DOOR CONTROL
FireSafe
Manual
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1 Description of control unit
The FireSafe is a control unit intended for use (in combination with a GfA or Kostal electrical drive
that has a digital limit switch) on industrial doors that need to close in the event of an
emergency. When used in combination with an emergency power supply, the door will close
even if there is a power failure. The opening and closing movements in normal mode can be set
to deadman or automatic operation (impulse) via a menu. The buttons on the unit and the
external up-stop-down controls are used for operation. Operation is also possible using impulse
control. There is an input to turn the controls on or off.
The cover has an LED that lights up green in normal mode and red in the event of a fault, fire or
power failure. The cause of the red LED is then shown on the control PC board display.
The control unit can be fitted with an emergency power supply so that the door can still close
even if there is a power failure. The door will close if there is a fire or if the batteries of the
emergency power supply are nearly flat. A test function allows you to close the door using the
emergency power supply to check that it is working properly. An escape pushbutton can be used
to open the door in an emergency if there is still mains power and the emergency power supply
batteries have sufficient capacity. You can also specify that the door can still be opened with the
open button, and that when it is released the door immediately closes again. Here too, this is
only possible if there is still a mains power supply and the batteries have sufficient capacity.
In normal mode, the door will descend until the "closed" limit switch has been reached. You can
specify, for the event of a fire or when the battery voltage is low, whether the door should stop
when the normal "closed" limit switch is reached or when the "overclose" limit switch is reached.
The "overclose" limit switch position is set via the menu. It should be set further on than the
"closed" limit switch so that the door closes further than in normal mode.
If the door is moving, a potential-free make-and-break contact to which a siren or other alarm
signal can be connected, is switched. The contact will also be switched if you specify in the menu
settings that a pre-warning should be issued before the door closes. This stops when the door
stops moving.
A potential-free make-and-break contact, to which a siren or other alarm signal can also be
connected, will also switch in the event of a fire or if the battery for the emergency power supply
is nearly flat.
There are also a number of outputs with the same common that can be used to send various
messages.
There is the option to connect a detection device to detect persons/objects under the door. This
could be a detection device operated by air pressure contact (in combination with 1.2KΩ), an
8.2KΩsafety edge or opto sensors. If you choose automatic closing in normal mode, the door will
stop and open fully or simply stop if the detection device is triggered.
The detection device can remain enabled or be turned off in the event of a fire. The delay time
until the door continues descending after the detection device is triggered can be specified in the
menu. For the event that there is still a power supply, you can also specify that the door should
open fully and then close again when the detection device is triggered in a fire or when the
battery capacity is low.
