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Operating instructions
Safety sensor
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.
2 , 5
2
1
5
Assured switching distance:
Assured switch-off distance:
3.4 Adjustment
If the central marking of the actuator is within the represented base
position area, the authorisation signal is given.
Recommended Adjustment
Align the safety sensor and actuator at a distance
of 0.5 x s
.
ao
4. Electrical connection
4.1 General information for electrical connection
The electrical connection may only be carried out by
authorised personnel in a de-energised condition.
The safety sensors must be wired in accordance with the wire colours
or the pin configuration.
4.2 Contact variants
The contact position shows the actuated sensor function when the
safety guard is closed. The LED is illuminated when the guard is
closed. Inductive loads (e.g. contactors, relays, etc.) are to be provided
with suitable interference suppression circuitry.
BNS 300-01ZG
BNS 300-01ZG-2211
BNS 300-01ZG-2271
BNS 300-01ZG-2246 (42 VAC)
BN
24 VDC
L+
BK
BK
BU
30 mA
L-
BNS 300-01ZG-ST
24 VDC
3
1
2
30 mA
4
4
0
3
1
3
2
3
4
s
= 5 mm,
ao
8 mm (ordering suffix -2211, -2334)
s
= 15 mm,
ar
18 mm (ordering suffix -2211,
-2334)
BNS 300-01ZG-2230
BNS 300-01ZG-2334
1
24 VDC
2
100 mA
3
30 mA
4
5
4.3 Connector plug
Integrated connector M12, 4-pole
4
3
2
1
5. Set-up and maintenance
5.1 Functional testing
The safety function of the safety components must be tested. The
following conditions must be previously checked and met:
1. Fitting of the sensor and the actuator
2. Fitting and integrity of the power cable
3. The system is free of dirt and soiling
(in particular metal chips)
5.2 Maintenance
In the case of correct installation and adequate use, the safety sensor
features maintenance-free functionality.
A regular visual inspection and functional test, including the following
steps, is recommended:
• Check the fitting of the sensor and the actuator
• Remove possible metal chips
• Check the cable for damage.
Adequate measures must be taken to ensure protection
against tampering either to prevent tampering of the safety
guard, for instance by means of replacement actuators.
Damaged or defective components must be replaced.
6. Disassembly and disposal
6.1 Disassembly
The safety switchgear must be disassembled in a de-energised
condition only.
6.2 Disposal
The safety switchgear must be disposed of in an appropriate manner
in accordance with the national prescriptions and legislations.
L+
A
L-
EN
BNS 300
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