BLG 4A
Safety Light Curtain
Alignment
4
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9
english
The following descriptions refer to the standard installation position according to the information
in Figure 5 on page 8 and installation with downward facing connectors.
Once the mechanical assembly and electrical connections are complete according to the
previous sections, the light curtain can be aligned. The status can be checked using the
following tables.
Receiver BLG 4A-…-014/030-…
Signal level of the
alignment
Status indicator
Meaning/Actions
Minimum
25…50 %
Proportion of the
optimally aligned
beams
Medium
50…75 %
Maximum
75…100 %
Not sufficient
Interruption of the protec-
tion field or light curtain not
aligned (OSSD outputs
switched off)
►
Align light grid.
The goal for fault-free operation should be maximum alignment (75…100%).
Receiver BLG 4A-…-B0.-…
Signal level of the
alignment
Status indicator
Meaning/Actions
Maximum
Good reception
(OSSD outputs active)
Aligned on one side
Protection field interrupted or light curtain not
fully aligned
(OSSD outputs turned off)
►
Align light grid until the lower yellow LED
is also on.
Not sufficient
Protection field interrupted or light curtain not
fully aligned
(OSSD outputs turned off)
►
Align light grid until the upper yellow LED
is on.
Correctly aligning
the light curtain
