Emerson VSG & VSSG Specifications Page 130
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- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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Section 11 • Alarms, Trips, Status Information & Troubleshooting
Single Screw Compressor PLC Operation Manual • Vilter/Emerson • 35391CM
Status Messages and Compressor State Indicator
Status messages are used to indicate compressor status information to the user. Status messages are used to inform
the user of any of the following conditions.
• Anti-Recycle Timer is active
• Compressor is in standby mode and is waiting for one or more conditions to be met
• State of the Compressor Startup Sequence
• Load Limits and Forced Unloading
• Slide Calibration is active
• Compressor PLC has automatically reverted to Local-Auto mode on loss of communications with central con-
troller or DCS (if this function is enabled)
• A user is logged in
• An output is forced
• Scheduled Maintenance is due (if this function is enabled)
• Slide valve exercising is active (if this function is enabled)
Status messages are shown in a green scrolling banner at the top of the overview and menu screens.
Figure 11-3. Alarm/Trip/Status Bars (Main Menu Screen)
Status Message Notes
(S001) Status: Compressor Stopped Displayed in the Event List only
(S002) Status: Compressor Started Displayed in the Event List only
(S003) Status: NOT USED
(S004) Status: True Anti-Recycle Active: Remaining:
XX:XX
Shows remaining anti-recycle time
(S005) Status: NOT USED
(S006) Status: Waiting to Start: Discharge-Suction Not
Equalized
Compressor PLC is waiting for compressor Discharge-
Suction to be equalized to within a settable differential
before the compressor will start.
(S007) Status: Waiting to Start: Remote Run Permissive
Input
Compressor PLC is waiting for a contact closure on the
remote run permissive input before the compressor
will start
(S008) Status: Waiting to Start: Soft Run Permissive from
DCS/Central
Compressor PLC is waiting for a run command from
the central controller or DCS (if control by communica-
tions is enabled)
(S009) Status: Auto Cycle Stop - Suction Pressure Auto Start-Stop function is enabled and "Stop" Pressure
has been reached.
(S010) Status: Auto Cycle Stop - Process Temperature Auto Start-Stop function is enabled and "Stop"
Temperature has been reached.
Table 11-3. Status Listing
- Single Screw Compressor PLC 1
- Important Message 4
- Table of Contents 5
- List of Tables and Figures 10
- HOW TO USE THIS MANUAL 13
- ADDITIONAL IMPORTANT NOTES 13
- Glossary of Terms 14
- 23 678 5 19
- Wiring Requirements 21
- Overview 23
- Operational Descriptions and 24
- Diagrams 24
- COMPRESSOR STARTUP SEQUENCE 25
- AUTO START-STOP 26
- ANTI-RECYCLE 26
- CAPACITY SLIDE CONTROL 26
- OPERATING MODES 30
- DISCHARGE 31
- PRESSURE 31
- SUCTION 31
- VFD CAPCITY CONTROL 32
- VOLUME SLIDE CONTROL 32
- SAFETIES 32
- EMERGENCY STOP 32
- OIL HEATERS 33
- OIL DRAIN SOLENOID 33
- 2-WAY OIL MIXING VALVE 34
- OIL INJECTION VALVE 34
- OIL COOLER TEMPERATURES 35
- OIL COOLER STANDBY HEATER 35
- EVAPORATIVE CONDENSER 37
- OIL COOLER 38
- CONDENSER 39
- WATER COOLED GAS AFTERCOOLER 40
- WATER COOLED CONDENSER 41
- LIQUID INJECTION VALVE 42
- VPLUS LIQUID INJECTION PUMP 43
- DISCHARGE RECYCLE VALVE 44
- ECONOMIZER SOLENOID(S) 45
- HOTGAS BYPASS SOLENOID 45
- VENTURI OIL RECOVERY 45
- GAS SCRUBBERS 45
- BUILDING ENCLOSURE DEVICES 46
- PERIODIC SLIDE VALVE EXERCISE 46
- Section 3 • Overview Screens 47
- 3 – 8 / Blank 54
- Section 4 • HMI Navigation 55
- 4 – 10 / Blank 64
- DATE AND TIME 66
- REMOTE OPERATION 66
- PANELVIEW CONFIGURATION 68
- INITIAL RUNNING DATA 68
- DEVICE NAMES 68
- BACK TO MENU 68
- Editing Device Names 69
- INSTRUMENTATION 70
- ALARM AND TRIP 71
- Calibration Main Screen 73
- Pressure Calibration Screen 74
- CALIBRATE PRESSURE INSTRUMENT 75
- OPTION 1 75
- OPTION 2 75
- Slide Calibration Screen 78
- Figure 6-8. Actuator Assembly 80
- Figure 6-9. Photo-chopper 81
- 6 – 10 / Blank 82
- Setpoints and Control Screens 83
- Compressor Control Setpoints 84
- MAIN MOTOR VFD 86
- DISCHARGE PRESSURE CONTROL 87
- CAPACITY SLIDE VALVE 87
- AUTO START/STOP 88
- ANTI-RECYCLE 89
- START UP 89
- SHUT DOWN 89
- PART TIME OIL PUMP 90
- LOAD LIMITS 90
- VOLUME SLIDE ADJUSTMENT 90
- MAIN MOTOR FLA 90
- OIL SEPARATOR HEATERS 90
- 7 – 10 / Blank 92
- Alarm and Trip Setpoints 93
- Oil Mixing Valve Screen 95
- Aftercooler Screens 98
- Condenser Screens 101
- Volume Slide Details Screen 107
- Start Menu Popup Screen 108
- IO/Comms Diagnostics Screen 109
- Event List Screen 110
- 10 – 6 / Blank 114
- Alarm Listing 115
- Alarm Message Cause(s) Notes 117
- Trip Listing 123
- Trip Message Cause(s) Notes 124
- Status Message Notes 130
- Troubleshooting 134
- Communication with a Central 135
- Controller/DCS 135
- Compressor PLC 135
- Pressure Units 136
- Temperature Units 136
- Alarm and Trip Data 142
- Interface Tag Description 143
- Status Data 150
- States of Discrete I/O 154
- Table 12-8. State Indicator 159
- Table 12-9. Mode Indicator 159
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