
All rights reserved. Subject to change without notice.
1 About this document
This document applies to all L25 and L26 single-beam photoelectric safety switch.
2 Safety information
DANGER
Hazard due to lack of effectiveness of the protective device
In the case of non-compliance, it is possible that the dangerous state of the machine
may not be stopped or not stopped in a timely manner.
The single-beam photoelectric safety switch is a Type 2 electro-sensitive protective
device (ESPE) in accordance with IEC 61496-1 and IEC 61496-2 only In conjunction
with an external test device.
bObserve the safety information of the protective device and the external test
device.
Among others, the single-beam photoelectric safety switch is not suitable for the follow‐
ing applications:
•Outdoors
•Underwater
•In explosion-hazardous areas
•In environments with increased levels of ionizing radiation
For more information about how to work with the protective device, refer to the machin‐
ery documentation or the operating instructions for the protective device. You can call
up the EU declaration of conformity and the current operating instructions for the pro‐
tective device by entering the part number in the search field at www.sick.com (part
number: see the type label entry in the “Ident. no.” field).
3 Status indicators
Complete overview of the LED statuses and their meanings: see operating instructions.
Sender displays
Position of LEDs: A
Position LED color Display
1Green Operation LED
Receiver displays
Position of LEDs: B
Position LED color Display
1Blue Alignment quality (BluePilot)
2Yellow Status LED
3Green Operation LED
MOUNTING INSTRUCTIONS
8016597/2019-11-11 | SICK M O U N T I N G I N S T R U C T I O N S | L25, L26 7
Subject to change without notice