Upload All Parameters; Download All Parameters; Clock Set Mode; I/O Settings Mode - Carrier 39LA-25 Installation, Start-Up And Service Instructions Manual

recommended to create a backup of the parameters group for the
drive.
The second option downloads only the application parameters to
the drive. Parameters 9905, 9906, 9907, 9908, 9909, 1605, 1607,
5201, and group 51 parameters and internal motor parameters are
not copied.

UPLOAD ALL PARAMETERS

To upload and store all parameters to the control panel from the
VFD, perform the following procedure:
1. Select MENU (SOFT KEY 2). The Main menu will be dis-
played.
2. Use the UP or DOWN keys to highlight PAR BACKUP on
the display screen and press ENTER (SOFT KEY 2).
3. Use the UP or DOWN keys to highlight UPLOAD TO
PANEL and press SEL (SOFT KEY 2).
4. The text "Copying Parameters" will be displayed with a prog-
ress indicator. To stop the process, select ABORT (SOFT
KEY 1).
5. When the upload is complete, the text "Parameter upload suc-
cessful" will be displayed.
6. The display will then return to the PAR BACKUP menu.
Select EXIT (SOFT KEY 1) to return to the main menu.
7. The control panel can now be disconnected from the drive.

DOWNLOAD ALL PARAMETERS

To download all parameters from the control panel to the VFD,
perform the following procedure:
1. Install the control panel with the correct parameters onto the
replacement VFD.
2. Select MENU (SOFT KEY 2). The Main menu will be dis-
played.
3. Use the UP or DOWN keys to highlight PAR BACKUP on
the display screen and press ENTER (SOFT KEY 2).
4. Use the UP or DOWN keys to highlight DOWNLOAD TO
DRIVE ALL and press SEL (SOFT KEY 2).
5. The text "Restoring Parameters" will be displayed with a
progress indicator. To stop the process, select ABORT (SOFT
KEY 1).
6. When the download is complete, the text "Parameter down-
load successful" will be displayed.
7. The display will then return to the PAR BACKUP menu.
Select EXIT (SOFT KEY 1) to return to the main menu.
8. The control panel can now be disconnected from the drive.

CLOCK SET MODE

The Clock Set mode is used for setting the date and time for the in-
ternal clock of the VFD. In order to use the timer functions of the
VFD control, the internal clock must be set. The date is used to de-
termine weekdays and is visible in the fault logs.
To set the clock, perform the following procedure:
1. Select MENU (SOFT KEY 2). The Main menu will be dis-
played.
2. Use the UP or DOWN keys to highlight CLOCK SET on the
display screen and press ENTER (SOFT KEY 2). The clock
set parameter list will be displayed.
3. Use the UP or DOWN keys to highlight CLOCK VISIBIL-
ITY and press SEL (SOFT KEY 2). This parameter is used to
display or hide the clock on the screen. Use the UP or DOWN
keys to change the parameter setting. Press OK (SOFT KEY
2) to save the configuration and return to the Clock Set menu.
4. Use the UP or DOWN keys to highlight SET TIME and press
SEL (SOFT KEY 2). Use the UP or DOWN keys to change
the hours and minutes. Press OK (SOFT KEY 2) to save the
configuration and return to the Clock Set menu.
5. Use the UP or DOWN keys to highlight TIME FORMAT and
press SEL (SOFT KEY 2). Use the UP and DOWN keys to
change the parameter setting. Press OK (SOFT KEY 2) to
save the configuration and return to the Clock Set menu.
6. Use the UP or DOWN keys to highlight SET DATE and
press SEL (SOFT KEY 2). Use the UP or DOWN keys to
change the day, month, and year. Press OK (SOFT KEY 2) to
save the configuration and return to the Clock Set menu.
7. Use the UP or DOWN keys to highlight DATE FORMAT
and press SEL (SOFT KEY 2). Use the UP or DOWN keys
to change the parameter setting. Press OK (SOFT KEY 2) to
save the configuration and return to the Clock Set menu.
8. Press EXIT (SOFT KEY 1) twice to return to the main menu.

I/O SETTINGS MODE

The I/O Settings mode is used for viewing and editing the I/O
settings.
To configure the I/O settings, perform the following procedure:
1. Select MENU (SOFT KEY 2). The Main menu will be dis-
played.
2. Use the UP or DOWN keys to highlight I/O SETTINGS on
the display screen and press ENTER (SOFT KEY 2). The I/O
Settings parameter list will be displayed.
3. Use the UP or DOWN keys to highlight the desired I/O set-
ting and press SEL (SOFT KEY 2).
4. Use the UP or DOWN keys to select the parameter to view.
Press OK (SOFT KEY 2).
5. Use the UP or DOWN keys to change the parameter setting.
Press SAVE (SOFT KEY 2) to save the configuration. Press
CANCEL (SOFT KEY 1) to keep the previous value. Any
modifications that are not saved will not be changed.
6. Press EXIT (SOFT KEY 1) twice to return to the main menu.

Install Sheaves on Motor and Fan Shafts

Factory-supplied drives are prealigned and tensioned, however,
Carrier recommends that you check the belt tension and alignment
before starting the unit. Always check the drive alignment after
adjusting belt tension.
When field installing or replacing sheaves, install sheaves on fan
shaft and motor shaft for minimum overhang. (See Fig. 28.) Use
care when mounting sheave on fan shaft; too much force may
damage bearing. Remove rust-preventative coating or oil from
shaft. Make sure shaft is clean and free of burrs. Add grease or lu-
bricant to bore of sheave before installing.
The 39L fan, shaft, and drive pulley are balanced as a complete as-
sembly to a high degree of accuracy. If excessive unit vibration is
present after fan pulley replacement, the unit must be rebalanced.
For drive ratio changes, always reselect the motor pulley — do not
change the fan pulley.
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