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232
VFD Operation
The VFD keypad is shown in Fig. B. The function of SOFT
KEYS 1 and 2 change depending on what is displayed on the
screen. The function of SOFT KEY 1 matches the word in the
lower left-hand box on the display screen. The function of
SOFT KEY 2 matches the word in the lower right-hand box on
the display screen. If the box is empty, then the SOFT KEY
does not have a function on that specific screen. The UP and
DOWN keys are used to navigate through the menus. The OFF
key is used to turn off the VFD. The AUTO key is used to
change control of the drive to automatic control. The HAND
key is used to change control of the drive to local (hand held)
control. The HELP button is used to access the help screens.
Fig. B — VFD Keypad
APPENDIX D
—
VFD INFORMATION (CONT)
Table E — VFD
Comfort
Link Control Variables
PARAMETER GROUP
PARAMETER TITLE
PARAMETER INDEX
CCN POINT
SUPPLY FAN VFD
CCN POINT
EXHAUST FAN VFD
Actual Signals
FB STS WORD 1
303
VFD1STAT
VFD2STAT
Not Available
SPEED (%)
Not Available
VFD1_SPD
VFD2_SPD
Operating Data
SPEED
102
VFD1RPM
VFD2RPM
OUTPUT FREQ
103
VFD1FREQ
VFD2FREQ
CURRENT
104
VFD1AMPS
VFD2AMPS
TORQUE
105
VFD1TORQ
VFD2TORQ
POWER
106
VFD1PWR
VFD2PWR
DC BUS VOLTAGE
107
VFD1VDC
VFD2VDC
OUTPUT VOLTAGE
109
VFD1VOUT
VFD2VOUT
DRIVE TEMP
110
VFD1TEMP
VFD2TEMP
RUN TIME (R)
114
VFD1RUNT
VFD2RUNT
KWH COUNTER (R)
115
VFD1KWH
VFD2KWH
DI1 STATUS
118
VFD1_DI1
VFD2_DI1
DI2 STATUS
118
VFD1_DI2
VFD2_DI2
DI3 STATUS
118
VFD1_DI3
VFD2_DI3
DI4 STATUS
119
VFD1_DI4
VFD2_DI4
DI5 STATUS
119
VFD1_DI5
VFD2_DI5
DI6 STATUS
119
VFD1_DI6
VFD2_DI6
AI1
120
VFD1_AI1
VFD2_AI1
AI2
121
VFD1_A12
VFD2_A12
Fault History
LAST FAULT
401
VFD1LFC
VFD2LFC
Table F — VFD
Comfort
Link Command Variables
PARAMETER GROUP
PARAMETER TITLE
PARAMETER INDEX
CCN POINT
SUPPLY FAN VFD
CCN POINT
EXHAUST FAN VFD
Actual Signals
FB CMD WORD 1
301
Not Available
Not Available
Not Available
SPEED REF (%)
Not Available
SFAN_VFD
EFAN_VFD
Operating Data
COMM RO WORD -
(RELAY OUTPUT 1)
134
VFD1REL1
VFD2REL1
COMM RO WORD -
(RELAY OUTPUT 2)
134
VFD1REL2
VFD2REL2
COMM RO WORD -
(RELAY OUTPUT 3)
134
VFD1REL3
VFD2REL3
COMM VALUE 1 - (AO1)
135
VFD1_AO1
VFD2_AO1
COMM VALUE 2 - (AO2)
136
VFD1_AO2
VFD2_AO2
Summary of Contents for WeatherExpert 48N2
Page 135: ...135 Fig 18 48 50N Typical Power Schematic Nominal 075 Ton Unit Shown ...
Page 136: ...136 Fig 19 48 50N Typical Power Schematic Nominal Ton 90 150 Units Shown ...
Page 137: ...137 Fig 20 48 50N Main Base Board Input Output Connections ...
Page 138: ...138 Fig 21 48 50N RXB EXB CEM Input Output Connections a48 9307 ...
Page 139: ...139 Fig 22 48 50N EXV SCB Input Output Connections a48 9308 ...
Page 140: ...140 Fig 23 48N Typical Modulating Gas Heat Unit Control Wiring ...
Page 141: ...141 Fig 24 50N Typical Electric Heat Unit Control Wiring ...
Page 144: ...144 Fig 27 48N Typical Gas Heat Section Wiring Nominal Ton 120 to 150 Units ...
Page 145: ...145 Fig 28 48 50N Typical Power Component Control Wiring 460 v ...
Page 146: ...146 Fig 29 48 50N Component Control Wiring 575 v Nominal Ton 075 to 150 Units ...
Page 147: ...147 Fig 30 48 50N Component Arrangement Power Box ...
Page 148: ...148 Fig 31 48 50N Component Arrangement Control Box ...
Page 240: ...240 APPENDIX D VFD INFORMATION CONT Fig G VFD Bypass Wiring Diagram WHEN USED ...