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Image 2–7 Hose with 90° angle female
coupling.
For chillers and hoses ordering information see Barco website.
2.3 Safety system
Safety controller
The projector is equipped with a safety controller which is located inside the mains compartment. This safety
controller operates independent from the projector electronics and has its own power supply. The safety
controller is connected with the beam stop button (reference 1
(reference 2
Image
2–9) of the projector. In case the beam stop button is pushed or the beam enable key is
switched off the safety controller immediately triggers the relay to disconnect the power from all Power Supply
Units (PSU) of the lasers.
Beam enable key
The beam enable key (reference 2
case the safety controller is triggered by an interlock event (internal or external) then, after restoring the
interlock, the beam enable key must be switched off and on to reset the safety controller. Otherwise, the lasers
can not be activated.
External beam enable key
The beam enable key is built-in but there is also a connection available for an additional, external switch which
is connected in series with the internal beam enable key. This means that both keys must be switched on to
power the PSUs of the lasers.
Beam stop button
The beam stop button (reference 1
button will result in disconnecting the power from all Power Supply Units (PSU) of the lasers. The beam stop
button requires a quarter turn to restore its normal operating position. After restoring the beam stop button the
beam enable key must be switched off and on to reset the safety controller.
External safety interlocks
Two external safety interlocks can be connected with the safety controller (e. g. to connect an infrared field
scanning device for the restricted HD area). In case an external safety interlock switch opens the safety
controller immediately opens relays to disconnect the power from all Power Supply Units (PSU) of the lasers.
The safety controller requires per interlock a double pole switch. It is not sufficient to break only one of the two
interconnections. Both contacts should be opened and closed simultaneously. If only one contact is opened
without the second one, the projector will not start up again after the contact is closed. To recover from such
an error, open and close the external interlock with both contacts simultaneously, then turn the beam enable
key off and on.
Both switch inputs should not be electrically interconnected in any way. An electrical connection between the
switches will be seen as an interlock open situation.
The connector (reference 3
compartment door. It is in the form of a 10 pole screw type removable terminal block (reference 5
Image 2–8 Hose with 90° angle male
coupling.
Image
2–9) must be in the "on" position to be able to activate the lasers. In
Image 2–
9) is easy accessible by the operator. Pushing the beam stop
Image 2–
9) for the external interlocks can be found behind the mains input
System overview
Image 2–
9) and the beam enable key
R5906150 /05
Image
2–9).
XDL
25
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