Rockwell Tools GUARDSHIELD SAFE 4 - Manual (Page 6)

GuardShield Safe 4 Operation Manual
3.2. Applications restrictions
GuardShield Safe 4 is not designed and approved for
any application in explosive EX or radioactive areas.
3.3. Application conditions
The safe application of the light curtain system
GuardShield Safe 4 needs certain precautions:
1. The control unit of the machine or system must
be able to be electrically stopped and the stop
time must be known.
2. The hazardous moving parts of the machine
must always be stoppable and must achieve a
safe position or complete standstill within the
specified stop time of the machine.
3. When installing GuardShield Safe 4, the only
way to access the hazard must be through the
sensing field of the GuardShield Safe 4.
Figure 3: Correct installation
Figure 4: Incorrect installation
For the professional installation and connection,
please consult the relevant laws and regulations.
The safety officer of the manufacturing facilities,
the local authorities (OSHA in USA, HSE in GB)
or the respective industry associations as well as
the intensively trained employees of ROCKWELL
AUTOMATION are available for any safety related
queries.
3.3.1. Corner mirrors
The protective field between transmitter and receiver
can be guided around a corner using a mirror to allow
safeguarding of two or three hazardous areas. Note
that using one mirror will help reduce max. operating
range by approx. 15 %.
It is not recommended to use more than two mirrors
due to alignment difficulties that may occur.
Figure 2: Typical Applications
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