Pilz PSEN op4F/H-A Series Operating Manual page 32

OPERATING MANUAL
In alignment mode, the light curtain is always in a safe state and the OSSD outputs are OFF.
The quality and level of the alignment is determined via the signal strength of each individual
beam in alignment mode. The two synchronization beams have a higher value level. The
user can see the alignment quality from the LED state at the lower end of the receiver.
A. Hold the receiver in a stable position and align the transmitter until the yellow SYNC1
LED goes out. This state confirms that the first synchronisation beam has been
aligned.
B. Rotate the transmitter around the axis of the lower lens until the yellow SYNC2 LED
goes out.
C. For precision adjustment, make minor movements of the transmitter and receiver to
achieve the optimum quality
D. Attach both units firmly using the mounting brackets. Check that the LEVEL of the
receiver does not decrease in quality and that the light axes are not interrupted. Then
check that all LEDs on the LEVEL display go out, even if only one beam is
interrupted. This test is conducted using a test object TP-14 or TP-30 corresponding
to the resolution (see Chapter 2.2.5).
E. Switch off the light curtain pair and then switch it back on in normal operating mode.
The alignment level is also monitored by the display during normal operation (see
Chapter 8.1). Once the light curtain has been aligned and fastened appropriately, the
LED display proves perfect for checking the alignment and displaying any change in
the ambient conditions (e.g. dust).
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
Display
No sync, check
SYNC1
SYNC1 aligned
SYNC2 aligned
One or more
intermediate
beams
not aligned
All light axes are
aligned
All light axes are
aligned
All light axes are
aligned
All light axes are
aligned
Fig. 29 –Status of the LED displays in alignment mode
Configuration LED RX
PSEN op4F/H-A series
Alignment Status of OSSD
status in normal
Alignment operating mode
NONE OFF
NONE OFF
NONE OFF
NONE OFF
POOR
ON
ON
ON
EXCELLENT ON
1003067-EN-04