Carrier 48LC Series Installation Instructions Manual page 49

Single package rooftop gas heating/electric cooling unit with puron (r---410a) refrigerant sizes: 04, 05, 06
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Start Up with Assistant
Initial start- - up has been performed at the factory. Use of the
start up assistant will override factory VFD configurations.
DO NOT USE THE START- - UP ASSISTANT ON THESE
LC UNITS!
Start Up by Changing Parameters Individually
Initial start- - up is performed at the factory. To start up the
VFD 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 PARAMET-
ERS 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. Contin-
ue 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
highlight parameter. To view the default parameter value,
press the UP and DOWN keys simultaneously. To restore
the default factory settings, select the application macro
"HVAC Default."
VFD Modes
The VFD has several different modes for configuring,
operating, and diagnosing the VFD. The modes are:
S Standard Display mode  shows drive status
information and operates the drive
S Parameters mode  edits parameter values individually
S Start- - up Assistant mode  guides the start up and
configuration. DO NOT USE THE START- - UP
ASSISTANT ON THESE LC UNITS!
S Changed Parameters mode  shows all changed
parameters
S Drive Parameter Backup mode  stores or uploads the
parameters
S Clock Set mode  sets the time and date for the drive
S 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 information as described below. (See Fig. 75.)
The top line of the LCD display shows the basic status
information of the drive. The HAND icon indicates that
the drive control is local from the control panel. The
AUTO icon indicates 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 indicates that the drive is
stopped. For the units covered in this manual, the correct
display rotation is clockwise.
The upper right corner shows the frequency set point that
the drive will maintain.
Using parameter group 34, the middle of the LCD display
can be configured to display 3 parameter values. The
default display shows parameters 0103 (OUTPUT FREQ)
in percent speed, 0104 (CURRENT) in amperes, and 0120
(Al1) in voltage DC.
The bottom corners of the LCD display show the
functions currently assigned to the two soft keys. The
lower middle displays the current time (if configured to
show the time).
The first time the drive is powered up, it is in the OFF
mode. To switch to local hand- - held control and control
the drive using the control panel, press and hold the
HAND button. Pressing the HAND button switches the
drive to hand control while keeping the drive running.
Press the AUTO button to switch to remote input control.
To start the drive press the HAND or AUTO buttons, to
stop the drive press the OFF button.
100.0 %SP
1.9 A
10.0 Vdc
Fig. 75 - - Standard Display Example
To adjust the speed in HAND mode, press the UP or
DOWN buttons (the reference changes immediately). The
reference can be modified in the local control (HAND)
mode, and can be parameterized (using Group 11
reference select) to also allow modification in the remote
control mode.
49
60.0Hz
C09249

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