Automatic And Monitored Start - Pilz PSEN op4H-SL Series Operating Manual

PSEN op4H-SL Series
The output signal switching devices (OSSDs) switch to the OFF state when one of the fol-
lowing conditions is met:
one or more light beams are interrupted by an object, a body part, or an opaque object
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that is at least as large as the resolution (24 mm) covered by the safety light grid,
an error is detected by one of the OSSDs,
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or interfering light is detected.
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If an error occurs, the OSSDs remain in the OFF state. The state can be returned to the ON
state only after a successful
The safety light grid in the PSEN op4H-SL Series offers the following functions:
Automatic start
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Monitored start
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EDM (when connected to a relay with positive-guided contacts)
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Cascading
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Transmitters and receivers are each electrically connected with a cable with an M12 con-
nector that is assigned to the transmitter and receiver on the LED side.
The transmitter and receiver are optically synchronised and therefore need not be directly
connected to each other.
Information about the operating status of the safety light grid and any error state is provided
by means of LEDs.
The indicators are described in the

Automatic and monitored start

Automatic start
During safety light grid commissioning, the safety light grid starts automatically, and the
OSSDs switch to the ON state under the following conditions:
both OSSDs are wired correctly and
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no error has occurred and
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the protected field is clear.
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If the protected field is violated, the OSSDs switch to the OFF state.
Monitored start
The OSSDs automatically switch to the ON state during operation under the following con-
ditions:
both OSSDs are wired correctly and
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no error has occurred and
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the protected field is clear and
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at least 80 ms have elapsed since switching to the OFF state and
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the start button has been operated for at least 0.5 s. The start occurs with a falling
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edge.
Operating Manual PSEN op4H-SL Series
1004305-EN-01
restart [ 40] of the safety light grid.
Status Information [ 38] section.
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