Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for Emerson VSG
Summary of Contents for Emerson VSG
- Page 1 VSG/VSSG compact logix PLC Operation manual FOR UNITS BUILT BEFORE JULY 1, 2013...
-
Page 3: Important Note
Instrument circuits entry on right side of enclosure Electrical installation shall be completed by a licensed electrician qualified in field wiring located in Class 1 Div 2 Hazardous Locations per the National Electric Code (NEC). VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL... - Page 4 4/Blank VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
-
Page 5: Table Of Contents
Slide Valve Actuator Troubleshooting Guide ............ 58 Command Shaft Rotation and Travel ..............60 Safety Failure Message ..................62 Version Screen ....................65 Trend Charts ....................66 Captured Data at Shutdown ................69 VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL... -
Page 6: Vsg/Vssg Standard Vilter Warranty Statement
Any suggestions by Seller or Seller’s agents regarding use, application or suitability of the products shall not be construed as an express warranty unless confirmed to be such in writing by Seller. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL... -
Page 7: Operational Flow Charts
Capacity INC Disabled Capacity Decrease Capacity Decrease until Disch Press > Motor Amps > Disch until Amps < FLA x Press < ON Setpt x Max (OFF) Cutout (OFF) 1.0625 1.0625 Setpt? Setpt? VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL... - Page 8 Timed Out? Suct Press Cap Dec Setpt? Suction Pressure Safety Lo Suction Press Suction Press < Alarm Suct Press Alarm Setpt? Lo Suction Press Suction Press < Failure Suct Press Trip Setpt? VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
- Page 9 < set pt? PID Control Oil Temperature Control Valve 30 sec delay Oil injection Unit Start Modulate valve temp > set pt? Oil injection Modulate valve temp < set pt? VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
- Page 10 Auto Restart if All Other Values Running During Power Minimum and Default Value= 4 Hours Are In Range Failure? H4 must be equal to or greater than 4 x H3 Lockout Requires Manual Restart VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
- Page 11 Are Motor Is Disch (Timer) Amps > Press > High Disch Motor Amp Load Limit Press Unload OFF Setpt? ON Setpt? Dec Cap Dec Cap No Change No Change (Timer) (Timer) VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
- Page 12 10 sec) Is Disch Press < Cap Inc Cap Wait Disable Cap Inc Inc ON Setpt (Timer) Are Motor Amps > Motor Amp Load Limit change OFF Setpt? Dec Cap (Timer) Change) VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
- Page 13 Increase or Decrease the Compressor Capacity Slides to Match Setpoints Check/Adjust VFD Increase or Decrease Motor Speed Is Control Press @ @ Rate Defined by VFD PID Setpoint? Parameters Is Motor Speed @ Min? VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
- Page 14 14/Blank VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
-
Page 15: Main Screen
Start/Stop buttons. setpoint items are not being performed. Hour meter. Status information such as Alarms and Trips are Motor amperage. displayed on the screen. Compressor operating conditions. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL... -
Page 16: Log On Screen
To Log Off: Touch the Log Off button. This will return to the DEFAULT low-level user. The DEFAULT user may navigate to most screens but cannot change settings. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL... -
Page 17: Set Up Screen
2.) Touch the Up or Down Arrow to move the green cursor “>” along side of the desired configura- tion. 3.) Touch the Enter button. This will highlight- green the chosen configuration. Touch Here VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL... - Page 18 When ‘Manual’ is selected, the compressor powers up into the ‘Stop’ mode and an explicit command to run is required from an operator or comms VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
-
Page 19: Vilter Only Screen
To synchronize the PanelView date and time to the Conrol Logix date and time: 1. Display the Vilter Only Screen (This screen has restricted access). 2. Touch the “Touch to Synchronize HMI Clock to PLC” button. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL... -
Page 20: Menu Screen
Auto – Places the capacity slides into automatic mode. In automatic mode, the capacity slide moves according to control setpoint information. Manual – Places the capacity slides into manual mode. In manual mode, the capacity slide moves moves based on input from the operator. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL... - Page 21 Menu Screen There are three options for the Compressor Control Setpoints: Discharge Pressure Control VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
- Page 22 Menu Screen Suction Pressure Control VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
- Page 23 Menu Screen Process Temperature Control VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
-
Page 24: Compressor Alarm And Trip
The alarm or trip deactivated and the Lo Oil Separator Run Tem- will be active on a rise in control temperature perature is the active setpoint. above the setpoint (only in process temperaure mode). VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL... - Page 25 Compressor is running above the set-point(s). · High Motor Amps – This is the High Motor Amps Safety. The Alarm and Trip will occur if the Motor Amps exceed the set-point(s). VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
-
Page 26: Compressor Timer Setpoints
7% away from the desired volume ratio, the mo- a limit on how long the prelube oil pump is al- tor is pulsed once toward the desired volume. lowed to run without establishing the Prelube Oil Pressure. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL... - Page 27 Low Oil Injection Temperature Timer. Note: if this option is chosen an arrow Safety is set. will appear alongside its current value. When active a point will appear. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
-
Page 28: Compressor Control Setpoints
Level 1 Access – Compressor Control Setpoints From the Menu screen, press the Compressor Control setpoints button. The compressor control setpoints screen will be shown. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL... - Page 29 Control Setpoints screen when the Compressor Control Via Suction Discharge option is selected on the Setup screen, it has an override effect when control is via process temperature as described below. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
- Page 30 ON and OFF setpoints. While this setting is only available for adjustment on the Control Setpoints screen when the Compressor Control Via Suction Pressure option is selected on the Setup screen, it has an override effect when control is via process temperature as described below. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
- Page 31 Setup screen. If compressor shutdown is desired on a process temperature drop and a manual reset is required, set the OFF value below the Low Control Temperature Safety trip valve. This will shut down the unit and a reset will be required to restart. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
- Page 32 This will essentially eliminate and difference between the ON and OFF setpoints. Process temperature control of the capacity is active only if the Compressor Control Via Process Temperature option is selected on the Setup screen. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
-
Page 33: Additional Compressor Controls
Oil Separator Heater Temperature – This con- On a decrease in capacity below the ON set trol limit determines when the oil separator point, the factor will be active. heater is energized. A decrease in oil separator VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL... -
Page 34: Compressor Setpoints And Alarms
5 amps; only the first of these is entered. For example, if the ratio reads 250/5, enter 250. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL... - Page 35 Blank/35 VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
-
Page 36: Motor Speed Setpoints & Control Screen
Decrease At: Low setting where a decrease of speed is desired Initial Speed: Desired forced speed to start the fan at as described above. Note: The PLC will auto- matically keep this value to at least the Minimum Speed setting. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL... - Page 37 Choosing Manual will do the following: The fan Output Mode will remain Manual Mode. Manual Speed: This setting becomes accessible only when the Manual Button is chosen. Enter the desired speed (%) for the VFD. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
-
Page 38: Diagnostics Force Output
On/Off output status displays to the right of each button. Return all maintained buttons to their off (grey color) state before exiting this screen. Exiting this screen does not automatically remove forces. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL... -
Page 39: Instrument Calibration
The “Calibrated Values” reflect the values used for control of the system. The user can perform calibration by pressing the respective Calibrate button alongside the value prompting the Calibration screen. Calibration Instructions are provided on each Instrument Calibration screen. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL... - Page 40 Instrument Calibration VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
- Page 41 Calibrated Value which is used for control. Alternatively, set the Target Value to desired/ actual Pressure. This will calculate the offset based on actual vs desired pressure. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
- Page 42 250 as the Maximum Ratio value. Set the Offset to zero unless required otherwise. The offset value adds to the resultant linearly scaled value and results in the Calibrated Value which is used for control. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
- Page 43 Raw T Reading is defined as the scaled value from the RTD input module. Set the Offset to zero unless required otherwise. The offset value adds to the raw temperature reading scaled value to result in the Calibrate Value is used for control. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
- Page 44 Set the Maximum Temperature to the actual maximum temperature at 4mA as marked on the transducer. Set the Offset to zero unless required otherwise. The offset value adds to the resultant linearly scaled value and results in the Calibrated Value which is used for control. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
-
Page 45: Oil Mixing Valve
The actuator is powered (120V or 24V) all the time. The position target signal from the compressor controller is a 4-20mA analog value. There is no feedback position from the actuator. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL... - Page 46 PID (Oil Return from Cooler)”. Rotating the Actuator for Convenience of Installation The actuator can be rotated to any one of four positions. Remove both 120V and 24V power from the actuator. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
- Page 47 Manual Override The actuator has a handwheel that can be engaged to override the electrically determined position of the ball valve. Push and rotate to engage. Push a second time to de-clutch. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
-
Page 48: Unit Start Screen (Start / Stop Logic)
The Local button is used to put the compressor controller into Local mode. This is the default mode for the compressor controller. In Local mode the compressor unit must be operated in Auto or Manual mode. START IN UNIT START LOCAL AUTO VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL... - Page 49 The remote PLC must maintain the Central mode operation by setting a tag in the compressor controller memory at least every 60 seconds. If the Central mode signal is lost during operation, the compressor controller reverts to Local Auto mode. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
- Page 50 Alarm Reset Button Pressing this button will reset the Alarms. Exit Button Pressing this button will close the Unit Start box. Help Button Pressing this button will open an additional help screen. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
-
Page 51: Device Names
To change Device Name, go into the “Vilter Only” screen and press “Create Device Names.” From the Device Name Screen, press the corresponding text window to change the name of the device. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL... -
Page 52: Calibration Procedure Of Optical Actuators
If you are re-installing a new optical actuator re- tion. After the actuator has been calibrated, 0V connect the yellow and gray cables. output will correspond to the minimum position and 5V to the maximum position. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL... -
Page 53: Calibration Procedure Of Optical Actuators
“Set Min” button in the capacity or volume slide valve window to tell the controller that this is the minimum millivolt position. Note: The value in the “Current Cap” or “Current Vol” window has no meaning right now. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL... -
Page 54: Calibration Procedure Of Optical Actuators
“Setup” menu and choosing “Alarm Enable” for the “Slide Non-Movement Option”. 23. This completes the calibration for this chan- nel either capacity or volume. Repeat the same procedure to the other channel. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL... - Page 55 The brake can be disengaged by pushing on the motor shaft on the cone end. The shaft should be centered in its travel. Do not use excessive force manually operating the motor or damage may result. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
-
Page 56: Installation Instructions For Replacement Of Optical Actuator
DO NOT attempt to calibration in direct sunlight. 3. Before applying power to the PLC disconnect the gray and yellow cable. 4. Power the PLC back on. 5. Refer to Calibration Procedure of Optical Actua- tors. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL... -
Page 57: Slide Valve Actuator Theory Of Operation
EEPROM memory. When power is restored, the saved motor position is read from EEPROM memory and the actuators resumes normal function VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL... -
Page 58: Slide Valve Actuator Troubleshooting Guide
The motor brake is not working Get the motor brake to where it op- correct position after a power loss properly erates freely and then recalibrate. The position sensor’s EEPROM Replace the actuator. memory has failed VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL... - Page 59 Stripped gears inside the gear The motor runs but output shaft will motor or the armature has come un- Replace the actuator. not turn pressed from the armature shaft VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
-
Page 60: Command Shaft Rotation And Travel
The actuator is being operated where strong infrared light can falsely trigger the slotted optocouplers, such as direct sunlight. Shade the actuator when the cover is off for service and calibration. Do not operate the actuator with the cover off. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL... - Page 61 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 silkscreen legend and are oriented at a 45 degree angle. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
-
Page 62: Safety Failure Message
This message will appear when the discharge temperature rises above the safety setting of the High Dis- charge Temperature Trip setpoint. In addition, this message will appear when the discharge temperature falls below -30 degrees, indicating a shorted RTD. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL... - Page 63 This message will appear when the Oil Injection temperature rises above the High Oil Injection Temperature trip setpoint. Manifold Pressure Fail – This message will appear with the manifold pressure rises above 300 PSI or falls below 30” Hg. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
- Page 64 Separator Oil Level Trip” (please refer to your wiring diagram). This safety has an associated delay. The associated delay timer is the Low Oil Separator Level Bypass Timer. This safety will activate only after the oil level has been low after the timer times out. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
-
Page 65: Version Screen
Confirm that the dates and times of the HMI and Logix processor are equal. If unequal, follow instructions for setting the date and time from the Vilter Only screen. Note: Access to the Vilter Only screen is password protected. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL... -
Page 66: Trend Charts
0-100 whereas the capacity and volume will remain within 0 to 100 (%.) This allows the viewer to easily observe the relationship between data. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL... - Page 67 4.73 days worth of historical data. Addition of items will decrease the total record period. Historical data is stored in the flash memory card located in the back of the PanelView HMI. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
- Page 68 Touch the Close button twice to return to the Terminal Settings screen. f. Touch the Close button again to exit the Terminal Settings screen. g. Touch the Reset button then the Yes button to reset the PanelView VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
-
Page 69: Captured Data At Shutdown
Captured Data at Shutdown The Captured at Shutdown screen shows data captured prior to compressor shutdown. VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL... - Page 70 70/Blank VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL...
- Page 72 35391CL Rev. 8 (8/13) Emerson and Vilter are trademarks of Emerson Electric Co. or one of its affi liated companies. © 2013 Emerson Climate Technologies, Inc. All rights reserved. Printed in the USA.
Need help?
Do you have a question about the VSG and is the answer not in the manual?
Questions and answers