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8 007 487/10-10-99 Technical Description • LGT © SICK AG • Safety Systems • Germany • All rights reserved
5.2 Mechanical mounting
The sender and receiver units must
not be installed rotated at 180°
angles to each other (Fig. 11).
The sender and receiver strips of
the light grid are secured in the light
screen by means of the threaded
M5 bolts or an M4 screw inserted
through the bolt hole or or the M5
bolt can be used directly (Fig. 12).
In order to ensure maximum flex-
ibility at the mounting location and
to enable light grids to be replaced
quickly, snap-on clips have been de-
veloped (Fig. 12). These can be di-
rectly screwed onto the mounting
surface. The light grids are then sim-
ply latched into place to prevent
the light grid from slipping as a re-
sult of vibration, the grid can
aditionally be secured to the clips
by means of a screw.
The control unit is screwed down
using the fixing holes provided in
the enclosure. When using the con-
trol unit without an enclosure, i.e.
mounting in a control cubicle, the
the control unit chassis is clipped di-
rectly onto a DIN rail.
To improve EMC, insulated moun-
ting on the power-driven machinery
is recommended. This can be provi-
ded by insulating (collared) washers,
for example.
Fig. 11. The sender and receiver units must
not be installed rotated at 180° angles to
each other.
5.3 Electrical installation
The preassembled connecting
leads must be used to connect
the control unit to the sender
and receiver strips. Insert the
connectors into the terminals
provided on the control unit.
(Fig. 13)
5.3.1 Connection between
the control unit and
customer interface
Depending on the type of control
unit, a supply voltage of 24 VDC
or 115/230 VAC must be pro-
vided and the unit connected in
accordance with the connection
diagram (Appendix 10).
Fig. 12. Fixing options for LGT
Fig. 13. Terminals for connecting sensor strips to the control unit
M4
M5
LGT
LGT
Clip
Clip
LGTN
R1 R2
S1
S2
S 1, R 1 Terminals for sender 1
and receiver 1
S 2, R 2 Terminals for sender 2
and receiver 2
S Sender
R Receiver
SE
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