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APPENDIX D
—
VFD INFORMATION (CONT)
START-UP WITH CARRIER ASSISTANT
Initial start-up has been performed at the factory. If a VFD has
been replaced, start up the VFD with the Carrier Assistant us
-
ing the following procedure.
NOTE: To change certain VFD parameters, the VFD must be
in the OFF mode. To ensure the VFD is in the OFF mode prior
to running the Carrier Assistant, it is recommended that you
turn the drive OFF manually by pressing the OFF button on the
VFD keypad. After completion of the Carrier Assistant, press
the AUTO button on the VFD keypad to return to RUN mode.
1. Place the
Comfort
link controls in Service Test mode (
Ser
-
vice Test
TEST
= ON).
2. With the VFD in the OFF mode, select MENU (SOFT
KEY 2). The Main menu will be displayed.
3. Use the UP or DOWN keys to highlight ASSISTANTS on
the display screen and press ENTER (SOFT KEY 2).
4. Use the UP or DOWN keys to highlight Carrier Assistant
and press SEL (SOFT KEY 2).
5. The Carrier Assistant will ask questions to determine the
correct parameters for the VFD.
a. The Carrier Assistant will ask, “Select an App 1-3”:
1. Air Handler
2. Roof Top
3. Other Application
b. Use the UP or DOWN keys to highlight Roof Top and
press OK (SOFT KEY 2).
c. The Carrier Assistant will ask “Is this a Hi E or Pre
-
mium E motor?” :
Hi E
Premium E
d. Use the UP or DOWN keys to highlight the correct
motor efficiency and press OK (SOFT KEY 2).
e. The Carrier Assistant will ask “Is this a Non-LEN
VFD or LEN VFD?” :
Non-LEN VFD
LEN VFD
f. Use the UP or DOWN keys to highlight LEN VFD
and press OK (SOFT KEY 2).
g. The Carrier Assistant will ask “Is this an IFM VFD or
P.E. motor VFD?” :
IFM VFD
P.E. motor VFD
h. Use the UP or DOWN keys to highlight the correct
VFD and press OK (SOFT KEY 2).
6. The keypad will display “Carrier Assistant Complete”.
The parameters in Table B will now be set correctly. Press
OK (SOFT KEY 2) then EXIT (SOFT KEY 1) to return to
the Main Menu. Press EXIT (SOFT KEY 1) again to
return to the Standard Display mode.
7. To allow the configuration parameters in Tables C and D
to be sent to the VFD, power must be cycled to the drive.
Cycle power using Service Test mode.
a. For Supply Fan VFD, set
Service Test
FANS
S.FAN
= OFF. Allow VFD to power down completely
(approximately 30 seconds) and then turn back ON.
b. For Exhaust Fan VFD, set
Service Test
FANS
P.E.1
= OFF. Allow VFD to power down completely
(approximately 30 seconds) and then turn back ON.
8. Press the AUTO button on VFD Keypad.
9. Take the
Comfort
link controls out of Service Test mode
(
Service Test
TEST
= OFF).
START-UP BY CHANGING PARAMETERS INDIVIDUALLY
Initial start-up is performed at the factory. To start up the VFD
with by changing individual parameters, perform the following
procedure:
1. Select MENU (SOFT KEY 2). The Main menu will be
displayed.
2. Use the UP or DOWN keys to highlight PARAMETERS
on the display screen and press ENTER (SOFT KEY 2).
3. Use the UP or DOWN keys to highlight the desired
parameter group and press SEL (SOFT KEY 2).
4. Use the UP or DOWN keys to highlight the desired
parameter and press EDIT (SOFT KEY 2).
5. Use the UP or DOWN keys to change the value of the
parameter.
6. Press SAVE (SOFT KEY 2) to store the modified value.
Press CANCEL (SOFT KEY 1) to keep the previous
value. Any modifications that are not saved will not be
changed.
7. Choose another parameter or press EXIT (SOFT KEY 1)
to return to the listing of parameter groups. Continue until
all the parameters have been configured, and then press
EXIT (SOFT KEY 1) to return to the main menu.
NOTE: The current parameter value appears above the high
-
light parameter. To view the default parameter value, press
the UP and DOWN keys simultaneously. To restore the de
-
fault factory settings, select the application macro “HVAC
Default.”
VFD Modes
The VFD has several different modes for configuring, operat
-
ing, and diagnosing the VFD. The modes are:
• Standard Display mode — shows drive status information
and operates the drive
• Parameters mode — edits parameter values individually
• Start-up Assistant mode — guides the start-up and
configuration
• Changed Parameters mode — shows all changed parameters
• Drive Parameter Backup mode — stores or uploads the
parameters
• Clock Set mode — sets the time and date for the drive
• I/O Settings mode — checks and edits the I/O settings
STANDARD DISPLAY MODE
Use the standard display mode to read information on the drive
status and operate the drive. To reach the standard display
mode, press EXIT until the LCD display shows status informa
-
tion as described below. See Fig. C.
The top line of the LCD display shows the basic status infor
-
mation of the drive. The HAND icon indicates that the drive
control is local from the control panel. The AUTO icon indi
-
cates that the drive is in remote control mode, such as the basic
I/O (X1) or field bus.
The arrow icon indicates the drive and motor rotation status. A
rotating arrow (clockwise or counterclockwise) indicates that
the drive is running and at set point and the shaft direction is
forward or reverse. A rotating blinking arrow indicates that the
drive is running, but not at set point. A stationary arrow indi
-
cates that the drive is stopped. For Carrier rooftop units, the
correct rotation is counterclockwise.
The upper right corner shows the frequency set point that the
drive will maintain.
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 ...