Interlock Switches
Non contact Switches
Sentinel 1
Typical Wiring Diagrams
Sentinel 1 Sensor
Red
+ Supply
Voltage
-
Blue
Black
Safety
N.C.
Fuse
Externally
White
Yellow
Auxiliary
N.O.
Green
Application Details
Operating Principle
On presenting the actuator to the switch, the high-
intensity electromagnetic field together with a
resonant frequency signal causes the contacts to
close. On removing the actuator, (opening the door)
the safety contacts open, isolating the machine. The
switch can not be overridden by magnets, tools, etc.
Actuator Approaches
✔
✔
✔
3-66