Vfd Configuration; Start-Up By Changing Parameters; Vfd Modes - Carrier Aero 39MN Series Installation, Start-Up And Service Instructions Manual

VFD Configuration —
Fig. 123. The function of SOFT KEYS 1 and 2 change depend-
ing on what is displayed on the screen. The function of SOFT
KEY 1 matches the word in the lower left-hand box on the dis-
play 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 auto-
matic 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.
a39-2918
Fig. 123 — VFD Keypad (P/N ACH-CP-H)
START-UP WITH ASSISTANT — The initial start-up has
been performed at the factory. To start up the VFD with the
Start-Up Assistant, 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 Commission
Drive and press SEL (SOFT KEY 2).
4. The Start-Up Assistant will display the parameters that
need to be configured. Select the desired values and
press SAVE (SOFT KEY 2) after every change. The
process will continue until all the parameters are set.
START-UP BY CHANGING PARAMETERS INDIVIDU-
ALLY — 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 PARAME-
TERS on the display screen and press ENTER (SOFT
KEY 2).
3. Use the UP and 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 pa-
rameter 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 val-
ue. Press CANCEL (SOFT KEY 1) to keep the previ-
ous 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.
The VFD keypad is shown in
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
highlighted 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."
The VFD has several different modes
VFD Modes —
for configuring, operating, and diagnosing the VFD. The
modes are:
• Standard Display mode — shows drive status informa-
tion 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 param-
eters
• 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 Dis-
play 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. 124.
MODE
Fig. 124 — Standard Display Example
The top line of the LCD display shows the basic status in-
formation 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 control is in remote control mode through
the I/O.
The arrow icon indicates the drive and motor rotation status.
A rotating arrow (clockwise or counterclockwise) indicates
that the drive is running. 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 Carrier air handler units,
the rotation is always forward.
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 Hz, 0104
(CURRENT) in amperes, and AI1 (Analog Input 1) in revolu-
tions per minute.
The upper right hand corner shows the frequency set point
that the drive will maintain.
The bottom corners of the LCD display show the functions
currently assigned to the two soft keys. The lower middle dis-
plays 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 the HAND or AUTO but-
tons. Pressing the HAND button switches the drive to hand
control while keeping the drive running. Pressing the AUTO
button switches the drive to remote input control. The OFF but-
ton stops the drive. To return to auto control, press the AUTO
149
SET POINT