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Vission 20/20 • Operation and Service Manual •Vilter/Emerson • 35391SC 2.0
Appendix B • Vission 20/20 Application Procedures
Figure B-12. Serial Communication Ports on Single Board Computer
P12 = RS485 Serial Modbus RTU connector *
P14, P18 = USB Serial Modbus RTU connectors
P8 = Ethernet RJ45 connector
The 20/20 offers two solutions for serial communications. The fi rst option is connector P12 which uses tradi-
tional serial UART hardware. The second option uses the USB ports, P14 or P18. These ports require the use of
an inexpensive, industrial USB to RS422/RS485 convertor. Vilter can supply these, or you can purchase your own.
For serial communications, we recommend using the USB ports, fi rst because of the robustness of the USB ports.
They also offer increased speed. The third reason is that computer manufacturers are steering serial network us-
ers to move towards using the USB ports for serial communications.
- Important Message 5
- Table of Contents 10
- List of Tables and Figures 11
- How to Use This Manual 14
- Proper Wiring Sizing 17
- Voltage Source 17
- Wiring Methods 19
- Best Practices 20
- Digital Input/Output (I/O) 22
- Board I/O # Description Type 23
- Analog Outputs: 26
- Digital Output Boards 28
- Digital Input Boards 29
- Digital In-Out Boards 30
- Analog Input Boards 31
- Analog Input Jumper Tables 32
- Analog Output Boards 34
- Section 4 • Main Screen 35
- Section 5 • Menu Screen 41
- Auto-Cycle 44
- Settings Control 47
- Rapid Cycling VFD Control 49
- Pumpdown Control 50
- Pulldown Control 50
- Control Mode 53
- Stop Load and Force Unload 53
- 6 – 16 / Blank 58
- Section 7 • Alarms and Trips 59
- Section 8 • Timers 65
- 8 – 4 / Blank 68
- Scheduling Setpoint 69
- Capacity Load/Unload Timers 72
- Compressor Sequencing Table 73
- Table 10-1. Status Symbols 74
- Symbol Description 74
- Confi guration Overview 75
- SEQUENCING 77
- 10 – 8 / Blank 78
- Condenser Control Setpoint: 79
- Section 12 • Service Options 83
- 12 – 6 / Blank 88
- Motor Current 90
- Remote Capacity 92
- Slide Valve Operation 96
- Figure 14-4. Photo-chopper 99
- Command Shaft Rotation 100
- *-*-*-*-*-*-*-*-*-*-*-* 103
- *---*---*---*---*---* 103
- *--* 103
- * 103
- *****----* 104
- *--*--* 104
- ********************* 104
- -******************** 104
- Section 15 • Trend Chart 105
- 15 – 4 / Blank 108
- Section 16 • Event List 109
- 16 – 2 / Blank 110
- Section 17 • Input / Output 111
- Overview 115
- Digital Inputs 115
- Digital Outputs 116
- Analog Inputs 116
- Analog Outputs 118
- Section 19 • Configuration 121
- Time & Date 122
- Communications 122
- Touchscreen 122
- Compressor Control 124
- Optional Function Selection 124
- Vilter Only Settings 125
- Condenser Control 125
- Oil Pump 125
- Oil Cooling 125
- Motor Current Device 126
- I/O Confi guration 130
- Section 20 • Data Backup 131
- Save / Load 131
- Factory Reset 133
- Setpoints Report 134
- Section 21 • Maintenance 135
- Checklist 135
- 21 – 4 / Blank 138
- Section 22 • User Access 139
- Manage Accounts 140
- VNC Account 142
- Screen Security Levels 142
- Section 23 • Help Screen 143
- Screen Features 143
- Setup - Confi guration Screen 145
- Operation 146
- Potentiometer 146
- Twin Screw Oil Pressure 148
- COMPRESSOR STARTS 149
- 24 – 6 / Blank 150
- Control Functions 152
- Remote Oil Cooler Setpoint 155
- Step Control 156
- VFD Settings 156
- 26 – 4 / Blank 158
- A - 2 / Blank 160
- Contents 161
- B - 2 / Blank 162
- Pulldown 163
- COMPRESSOR CONTROL MENU 163
- SETPOINT SELECTION EXAMPLE 164
- Pulldown OPERATION EXAMPLE 165
- B - 6 / Blank 166
- Setpoints Setup 167
- CONTROL MODE DROPDOWN BOX 169
- SAFETY SETPOINTS 169
- SETPOINT 2 SELECTION 169
- 1 AND SETPOINT 2 SELECTION 170
- OVERVIEW 171
- CONFIGURATION OVERVIEW 171
- SEQUENCING SLAVE COMPRESSORS 172
- Table B-1. Status Symbols 176
- UNLOADING 177
- SLAVE EXPERIENCING A FAILURE 178
- Database Backup Procedure 179
- CONFIGURATION INFORMATION 181
- REPLACE FLASH CARD 181
- B - 24 / Blank 184
- User Access Menu 185
- Confi guration 186
- Data Backup 186
- 20/20 Panel 187
- (VPN3485C) on USB port P18 189
- NETWORK TOPOLOGY 191
- CONVERTOR 191
- REPEATER 192
- ETHERNET NETWORK TOPOLOGY 194
- ACCESS VIA INTERNET 195
- Example 1 195
- Example 2 196
- Example 3 196
- Example 4 197
- VNC CLIENTS 197
- COMMUNICATIONS 198
- RESTART ON POWER FAILURE 203
- VIA COMMUNICAITONS 203
- Control Selection 204
- CONTROL SCENARIO 206
- REMOTE MONITORING 207
- COMMUNICATION PORT SETUP 207
- B - 48 / Blank 208
- Phoenix Contact PSM-ME-RS485/ 209
- RS485-P Isolator 209
- Figure B-27. Network Noise 210
- INTRODUCTION 211
- Installed Boards 211
- Auxiliary Analog Inputs 214
- Trip Setup 215
- Control – PID Level Control 216
- CHILLER LEVEL CONTROL 216
- CONDENSER LEVEL CONTROL 217
- VISSION 20/20 SOFTWARE SETUP 221
- Valve Confi guration 223
- B - 64 / Blank 224
- HARDWARE WIRING 227
- Valve Control PID parameters 232
- Calculated Values 235
- Statuses 236
- Commands 238
- Setpoints 239
- Auto Cycle 240
- Pumpdown 241
- Compressor VFD 243
- Cool Compression 243
- Alarms/Trips (Page 244
- Alarms/Trips 245
- (Page 2) 245
- (Page 3) 245
- Compressor 247
- Scheduling (Military 247
- Sequencing 254
- Word 1 Word 2 259
- Word 1 Word 2 Word 3 260
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