FlexiForce forceLC2 Handbuch Seite 4

Purpose
The safety light curtain (LIGI) consists of a transmitter and receiver and is suitable for all
automatic door types with a minimum door width of 1.6m. The LIGI complies with the
following regulations: EN 12978, EN 12445 and EN 12453. The closing speed of the door
is to be selected in such a way that the force limit values as per EN 12453 are adhered to.
Only objects that are 5mm larger than the beam separation distance can be detected.
Mounting, installation and commissioning
Mounting, installation and commissioning of safety light curtains may only be carried out
by trained personnel in accordance with the specifications of the door manufacturer. The
specifications in this operating manual are also to be adhered to. Operation under conditions
other than those intended and modifications to the optics and casing are not permitted and
result in loss of EC conformity.
When installing PNP/NPN versions, it must be ensured that the door control system checks
the safety light curtain versions with a test input once per door cycle. To do so, the control
system must trigger the test input on the transmitter for at least 100ms and monitor the
reaction behaviour of the output of the receiver. If the time behaviour corresponds to the
technical data, the test is successful. Testing by briefly switching off the supply voltage is
not suitable.
The safety light curtains are designed in such a way that sunlight and light from halogen
lamps and fluorescent tubes (see IEC 61496-2) do not lead to undesired activation.
In rare cases, other photo switches or sources of infrared light can lead to undesired activa-
tion. These sources of light interference must be dealt with in such cases by switching off,
blocking or removing them.
If two light curtains (in front of and behind the door) are to be used to provide protection,
the separation distance between the light curtain and door should be small enough that
persons cannot be present undetected between the door and the detection zones that are
created. For this application, the two transmitter of the light curtains should be mounted on
opposite sides of the door.
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manual – forceLC2
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