Emerson VSG & VSSG Troubleshooting Guide

VSG/VSSG compact logix PLCOperation manual FOR UNITS BUILT BEFORE JULY 1, 2013

10VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLShutdown due to Operational FailureDelayed Lockout TimersWARNING: FOR THE FOLLOWING SH

11VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLStartHasDecrease at Start(Expired 15sec.)WaitAre MotorAmps > Motor Amps LoadLimit ON

12VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLStartHasDecrease at Start(Expired 15 sec.)WaitIs Disch Press > CapDec ONSetpt?Is Dis

13VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLCompressor Operation with VFD DriveStart CompressorStart VFD at Minimum Speed(30 Hz Typ

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15VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLMain ScreenThis screen contains buttons to navigate to setpoint setup screens.Status in

16VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLLog On ScreenPress Log on Button and the below screen will ap-pear. When altering setpo

17VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLFrom the Main screen, touch the Setup button. After entering an authorized user name a

18VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL· Setpoint #1/#2 Select – The operator can select the compressor to run with setpoint

19VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLVilter Only ScreenTo synchronize the PanelView date and time to the Conrol Logix date a

20VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLAt the bottom of the Main screen touch the Menu button to bring up the screen shown in

21VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLDischarge Pressure ControlThere are three options for the Compressor Control Setpoints:

22VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLSuction Pressure ControlMenu Screen

23VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLProcess Temperature ControlMenu Screen

24VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLCompressor Alarm and Trip· Low Suction Pressure Setpoints 1&2 – This is the low su

25VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLCompressor Setpoints and Alarms· Prelube Oil Pressure – This is the low Prelube Oil Pr

26VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLCompressor Timer Setpoints · Capacity Decrease At Start – At compressor startup, the c

27VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL· Filter Differential Pressure Safety Changeover – This timer bypasses the Hi Run Filt

28VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLCompressor Control SetpointsFrom the Menu screen, press the Compressor Control setpoint

29VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLSetpoints on this screen:· Discharge Pressure On/Off – The compressor will automatical

3VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLImportant NoteBefore applying power to the control panel, all wiring to the panel shall

30VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLSetpoints on this screen:· Suction Pressure On/Off – The compressor will automatically

31VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLSetpoints on this screen:· Process Temperature Control – Provides for a Suction Pressu

32VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL· Capacity Control °F Increase – The capacity of the compressor will increase when pro

33VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLAdditional Compressor Controls· High Discharge Pressure Unloading Setpoints – Active

34VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL· Minimum Run Capacity – The Minimum Run Capacity is the minimum capacity the com-pres

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36VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLMotor Speed Setpoints & Control ScreenVFD SCREEN SETTINGSSettings:Auto Button:Choos

37VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL 8. Max Speed Detect: Setting for PLC program detection of maximum speed. This sett

38VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLDiagnostics Force OutputTo force an output, a user with high level access must be logge

39VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLInstrument CalibrationTo calibrate, a user with high level access must be logged on fir

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40VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLInstrument Calibration

41VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLInstrument Calibration PressuresConfirm the “mA Reading” value (the raw mA value at the

42VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLInstrument Calibration Motor AmpsConfirm the “mA Reading” value (the raw mA value at th

43VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLInstrument Calibration TemperaturesAll RTDs are 100 ohm Pt and are scaled as such via h

44VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLOptional Temperature Transducers can be used in place of standard RTDs.Confirm the “mA

45VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLOil Mixing ValveVarious types of oil coolers can be used to maintain the oil injection

46VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL3.0 Initial Position3.1 With the electrical power to the valve de-energized, th

47VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL8.2 Disconnect electrical leads at actuator.8.3 Remove four cap screws that fas

48VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLUnit Start Screen (Start / Stop Logic)Unit Start ButtonPressing this button will invoke

49VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLStart In Auto ButtonIn this mode the compressor will respond to its on-board settings f

5VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLImportant Note ...

50VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLStop ButtonPressing this button will stop the compressor unit. If the compressor unit

51VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLDevice NamesTo change Device Name, go into the “Vilter Only” screen and press “Create D

52VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL1. Open the plastic cover of the capacity mo-tor by removing the four #10 screws. Cau-

53VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLCalibration Procedure of Optical Actuators Press down on the photochopper shaft to dis

54VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL15. Use the INC button to rotate the actuator towards its maximum position while watch-

55VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLCommand Shaft Rotation and TravelCompressor ModelCommand Shaft Rotation No. of Turns/Ro

56VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLInstallation Instructions For Replacement Of Optical Actuator CAUTION: WHEN INSTALLING

57VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLSlide Valve Actuator Theory of OperationSlide Valve Actuator Theory of OperationThe sli

58VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLProblem Reason SolutionThe actuator cannot be calibrated or exit calibration modeDirt o

59VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLProblem Reason SolutionThe actuator does not transmit the correct position after a powe

6VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLVSG/VSSG STANDARD VILTER WARRANTY STATEMENTSeller warrants all new single screw gas comp

60VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLFlash Pattern Meaning*=ON_=OFF*_*_*_*_*_*_*_*_*_*_*_Calibration step 1*___*___*___*___*

61VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CL*There are two versions of slide valve actuators, version A and B. Only version B is ab

62VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLSuction Pressure SP#1 Fail - This message will appear when the suction pressure falls

63VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLSafety Failure MessageOil Separator Start Temp Fail – This message will appear when

64VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLSafety Failure MessageFilter Inlet Pressure Fail – This message will appear with th

65VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLVersion ScreenThis screen lists a hard-coded version description of the PanelView-Plus

66VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLThe trend analysis screens display historic data of the last 300,000 records of analog

67VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLTrend ChartsThe standard values recorded are:Pressures - displayed on page 1: Suction

68VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLTroubleshooting:Problem: Trend charts no longer display historical data but only update

69VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLCaptured Data at ShutdownThe Captured at Shutdown screen shows data captured prior to c

7VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLOperational Flow ChartsVolume and Capacity slides are less than 5 %.Requirements to Star

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35391CL Rev. 8 (8/13) Emerson and Vilter are trademarks of Emerson Electric Co. or one of its affi liated companies. © 2013 Emerson Climate Technologi

8VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLSuction Pressure Control Is Suction Press > Suct Press Cap IncSetpt? Is

9VSG/VSSG • Compact Logix PLC Manual •Vilter/Emerson • 35391CLOil Cooler Fan Control (Selectable Control Optional)Increase SpeedDecrease SpeedUnit Sta