Applications Guide Tracer Graphical Programming - Trane

®
Figures
Figure 61: Latch block timing diagram, relationship
betweentriggerandoutput ................................. 60
Figure 62: Latch block timing diagram, relationship
betweentrigger,cancel,andoutput........................... 61
Figure63:LatchPropertiesdialogbox.......................... 62
Figure64:Alarmresetimplemented ........................... 62
Figure 65: Alarm reset module . . . . . . . . . . . . .................... 63
Figure 66: Alarm reset module . . . . . . . . . . . . .................... 64
Figure 67: Alarms module completed. . . . . . . .................... 65
Figure 68: Creating Wireless connection block . . . . . . . . . . . . ....... 67
Figure69:Wirelesswriteconnection........................... 67
Figure 70: Using Wireless connection block. . .................... 68
Figure71:Wirelessread...................................... 68
Figure 72: Input blocks for sump heater module . . . . . . . . . . . ....... 69
Figure 73: Output block for sump heater module . . . . . . . . . . ....... 69
Figure 74: Deadband incorporated in sump heater module . . ....... 70
Figure 75: Less Than or Equal comparison in sump heater module . . 70
Figure76:Sumpheatermodulecompleted...................... 71
Figure 77: Input blocks for the cooling tower fan module . . . ....... 72
Figure78:Outputblocksforthecoolingtowerfanmodule......... 72
Figure79:Startthefanatlowspeed ........................... 73
Figure80:Deadbandsusedtocontrolfanspeed ................. 74
Figure81:Addingthefanathighspeed......................... 75
Figure 82: Cooling tower fan module complete. . . . . . . . . . . . ....... 76
Figure 83: Completed cooling tower with two-speed fan program . . . 77
Chapter 5 Cooling tower with variable-speed fan example. 79
Figure84:Coolingtowerwithvariable-speedfandrivedata........ 81
Figure 85: Cooling tower with variable-speed fan drive
wiringdiagram............................................ 83
Figure 86: Alarms module completed. . . . . . . .................... 85
Figure87:Changeintemperaturecalculation.................... 86
Figure88:Wet-bulbtemperaturecalculation..................... 87
Figure 89: Calculations module complete . . . .................... 88
Figure90:Previouscoolingtowerfanmodule ................... 89
Figure91:Usingadeadbandtostartandstopthefan............. 89
Figure 92: Checking a setpoint against limits
usingtheMinandMaxblocks ............................... 90
Figure 93: Checking a setpoint against limits using the Limit block. . . 90
Figure94:PIDPropertiesdialogbox............................ 91
Figure 95: Cooling tower fan module complete. . . . . . . . . . . . ....... 94
CNT-APG001-EN
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