Carrier WEATHERMAKER 48/50AJ - Manual (Page 162)

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APPENDIX C — VFD INFORMATION (cont)
Table B — VFD Configurations
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.
START UP WITH ASSISTANT — Initial start-up has been
performed at the factory. To start up the VFD with the Start-Up
Assistant or reset the VFD with the Carrier defaults, 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 ASSISTANTS
on the display screen and press ENTER (SOFT KEY 2).
3. Use the UP or DOWN keys to highlight Carrier Assistant
and press SEL (SOFT KEY 2).
4. The Carrier Assistant will ask questions to determine the
correct parameters for the VFD. Select the desired values
and press SAVE (SOFT KEY 2) after every change. The
process will continue until all the parameters are set.
a. The Carrier Assistant will ask “Is this an Air
Handler or Rooftop?” Select “Rooftop.”
b. The Carrier Assistant will ask “Is this a High E or
Premium E motor?” Select the correct efficiency
type.
c. If the VFD can be used with two different size
(HP) motors, then the Carrier Assistant will ask the
user to choose the proper HP. Select the correct
motor horsepower.
START UP BY CHANGING PARAMETERS INDIVIDU-
ALLY — 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).
PARAMETER GROUP PARAMETER TITLE PARAMETER INDEX CARRIER DEFAULT
Start-Up Data
LANGUAGE 9901 ENGLISH
APPLIC MACRO 9902 USER 1
MOTOR CTRL MODE 9904 SCALAR: FREQ
MOTOR NOM VOLT 9905 460v
MOTOR NOM CURR 9906 *TBD*
MOTOR NOM FREQ 9907 60 Hz
MOTOR NOM SPEED 9908 1750 rpm
Start/Stop/Dir
EXT1 COMMANDS 1001 DI-1
DIRECTION 1003 REVERSE
Analog Inputs
MINIMUM AI1 1301 20.0 %
MAXIMUM AI1 1302 100.0 %
Relay Outputs
RELAY OUTPUT 1 1401 STARTED
RELAY OUTPUT 2 1402 RUN
RELAY OUTPUT 3 1403 FAULT (-1)
System Controls
RUN ENABLE 1601 NOT SELECTED
START ENABLE 1 1608 DI-4
OVER RIDE
OVERRIDE SEL 1701 DI-3
OVERRIDE FREQ 1702 60 Hz
OVERRIDE SPEED 1703 1750 rpm
OVER PASS CODE 1704 ENTERED
OVERRIDE 1705 ON
STOP FUNCTION 2102 RAMP
Accel/Decel
ACCELER TIME 1 2202 30.0s
DECELER TIME 1 2203 30.0s
MOTOR SWITCHING FREQ 2606 8 kHz
Fig. B — VFD Keypad
A39-2918