KEYENCE SL-CHS 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-CHS 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-CHS
detection zone.
• The machine operator’s body can enter between the SL-CHS 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-CHS 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-CHS.
Also, install the SL-CHS so that the machine operators cannot access the
hazardous zone or hazards without passing through the detection zone or
protection zone of the SL-CHS Series. In other words, do not install the SL-CHS in
a layout that allows machine operators to enter between the SL-CHS and the
machine's hazardous zone or hazards without being detected by SL-CHS or
access the machine's hazardous zone or hazards by bypassing the detection zone
of the SL-CHS Series. If these warnings are violated, it may result in serious harm,
such as an injury or death of the machine operator.