Eaton FC18, Руководство пользователя

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FC18 FAN CONTROLLER www.eaton.com
4. Fan controller operation
4.1. Operation process
4.1.1. Manual/auto key switch
A key switch is provided on the front of the Fan Controller
to enable/disable the buttons on the front fascia. This
key switch must be kept secure and only accessible by
authorised personnel who have been trained to use it
or by the Fire Brigade. The purpose of this key switch is
to prevent unauthorised activations of fans (i.e. by the
general public).
If the system enters a fire condition that effects the cause
and effect rules of the fan controller while it is in manual
mode it will not activate the fan control outputs but will
remember the fire condition. Once the fan controller
is back in the auto mode it will activate the fan control
outputs as per the fire condition and the cause and
effect rules.
4.1.2. Key switch in “manual”
When the fan controller key switch is set in manual mode
it enables the Start/Stop buttons for all 6 channels. The fan
controller can be placed into manual mode even when the
system is in a fire condition. This allows the Customer or
the Fire Brigade to manually activate or deactivate the fan
associated with each channel of the fan controller.
Pressing the “Start” button will cause the control device
for that channel to activate which will turn the fan on.
If the fan has no feedback mechanism then the “On”
LED will turn on automatically when the “Start” button
is pressed. If the fan does have a feedback mechanism
then the fan controller will expect to see the on signal
from the feedback device within 25s. If the on signal is
received within the time limit the “On” LED will turn on
and the “Off” LED will turn off, but if the on signal isn’t
received then the “Fault” LED will turn on. If the feedback
signal arrives after the 25s it will result in the “Fault” LED
to turn off, the “On” LED to be turned on and the “Off”
LED to turn off to show the current status of the fan.
Pressing the “Stop” button will cause the control device
for that channel to deactivate which will turn the fan off.
The fan controller expects to see the off signal from the
feedback device within 25s. If the off signal is received
within the time limit the “Off” LED will turn on and the
“On” LED will turn off, but if the off signal isn’t received
then the “Fault” LED will turn on. If the feedback signal
arrives after the 25s it will result in the “Fault” LED to
turn off, the “Off” LED to be turned on and the “On”
LED to turn off to show the current status of the fan.
4.1.3. Key switch in “auto”
When the fan controller key switch is set in automatic
mode it disables the Start/Stop buttons for all 6 channels
will only allow the channels to be activated by the cause
and effect programming of the Fire system.
When the Fire system receives a fire alarm signal that
effects the cause and effect rules of the Fan Controller
it will turn on the “Fire Activation” LED and activate the
associated fan as if someone had pressed the start button
for that channel (see manual Key Switch in “manual”
for more details).
4.1.4. Fault monitoring
If the fan controller receives a fault condition from either
the control device or the feedback device (if the fan has
feedback) it will result in the “Fault” LED turning on.
This also includes short circuit and open circuit conditions
between the feedback device and the fan itself.
4.1.5. Reset
A reset from any panel in the Fire system will not reset
the Fan Controller itself but may result in the control and
feedback devices being reset. This will require the Fan
Controller to be manually reset using the “Reset” button.
The key switch must be in the manual position in order for
the reset button to work.
Pressing the “Reset” button will reset the Fan Control
back to its quiescent condition and all output devices will
turn off.
4.1.6. Test LED
Pressing the “Test LED” button in auto or manual
mode will cause all of the LEDs to flash 3 times and then
return to showing the current state of the fan controller
channels.
PR209-166-505-08 January 2018