2 Safety information
2.1 Intended use
The ZLD18 / ZLE18 is an opto-electronic photoelectric retro-reflective sensor (referred
to as “sensor” in the following) for the optical, non-contact detection of objects, ani‐
mals, and persons. A reflector is required for this product to function. If the product is
used for any other purpose or modified in any way, any warranty claim against SICK AG
shall become void.
2.2 General safety notes
Connection, mounting and configuration of the product must only be car‐
ried out by qualified personnel.
This product does not constitute a safety component as defined in the
Machinery Directive.
Do not install the product in places exposed to direct UV radiation (sun‐
light) or other weather conditions.
The product must be adequately protected against moisture and contami‐
nation.
3 Product description
3.1 Operating and status indicators
Figure 1: Status indicators
1
LED indicator (green): power
2
LED indicator (orange): light received
4 Mounting
Mount the sensor and the reflector using suitable mounting brackets (see the SICK
range of accessories). Align the sensor and reflector with each other.
5 Electrical installation
The sensors must be connected in a voltage-free state (U
V
= 0V). The following informa‐
tion must be observed depending on the connection type:
– Plug connection: pin assignment
– Cable: wire color
Only apply voltage/switch on the voltage supply (U
V
>0V) once all electrical connec‐
tions have been established.
OPERATING INSTRUCTION
8021946.1HW1 /2022-11-14 | SICK O P E R A T I N G I N S T R U C T I O N | ZLD18 / ZLE18
21
Subject to change without notice
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