3
EX-BNS 303-2187
Operating instructions
Safety sensor
EN
3. Mounting
3.1 General mounting instructions
• Fitting is only authorised in a de-energised condition
• Screw both nuts in the provided mounting holes to fix the safety
sensor (max. tightening torque 300 Ncm)
• Do not use the sensor and the actuator as a mechanical backstop
• Any mounting position, provided that the active surfaces and signs
on it are opposite
• Inseparably fix the safety sensor and the actuator to the safety guard
• Do not install the safety sensor and the actuator in strong magnetic
fields
• If possible, do not install the safety sensor and the actuator on
ferromagnetic material.
• Do not subject the safety sensor and actuator to extreme vibrations
and shocks.
• Keep away from metal chips
• The mounting distance between two sensors should always be at
least 50 mm.
Please observe the specifications for the maximum impact
energy in the technical data.
Safety sensor and actuator must be permanently fitted to the
safety guards and protected against displacement by suitable
measures (tamperproof screws, gluing, drilling of the screw
heads).
3.2 Dimensions
All measurements in mm.
Safety sensor with cable
44
M
30
x
1,5
1000
6
36
Actuator
BPS 300
2
30
15
90
°
14
ø
2
ø
4,
5
BPS 303
15
2
14
ø
2
ø
37
ø
30
BPS 303 SS
2
1,5
13,8
15
M4
ø
30
ø
37
Actuator BPS 303 and BPS 303 SS
The actuators are primarily provided for use in the food-processing
industry and therefore are not labelled.
The actuators are fixed by means of the supplied tamper-proof screws.
The mounting hole must have a diameter of 4.5 mm. Next to the
mounting hole, a second mounting hole must be provided. This hole is
used for the fixture of the displacement protection dowel.
Position of the dowel: refer to the image in chapter "Axial misalignment".
3.3 Axial misalignment
A horizontal and vertical misalignment of the safety sensor and the
actuator is tolerated. The possible misalignment depends on the
distance of the active surfaces of the sensor and the actuator.
The sensor remains active within the tolerance range.
The specified switching distances refer to opposedly mounted safety
sensors and actuators.
0,5
0
1
2
3
4
5
1
2
3,5
4
3
5
7
9
10
assured switching distance:
s
ao
= 5 mm
Assured switch-off distance
s
ao
= 15 mm
3.4 Adjustment
The LED can only be used as rough setting tool. The correct
functionality of both safety channels must be checked by means of
the connected safety-monitoring module.
