3
BNS 16 ST
Operating instructions
Safety sensor
EN
3. Mounting
3.1 General mounting instructions
During fitting, the requirements of ISO 14119 must
be observed.
• Install the actuator so that the marks of the safety sensor and the ac
-
tuator(s) are completely opposite when the safety guard is closed.The
marking of the BNS 16 simultaneously identifies the active face.
• Fitting is only authorised in a de-energised condition
• Do not use the sensor and the actuator as a mechanical backstop
• Any mounting position, provided that the active surfaces are opposite
• Ensure the safety sensor is mounted on a flat surfaces to avoid tensile
stresses that could damage the sensor or lead to varying switching
distances
• If possible, do not install the safety sensor and the actuator on ferro
-
magnetic material.
• Do not install the safety sensor and the actuator in strong magnetic
fields
• Do not subject the components to extreme vibrations
• Keep away from metal chips
• The mounting distance between two sensors should always be at
least 50 mm
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.
M20 x 1,5
M20
x
1,5
55
52
39,5
9
93
7
37
26
18
15
12
18
39,5
26
26
8,5
¤ 5,5
40
60
20
11
90
17
M 12
40
M 12
ST1
ST2
ST3
ST1
Connector in the middle
ST2
Connector at the right-hand side
ST3
Connector at the left-hand side
Actuating planes BNS 16
Actuating planes BNS 16 LR
BNS 16-12ZD
BNS 16-12ZLR
BNS 16-12ZU
BNS 16-12ZV
BNS 16-12ZR
BNS 16-12ZL
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.
8
3
0
4
10
10
8
14
14
Assured switching distance:
s
ao
= 8 mm
Assured switch-off distance:
s
ar
= 18 mm
3.4 Adjustment
Recommended Adjustment
Align the safety sensor and actuator at a distance of 0.5 x s
ao
.
The correct functionality must always be checked by means of the
connected safety-monitoring module.
