Original instructions – Rockwell Automation 440L GuardShield PAC Type 4 Safety Light Curtain User Manual
Page 10
 
GuardShield™ PAC Safety Light Curtain Installation Instructions
8
Original instructions
distance between the light beams and the nearest point of 
danger.
Persons situated inside the danger zone, but outside the 
protection field are not recognized. It must therefore be ensured 
that a dangerous condition is only possible when there is nobody 
present in the danger zone.
The relevant legal and government regulations are to be 
complied with the implementation of protection installations. 
These regulations vary, depending on areas of application.
Corner Mirrors and Mounting Columns
The GuardShield two- and three-beam PACs can be used with one 
or two corner mirrors to provide two- or three-sided protection. 
The use of each corner mirror reduces the maximum range of the 
GuardShield PAC by at least 10% per mirror.
It is possible to use full length corner mirrors (440L-AM075 series, 
440L-AM125 series).
Rockwell also offers pedestal floor mounting stands (440L-
AMSTD) which will accommodate the mounting of the 
GuardShield two- or three-beam PAC with the appropriate full 
length corner or mirror column mirrors.
Figure 4: Multi-sided access control to danger zones with PAC multi-
beam safety light barrier
Transmitter
Receiver
Mounting Stand with Corner Mirror
Transmitter
Receiver
Mounting Stand with Corner Mirror
Transmitter
Receiver
Mounting Stand with Corner Mirror
Configuration is not allowed.