Gs-120 Multi-Beam System - Tapeswitch GS-120 Technical Manual

Release 7/2009 Ver. 1.0

5.1.4.2 GS-120 Multi-Beam System

The operation of the light curtain should be checked as
required in the previous sections using the method
described below and as shown in Figure 44.
(a) With power applied to the GS-120 system and with
the machine at rest, check that the light curtain is
functioning by observing the state of the appropriate
indicators. The green indicator should be on, and the
red indicator should be off.
(b) To test the curtain is operating correctly, insert your
hand in between the emitter and receiver units and
obstruct one of the beams. While the beam is
obstructed, the green indicator should GO OFF AND
REMAIN OFF and the red indicator should BE LIT AND
REMAIN LIT. Move your hand in and out of the beam
several times and check that the indicators change state
each time as appropriate.
(c) Repeat the above test for each of the beams. The
indicators should behave as described above whenever
the beams are obstructed.
WARNING
At no time while a beam is obstructed should the
green indicator come on. If it does, the machine
must be isolated and must not be used until the
cause has been investigated.
(d) If the system passes the above tests proceed as
follows. Initiate a cycle of the machine and then insert
your hand into the curtain. Upon insertion of your hand
during dangerous motion, the dangerous parts should
come to rest without apparent delay.
WARNING
If the machine does not stop or there is any delay in
its response the machine must be isolated and must
not be used until the fault has been rectified.
TAPESWITCH CORPORATION
100 Schmitt Boulevard
Farmingdale, New York 11735
Technical Manual: GS-120 Light Curtain Systems
40
Figure 44
Phone: 631-630-0442
Fax: 631-630-0454
www.tapeswitch.com