BIG ASS FANS 8'-24' Powerfoil X, Installation Manual

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8’ - 24’ POWERFOIL® X
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8’ - 24’ POWERFOIL® X
To select the command source of the fan, press the PU (Programmer/User) button. The fan controller is programmed at
the factory to accept digital and analog inputs from customer automation systems for start/stop and speed commands, or
to be directly controlled from the wall control unit. Upon power-up, the fan puts priority on external commands provided by
automation systems or other fans (see “Basic Distributed I/O Interface” and “Daisy Chaining”).
To operate the fan from the wall control, press the PU button to make sure that the PU indicator is illuminated. The RUN,
STOP, and FWD/REV buttons are functional only when the PU indicator is illuminated.
STOP RUN JOG FWD REV EXT PU
U
F
H
EXTERNAL AUTOMATION
CONTROL ENABLED
PU
STOP RUN JOG FWD REV EXT PU
U
F
H
WALL CONTROL
COMMANDS ENABLED
PU
“EXT” is Illuminated “PU” is Illuminated
As long as the PU indicator is illuminated on the wall control (shown above), starting or stopping the fan is
controlled by the RUN and STOP/RESET buttons.
When the RUN button is pressed, the STOP LED extinguishes and the RUN LED illuminates while the fan accelerates to the
commanded speed.
To decelerate the fan, press the STOP/RESET button. The RUN LED will flash, indicating that the fan controller has accepted the
command, and the STOP LED illuminates.
Proper fan rotation is initially set at the factory. To reverse the rotation of the fan, press the FWD/REV button. The fan does
not have to be stopped in order to perform this action. When pressed while the fan is running, the current directions FWD or
REV LED will flash, indicating a pending change in fan direction.
Note: The RUN, STOP/RESET, and FWD/REV buttons are disabled while External Automation Control is enabled (EXT LED
illuminated.)
Toggling the Fan’s Command Source
PU
Starting, Stopping, and Direction Control
RUN
STOP
RESET
Changing the Fan Speed
As long as the PU indicator is illuminated, the UP, DOWN, LEFT, and RIGHT arrow buttons can be
used to adjust the fan speed, which can be performed when the fan is stopped or running.
The UP and DOWN arrow buttons control the fan speed command. In an effort to accelerate this
process, press either the LEFT or RIGHT arrow button to select which digit is controlled by the UP and
DOWN buttons. Allowing selection of the digit can make changing the fan speed a very fast or very
accurate operation.
Changing the fan speed can be performed regardless of Main LED Display mode, with the exception
of the Memory Read/Write screen. When one of the direction keys is pressed, the current display
mode is forced to change to the Fan Freq. Command screen as shown on the left.
STOP RUN JOG FWD REV EXT PU
U
F
H
FAN FREQ. COMMAND
FWD
REV