Carrier WeatherExpert 48N2 Controls, Start-Up, Operation, Service, And Troubleshooting page 233

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 Comfortlink 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 Comfortlink controls out of Service Test mode
(Service Test  TEST = OFF).
APPENDIX D — VFD INFORMATION (CONT)
233
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.