Rockwell Automation Publication 450L-UM001D-EN-P - December 2019 67
Chapter 6
Installation and Wiring
ATTENTION: The GuardShield safety light curtain must not be used with
machines that cannot be stopped electrically in an emergency.
The required safety distance (see Determine the Safety Distance on page 68
)
between the GuardShield safety light curtain and dangerous machine
movement always has to be maintained.
Additional mechanical protective devices have to be installed if hazardous
machine elements can be reached without passing through the protective field.
Improper installation can result in serious injury.
Never connect the safety outputs (OSSDs) to +24V DC. If the safety outputs are
connected to +24V DC, they are in the ON-state and cannot stop hazardous
machine/application movements.
Never expose the GuardShield safety light curtain to flammable or explosive
gases. Do not install GuardShield safety light curtains in outdoor or underwater
applications without additional measures.
Regular safety inspections are imperative (see maintenance).
Do not open or attempt to repair or modify the GuardShield safety light curtain.
Removal of either of the gray GuardShield safety light curtain end caps or the
transparent front window voids the warranty terms of this product.
LASER LIGHT CLASS 2 HAZARD: Do not stare into beam.
The 450L-E GuardShield safety light curtains are equipped with an integrated
laser alignment aid (see Laser Alignment on page 20
).
IMPORTANT Do not insert or remove plug-ins when power is applied to the plug-in.
The GuardShield safety light curtain must be used only as defined in the
Range of Use on page 21
.
If the device is used for any other purposes or modified in any way, warranty
claims against Rockwell Automation become null and void.
Installation must be in accordance with this manual and implemented by
qualified personnel exclusively.
A GuardShield safety light curtain system is intended to be part of the
safety-related control system of a machine. Before installation, a thorough
risk assessment has to be performed to determine whether the
specifications of this device are suitable for all foreseeable operational and
environmental characteristics of the application.