Emerson VSG & VSSG Specifications download pdf (Page 52)

3 – 6

Section 3 • Overview Screens

Single Screw Compressor PLC Operation Manual • Vilter/Emerson • 35391CM

Figure 3-6. Refrigeration Compressor Unit Overview Screen Example 2,

VSM-601 Compressor Unit Gas Chiller for R134a

Refrigeration Compressor Unit Overview Screen Example 2

VSM-601 Compressor Unit Gas Chiller for R134a

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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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Emerson VSG & VSSG Specifications Page 52

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