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VFD68 Variable Frequency Drives
41
VFD68Dxx Drives Operation Panel
Mode of Operation Icons
The VFD68 drive’s mode of operation is indicated by the mode of operation icons (labeled PU and EXT) on the
drive’s operation panel (Figure 30).
PU Mode:
The Parameter Units (PU) mode is manual control mode. In PU mode, the drive and motor are
completely controlled using the buttons and the setting dial on the drive’s user interface. No external analog
signals or network signals control the drive operation. The PU mode is typically used to set up, test, and
troubleshoot the drive and motor operation using controlled input signal values.
EXT Mode:
In the External (EXT) mode, the drive and motor respond to a signal or signals from one or two
(external) analog input signal devices, such as pressure transducers or analog controllers. This is the typical
mode of operation for the drive when it controls a condenser fan or other three-phase HVACR motor
application.
PU/EXT Mode:
In PU/EXT mode, the drive responds to the connected external signal devices and the drive
setup values can be edited. The PU/EXT mode is typically used to set up your drive for initial operation, or to
adjust setup parameters on an operating application.
MON Mode:
Shows motor speed represented as frequency (Hz) or RPM.
Display Code
Parameter Setting Mode:
When the display shows
Pr..
, the VFD68 drive displays parameter codes and
parameter setting values.
•
Press
or
to scroll through the parameter codes and to edit parameter setting values.
•
Press
to enter the 3-digit parameter code for viewing and editing.
Table 32: Operation Panel Keys (Part 1 of 2)
Key
Description
Used to give a start rotation command.
•
Used to stop operation.
•
Used to reset the VFD68 Drive when the output stops due to activation of the protection function.
Used to select the operation mode or setting mode.
SET
Figure 30: Operation Panel
Unit indication
Operation status
indication
Reverse key
Setting key
Mode key
RUN key
STOP/RESET key
Forward key
STOP/RESET key UP/DOWN key
COVER OPENED:
REV
SET
RESET
RUN
RUN
STOP
RESET
MODE