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22 1590 99 002_1 - 21. February 2011
By connecting the two connections and external door contact you can
prevent laser radiation from being emitted when the door of the laser room is opened.
This safety system serves to shut off the surgical beam automatically when the door is being opened
thus precluding any risk to the person entering.
The contact connector delivered is factory-fitted with a jumper. To connect a door interlock contact,
remove this jumper and connect your door interlock contact to the same terminals. The external
contact must be potential-free and designed for at least 24 VDC and 0.5 A. If a door-interlock
contact is not used, make sure to keep the plug with the factory-fitted jumper connected.
Important information
The contact plug may only be connected with the device being turned off and
disconnected from the power supply. Non-observan
ce of this instruction can cause
damages of the device.
The contacts for the remote interlock and the foot switch must never be conn
l
ine power because otherwise the system will be seriously damaged. Connect these two
connectors only in the way described in this section.
Tip
If you have connected the door interlock contact with the entrance door
every day before starting a treatment that the laser cannot be switched to the READY
mode with this door being open. In case of malfunction please inform the Technical
Service.
An external voltage source for a low-voltage warning lamp can be switched via two further contacts
of this connector. The internally installed switching relay is designed for a maximum voltage of
24 VAC and a maximum current of 1 A. Absolutely observe the following safety requirements for
the connection of an external warning lamp:
WARNING
To avoid
the risk of an electric shock with consequential serious health problems as well as
fire hazard of the transformer, if
you use an external transformer to power the lamp,
please note:
A safety transformer complying with IEC/EN61558-2-6 must be selected.
The internal relay of the device is closed, if the device is in the mode.
The prescribed laser warning lamp may, of course, also be turned on and off via a normal light
switch if the laser is operated.
4.2.5 Foot switch
Now, connect the foot switch to the foot switch connector provided at the rear panel of the device
(refer to ). Make sure to insert the plug as deep as it will go. Then, lock it by turning the
cap nut clockwise. The foot switch should be positioned right next to the device.
To be able to activate the foot switch later, the cover must be pressed first so that it opens. Thus,
the real switch (black) can be accessed and can be activated by the foot to release the laser emission
in the READY mode.
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