Emerson VSG, VSSG manual 2. Actuator Assembly, Operation

Page 47

Figure 4-2. Actuator Assembly

Section 4 • Operation

View Rotate 180°

Actuator

Assembly

Actuator

Plastic Cover

Red LED

Blue

Calibrate

Button

Figure 4-2. Actuator Assembly

•There is an error code ﬂashing on the actuator’s circuit board - an attempt to recalibrate should be made.

•The range of travel is not correct and the command shaft travel is physically correct.

•The compressor is pulling high amperage, the cali- bration of the volume slide should be checked.

•An actuator does not unload below 5%, or an actua- tor that doesn’t move.

•Something is not working properly such as the actua- tors, RTDs or transducers.

To calibrate optical actuators, continue with the follow- ing steps:

1.Stop compressor unit and allow to cool.

2.Remove screws securing actuator cover to actuator assembly. As a reference see Figure 4-2.

CAUTION

Wires are attached to the connector on the actuator cover. Handle actuator cover with care to prevent damage to wires. Failure to comply may result in damage to equipment.

3.Carefully lift actuator cover from actuator assembly

and tilt towards Turck connectors. Raise cover high enough to be able to press the blue calibration but- ton and be able to see the red LED on the top of assembly.

4.On the main screen of the PLC, press “Menu” then press the “Slide Calibration” button to enter the slide calibration screen, see Figure 4-3.

5.Logging on with high-level access will prompt the Calibrate button to appear, see Figure 4-4.

6.Press Calibrate button to initiate calibration mode. The Calibrate button turns green and Set Max and Set Min buttons appear.

NOTE

If the INC (increase) and DEC (decrease) buttons do not correspond to increase or decrease shaft rotation, swap the blue and brown wires of the “power cable”. This will reverse the rotation of the actuator/command shaft.

7.Press INC and DEC to move the slide valve and check for the correct rotation, see Table 4-1.

NOTE

When the actuator is in calibration mode, it outputs 0V when the actuator is running and 5V when it is still. Thus, as stated earlier, the actuator voltage will ﬂuctuate during calibration. After the actuator has been calibrated, 0V output will correspond to the minimum position and 5V to the maximum position.

VSG/VSSG • Installation, Operation and Maintenance Manual •Vilter/Emerson • 35391SSG

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Contents VSG/VSSG compressor unit Installation, operation & maintenance manualPage VSG/VSSG Standard Vilter Warranty Statement Vilter Manufacturing LLC Important MessageREAD CAREFULLY BEFORE INSTALLING AND STARTING YOUR COMPRESSOR Section 1 General Information Table of ContentsSection 3 Installation Section TitleSection 4 Operation Section 5 Maintenance/ServiceSection 6 Troubleshooting Section NumberTable/Figure Section 7 Warranty and PartsList of Tables and Figures AppendicesFigure 3-12. Installation of Coolers - Next to Buildling Section 1 General Information How To Use This Manual Figure 1-1. Gas Compressor Unit Model Designation Section 1 General Information Gas Compressor Unit Model DesignationsSection 1 General Information System Unit Identiﬁcation Figure 1-2. Gas Compressor Unit Components 1 of Section 1 General InformationCompressor Unit Component Identiﬁcation Figure 1-2. Gas Compressor Unit Components 2 of Figure 1-2. Gas Compressor Unit Components 3 of Section 1 General Information Component Identiﬁcation ContinuedSection 1 General Information Piping & Identiﬁcation Component Tags 3-Way Thermostatic Valve Symbols and IdentiﬁcationsPosition Transmitter High Side Float Valve Steady-Mount Bulb & Capillary 1 - 10 / Blank Figure 2-1. Gas Compressor Unit P&ID Section 2 Theory of OperationGas Flow Oil Life and Oil FlowThis is a continuous cycle RTDs and Pressure TransducersControl System Figure 3-1. Rigging and Lifting Points Section 3 InstallationDelivery Inspection Rigging and Lifting of Compressor UnitThe following are recommendations regarding long term storage Long Term Storage RecommendationsAIR COOLED OIL COOLERS Compressor Unit Inspections Prior to Storage or InstallationRecommended Onsite Tools Compressor has been placed in operation as of LONG TERM STORAGE LOGBuilding the Foundation FoundationFoundation Materials Considerations Prior to Startingof both Check the ability of the soil to carry the load Compressor Unit Installationrecommendations for setting, precautions, mixing, and Leveling and GroutingAdditional Information Codes and Standards COMPRESSOR UNIT HOUSEKEEPING PADS Figure 3-6. Housekeeping Pad Dimension Detail - Top View2 - # CLOSED TIES CENTER LINE 5 - # 6 VERT LEVEL010Ä5*4+0- 214176 4%1//0&& 14 175-2+0 10%46 $#5 PipingFy lbf Table 3-2. Maximum Allowable Flange LoadsNozzle Dia. in Fz lbfONE FAN DIAMETER NOT PREFERRED HOT AIR RECIRCULATION PREFERRED Figure 3-14. Cooler Placement and SpacingFigure 3-13. Discharge Elevation of Coolers Do not hydro test compressur unit. Failure to comply Pressure TestingInitial Oil Charging Using Non -Vilter Oils Unit Oil Charging and PrimingBypass Valve Normal Operating Level Maximum NON-Operating LevelMinimum Operating Level SUCTION INLET CLOSEOIL MIXING VALVE OPENREMOTE Section 3 InstallationInitial Oil Charging Priming Remote Oil Cooler and PipingMOTOR SUCTION INLETOIL FILTER OPEN Pre Start-Up Checklist Section 3 Installation Pre Start-Up15. Verify that all valves are in the open position Section 3 Installation Start-Up Dual Oil Filters Section 4 OperationOperation Oil InspectionCalibrate Slide Valve Actuators Control System CalibrationStopping/Restarting Starting, Stopping and Restarting the Compressor StartingFigure 4-2. Actuator Assembly Section 4 Operation Figure 4-5. Photo-chopper Figure 4-4. Slide Valve Calibration Screen Compact Logix PLCCapacity Table 4-1. Command Shaft Rotation SpeciﬁcationsAngle/Slide Travel 18. Press the “Set Max” button Oil Temperature Control Valve Oil Mixing Valve OperationFail Position Purging with Dry Nitrogen 10. Close discharge bleed valve while still purging OIL SEPARATOR Purging with Dry GasPressure Indicator Section 4 Operation Figure 4-13. Suction Oil Charging Valve Figure 4-12. Suction Bypass Valve and Equalizing Solenoid Suction OilCoalescing Oil Return Line Setup Control Table 5-1. Maintenance/Service ScheduleOil Circuit UnitCompressor Unit Isolation for Section 5 Maintenance/ServiceMaintenance/Service Maintaining Proper OperationCompressor Unit Leak Check Send samples immediately to the oil analysis lab after Oil System Components Oil SamplingUse Vilter Oil Analysis Kit VPN 3097A to collect an oil sample for analysis. For an example, see Figure 5-2. FillOil Charging Oil Draining Oil Filter ReplacementSingle Oil Filter Assembly Dual Oil Filter AssemblyVent Valve Drain Valve Inlet Shut-Off Valves Centering Strap Coalescing Filter ReplacementCoalescing Filter View From Back of Oil Pump Strainer Oil Pump StrainerSize Drive Coupling Form-Flex BPU Hub InstallationTable 5-3. Shaft and Hub Distances 17. Install set screw in hub cap to secure key in keyway of shaft Drive Center Member Installation and AlignmentAngular Alignment Table 5-5. Disc Pack Installation Torque SpeciﬁcationsTable 5-4. Hub Clamp Bolt and Set Screw Torque Speciﬁcations Drive Coupling Form-Flex BPU Center Member and Hub Removal Drive Coupling Type C Sure-Flex ReplacementTable 5-6. Clamping Bolts and Set Screw Torque Speciﬁcations Compressor ReplacementLock Washer Figure 5-11. Bearing Axial Float Inspection Compressor Shaft Bearing Float InspectionsFigure 5-13. Gate Rotor Float Gate Rotor Float and Gate Rotor Bearing Float InspectionTable 5-7. Maximum Bearing Float Figure 5-12. Bearing Radial Float InspectionGate rotor bearing float being measured Table 5-8. Gate Rotor FloatFigure 5-14. Gate Rotor Bearing Float Applied Force Rigidly attach dial indicator Use bolt for fulcurmFigure 5-15. Gate Rotor and Support Clearance - Minimum Clearances Section 5 Maintenance/Service Gate Rotor and Support ClearanceStraight Edge Straight Edge Straight Edge Figure 5-16. Gate Rotor and Support Clearance - MeasuringGate Rotor Support Gate Rotor Gate Rotor Support Gate Rotor Gate Rotor Support Gate RotorTable 5-9. Gate Rotor Tool Sets Gate Rotor Assembly Replacement All VSG & VSSG Compressors ExceptVSG 301-701 Compressors Figure 5-18. Gate Rotor Assembly Removal Figure 5-17. Gate Rotor Assembly Removal and ToolsFigure 5-20. Gate Rotor and Shelf Clearance Figure 5-19. Gate Rotor Assembly and ToolsFigure 5-21. Gate Rotor Assembly Breakdown Gate Rotor Assembly Replacement VSG 301-701 Compressors ONLYFigure 5-22. Gate Rotor Thrust Bearing Figure 5-23. Gate Rotor and Shelf ClearanceFigure 5-24. Gate Rotor Blade Assembly Gate Rotor DisassemblyFigure 5-25. Gate Rotor Blade Installation Figure 5-26. Gate Rotor Thrust Bearing Figure 5-27. Thrust Bearing InstallationFigure 5-28. Roller Bearing Assembly Slide Valve Actuator Assembly ReplacementFigure 5-29. Command Shaft Seal Command Shaft Assembly ReplacementCommand Shaft Seal Replacement Figure 5-30. Command Shaft Seal Installation Table 6-1. Slide Valve Actuator Troubleshooting Guide 1 of Section 6 TroubleshootingProblem SolutionTable 6-1. Slide Valve Actuator Troubleshooting Guide 2 of Table 6-2. Slide Valve Actuator LED Blink Codes* 1 of Flash PatternMeaning not the loss of 24V power during calibration, possible causes are er before the calibration procedure was completed. The actuatorwill not move while this error code is displayed. To clear the error calibrate the actuator. If this error has occurred and the cause wasTable 6-3. Troubleshooting Guide - General Problems & Solutions 1 of Table 6-3. Troubleshooting Guide - General Problems & Solutions 2 of Table 6-3. Troubleshooting Guide - General Problems & Solutions 3 of 6 - 8 / Blank Warranty does not cover labor and extraneous expenses Section 7 Warranty and PartsWarranty Claim Processing On Site Service SupportRequest a “VSG Single Screw Compressor Rebuild Form” Remanufactured Gas Bare Shaft Compressor ProcessTorque Specifications for 17-4 Stainless Steel Fasteners ft-lbs Appendix A Torque SpecificationsTorque Specifications ft-lbs Appendix B Motor Compressor - General Storage Instructions No Action Required Appendix C Oil Analysis ReportEvaluation PRODUCT ANALYSIS REPORTAppendix D Recommended Header Piping INLET ON BOTTOM Appendix E Recommended Remote Air Cooled Oil Cooler PipingOUTLET ON TOP Blank