belden P/N 8164 (individually shielded with overall shield) • Manhattan P/N M3477 (individually shielded with overall shield) • Manhattan P/N M39251 (individually shielded with overall shield) C - 3 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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They also offer increased speed. The third reason is that computer manufacturers are steering serial network us- ers to move towards using the USB ports for serial communications. C - 4 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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USB port. The green plug of the convertor would then be connected to the RS422 or RS485 network (network wiring is not shown). C - 5 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Configuration screen. A USB device must be plugged into one of the USB ports in order for the “Serial USB” option to appear from the drop-down box. C - 6 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
Table C-1. Figure C-6. Wiring Diagram – VPN 3485C1 Device as Network Isolator/Repeater Table C-1. Dipswitches and Baud Rate Selection C - 8 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Appendix C • Remote Control and Monitoring of Vission 20/20 Panel Table C-2. RS422/485 Switch Settings Figure C-7. VPN 3485C1 DIN Rail Mounted C - 9 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
Setup and support of these networks are beyond the ability of Vilter Figure C-9. Network Configuration for Access via Internet – Example 1 C - 11 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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20/20 panel has an assigned router port. to the internet, running a VNC client program which Figure C-11. Network Configuration for Access via Internet – Example 3 C - 12 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
Vission 20/20 panels would be setup for Modbus TCP protocol. When the connection is made, Figure C-12. Network Configuration for Access via Internet – Example 4 C - 13 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
After Installing Java, change the security Level to Medium from the Java Control panel, otherwise VNCViewer will get blocked while trying to access VNC server. C - 14 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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• Example: If Panel IP Address is 192.168.1.98 and Browser Port Number is 5901 then type https://192.168.1.98:5901/ address in web browser. • On accessing the above address there will be a security warning prompt. Click on “I Understand the Risks”. C - 15 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Appendix C • Remote Control and Monitoring of Vission 20/20 Panel Click on “Add Exception”. Click on “Confirm Security Exception”. C - 16 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Click on “Confirm Security Exception”. Check “I accept the risk and want to run this app” and click on “Run” button. Click on “Yes” button. C - 17 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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To have VNC access from a desktop when the web browser option is enabled you require SSVNC Client. Please see below for the steps. Download and open SSVNC Viewer Application. C - 18 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
Control via communication port. This can be accomplished through: • Ethernet ( via Ethernet I/P or Modbus TCP/IP ) • Serial (RS485 Modbus RTU ) Control via Direct I/O (Digital inputs) C - 19 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
So when a device communicates to the Figure C-13. Typical Block Diagram of a Multi-Compressor Control Scheme (1 of 4) C - 20 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Appendix C • Remote Control and Monitoring of Vission 20/20 Panel Figure C-13. Typical Block Diagram of a Multi-Compressor Control Scheme (2 of 4) C - 21 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Appendix C • Remote Control and Monitoring of Vission 20/20 Panel Figure C-13. Typical Block Diagram of a Multi-Compressor Control Scheme (3 of 4) C - 22 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Figure C-13. Typical Block Diagram of a Multi-Compressor Control Scheme (4 of 4) The actual control scheme that you use will depend upon the response of the process that you are trying to control. C - 23 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
(ON or OFF). This determines when communi- is “node” number for Modbus RTU.) cation “writes” for Compressor Command registers Figure C-14. Configuration screen - Page 1 C - 24 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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The Remote Lock will be ON after power is restored, which means it will not accept any “writes” via communication within the Compressor Command register region, until someone walks up to C - 25 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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– then energize continuously. Pressure control mode to Process Temp control mode or vice versa. This can be done via communications using the following register. C - 26 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Table D-1. If the new target is < 0.4% (full scale) away from the current position – then don’t do anything – this is the C - 27 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
VFD increases speed from min- imum to maximum is not the same. So there are two different capacity profiles that the integrator needs to C - 28 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
You will be able to read from and write to registers. In Direct I/O mode, you cannot write to reg- isters in the Control Block region of Modbus registers 40500 through 40513. C - 29 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Remote Oil Cooler ........................D-25 Trend Chart ..........................D-27 Configuration (Time) .........................D-29 Configuration (Other) ........................D-29 Notes: Analog Outputs / Status Words / Commands / Compressor Scheduling ......D-31 D - 1 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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D - 2 / Blank Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.6...
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Read Digital Outputs N51:0 40051 Compressor Start 0 = OFF, 1 = ON Read N51:1 40052 Oil Pump 0 = OFF, 1 = ON Read Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7 D - 3...
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40109 Discharge Temperature F-INT Read N52:10 40110 Oil Separator F-INT Read Temperature N52:11 40111 Oil Manifold F-INT Read Temperature N52:12 40112 Process Control F-INT Read D - 4 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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40252 Run Oil Pressure F-INT Read N54:3 40253 Pressure Ratio F-INT Read N54:4 40254 Volume Ratio F-INT Read N54:5 40255 Superheat Discharge F-INT Read Temp. D - 5 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Trip Status Word #2 WORD Read (See Appendix) N55:8 40408 Trip Status Word #3 WORD Read (See Appendix) N55:9 40409 Trip Status Word #4 WORD Read (See Appendix) D - 6 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
Time (sec) Condenser Control N69:0 41170 Run Mode ENUM "0 = Run Never Read-Write 1 = Run With Comp 2 = Run Always 3 = Manual" D - 23 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Bit 13 = Unused Bit 14 = High Superheat Run Temp. Alarm Bit 14 = Unused Bit 15 = Low Run Pressure Ratio Alarm Bit 15 = Unused D - 33 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Bit 13 = Unused Bit 14 = Low Oil Filter Out Pressure Warning Bit 14 = Unused Bit 15 = Low Process Pressure Warning Bit 15 = Unused D - 34 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Bit 15 = Low Suction Temp. Bit 15 = Low Oil Level Trip Bit 15 = Low Oil Filter Out Bit 15 = Unused Trip After Stop Pressure Trip D - 35 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Compressor Scheduling: Hour INT – This value is allowed to be changed only when the schedule is disabled Compressor Scheduling: Minute INT – This value is allowed to be changed only when the schedule is disabled D - 36 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...
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Sync Synchronize Digital Input Input/Output Solenoid Oil Injection N.O. Normally Open N.C. Normally Closed Virtual Network Computing Pos. Position Resistance Temperature Detector Proportional Integral Derivative E - 1 Vission 20/20 • Operation and Service Manual • Emerson • 35391SC 2.7...