Mounting
Leuze electronic
MC3x
24
Table 6.1:
Switching distances of sensor and actuator
Proceed as follows:
Align the actuator so that the distance between sensor and actuator is within the specifications (Sao and
OFF) while the guard is closed.
The fitting position of sensor and actuator can be freely selected.
If necessary, provide a constraining guide for the moveable part of the guard. The edges of the move
-
able and fixed part of the guard must be aligned (e.g., door and frame).
Do not use the sensor as a limit stop, but rather provide a separate mechanical limit stop.
Install a locking or snap mechanism for the moveable part of the guard to prevent it from swinging open.
If it is expected that the moveable part of the guard will warp, the mounting position of sensor and actu
-
ator can be adjusted to offset this somewhat if necessary. Check the resulting gap dimensions to deter
-
mine, e.g., whether it allows a person to reach behind.
Fasten sensor and actuator with rivets or tamperproof screws on a form-fitting surface so that they can
-
not be detached.
If necessary, mount sensor and actuator so they are covered.
Note the minimum approach speed (see chapter 13 „Technical data“).
6.2.1 Checklist - correct mounting of sensor and actuator
Area of application: Mounting
Tester: Technician who mounts the MC3x
Sensor type
Housing
Switching distance Sao / OFF / Sar
MC388-S1-A
Cuboid
88 mm x 25 mm
< 6 mm, > 13 mm, > 30 mm
MC336-S1-A
Cuboid
36 mm x 26 mm
< 3 mm, > 8 mm, > 11 mm
MC330-S1-A
Cylinder
30 mm, round
< 6 mm, > 12 mm, > 14 mm
MC388-S2-A
Cuboid
88 mm x 25 mm
< 9 mm, > 19 mm, > 22 mm
MC336-S2-A
Cuboid
36 mm x 26 mm
< 7 mm, > 17 mm, > 20 mm
MC330-S2-A
Cylinder
30 mm, round
< 6 mm, > 15 mm, > 18 mm
Sao = assured cut-in distance
OFF = cut-out point
Sar = assured cut-out distance
Checklist for mounting
Yes
No
Are sensor, actuator and Safety Relay properly selected, i.e., not
mixed, and used acc. to the assignment (see chapter 15 „Ordering
information and accessories“)?
Are sensor and actuator mounted in a form-fitting manner?
While the guard is closed, is the distance from sensor and actuator
within the specified values Sao and OFF?
Do the markings on sensor and actuator align while the guard is
closed?
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