Vfd Configuration; Vfd Modes - Carrier AERO 39MN Installation, Start-Up And Service Instructions Manual

VFD Configuration —
Fig. 88. 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
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.
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Fig. 88 — 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 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 PARAME-
TERS on the display screen and press ENTER (SOFT
KEY 2).
3. Use the UP and DOWN keys to highlight the desired pa-
rameter 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 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.
The VFD keypad is shown in
NOTE: The current parameter value appears above the high-
lighted 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 for
VFD Modes —
configuring, operating, 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 information as described below. See
Fig. 89.
MODE
Fig. 89 — 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
indicates that the drive control is in remote control mode
through the I/O.
The arrow icon indicates the drive and motor rotation sta-
tus. A rotating arrow (clockwise or counterclockwise) indi-
cates that the drive is running. A rotating blinking arrow indi-
cates that the drive is running but not at set point. A station-
ary 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
revolutions 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
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 pane, 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
button stops the drive. To return to auto control, press the
AUTO button. To start the drive press the HAND or AUTO
button, to stop the drive press the OFF button.
To adjust the speed set point while in HAND mode, press
the UP or DOWN buttons (the reference changes immediate-
ly). The reference can be modified in the local control
(HAND) mode, and can be parameterized (using Group 11
101
SET POINT
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