![background image](http://html1.mh-extra.com/html/sick/2113101/2113101_operating-instructions-manual_1264685031.webp)
7.4
Alignment of the sender and receiver
Overview
Once mounting and electrical installation are complete, the sender and receiver must
be aligned with each other.
Important information
DANGER
Dangerous state of the machine
b
Make sure that the dangerous state of the machine is (and remains) switched off
during the alignment process.
b
Make sure that the outputs of the single-beam photoelectric safety switch do not
affect the machine during the alignment process.
7.4.1
Aligning the sender and receiver
Important information
NOTE
When aligning the sender and receiver, note the location of the optical axis,
"Dimensional drawings", page 41
.
NOTE
Once the yellow status LED lights up, alignment is good and availability is stable.
Ensure no parts of the body or objects are located between the sender and receiver
(e.g., hand, tool) as these will negatively affect the alignment quality. Remove all objects
from this area to allow the alignment quality to be assessed.
Prerequisites
•
Sender and receiver have been mounted at the correct height.
•
The light path is completely clear. There is no object between the sender and
receiver.
Approach
1.
Align the sender with the receiver.
2.
For red light (visible): Select the position so that the red light beam of the sender
hits the receiver,
Tip: Use white paper, for example, as an alignment aid.
3.
For infrared light (not visible): Select the position so that the infrared light of the
sender hits the receiver.
4.
Observe the status LED and the alignment quality LEDs while performing the align‐
ment,
✓
Once the yellow status LED lights up, alignment is good and availability is stable.
✓
0 … 5 of the blue alignment quality LEDs may also light up depending on the sepa‐
ration distance between the sender and receiver and the quality of the alignment.
COMMISSIONING
7
8024678/2020-01-24 | SICK
O P E R A T I N G I N S T R U C T I O N S | L25
31
Subject to change without notice