SICK deTec4 Ex II 3GD - Check During Commissioning and Modifications

If front screen contamination increases in ongoing operation, the laser alignment aid
s
witches on or the alignment takes longer than 3 seconds, the receiver shows the
alignment quality again.
Once the safety light curtain is aligned and the protective field is clear (field indicator:
flashing yellow or lit up green), the alignment quality display switches off after a certain
period of time.
Table 34: Indication of the alignment quality
LEDs Meaning
Diagnostics LEDs
1 2 3 4 5 6 7 8
o o o o o o o o
Alignment is inadequate, or the protective field is
a
t least partially interrupted. The receiver cannot
synchronize with the sender.
O Blue o o o
At least one beam is synchronized.
However, the alignment is inadequate, or the pro‐
tective field is at least partially interrupted.
O Blue O Blue o o
The alignment or the signal strength is still not
suf
ficient for stable availability, or the protective
field is at least partially interrupted.
1)
O Blue O Blue O Blue o
Alignment is good, stable availability.
1) 2)
O Blue O Blue O Blue O Blue
Alignment is very good.
1)
O Blue O Blue
The topmost light beam (far from system plug) is
s
ynchronized.
O Blue O Blue
The bottommost light beam (near system plug) is
s
ynchronized.
o LED of
f. Ö LED flashes. O LED illuminates.
1)
If external device monitoring is configured and there is an EDM warning, diagnostic LED 1 flashes, while the other diagnostic LEDs 2, 3 and
4 indicate the alignment quality. If there is an error on the reset pushbutton, diagnostic LED 4 flashes, while the other diagnostic LEDs 1, 2
and 3 indicate the alignment quality.
2)
If the protective fields are very wide, there is a possibility that diagnostic LED 4 does not light up, even with optimal alignment.
Further topics
•
"Indic
ations when switching on", page 115
8.5 Check during commissioning and modifications
The test is intended to ensure that the hazardous area is monitored by the protective
de
vice and any attempted access to the hazardous area is prevented.
b
Carry out the checks according to the instructions from the manufacturer of the
machine and from the operating entity.
COMMISSIONING 8
8023872/18YZ/2021-01-14 | SICK O P E R A T I N G I N S T R U C T I O N S | deTec4 Ex II 3GD
107
Subject to change without notice