KEYENCE SL-C Series - Manual (Page 26)

Chapter 2 Installation and Assembly
2-4
2
English ENGLISH
Mounting position of transmitter and receiver:
Correct position
• The hazardous zone or hazards within the machine are accessible only through the SL-C detection
zone.
• While the machine is running, the machine operator's body always stays on the opposite side of the
hazardous zone or hazard.
Incorrect installation
• The machine operator can access the hazardous zone or hazards without passing through the SL-C
detection zone.
• The machine operator’s body can enter between the SL-C detection zone and hazardous zone or
hazard while the machine is running.
Safe
Safe
Protection
device
Dangerous
Dangerous
Dangerous
WARNING
If the machine operators are not protected from hazards by the SL-C in the entire
hazardous zone, always add a safety protective equipment such as a safety guard
to the portion of the hazardous zone that is not covered by the SL-C. Also, install
the SL-C so that the machine operators cannot access the hazardous zone or
hazards without passing through the SL-C’s detection zone or protection zone. In
other words, do not install the SL-C in a layout that allows machine operators to
enter between the SL-C and the machine's hazardous zone or hazards without
being detected by SL-C or access the machine's hazardous zone or hazards by
bypassing the SL-C's detection zone. If these warnings are violated, it may result
in serious harm, such as an injury or death of the machine operator.