schmersal BNS 33 series User manual

BNS 33
Operating instructions
Safety sensor
EN 1
1. About this document
1.1 Function
This operating instructions manual provides all the information you
need for the mounting, set-up and commissioning to ensure the safe
operation and disassembly of the safety switchgear. The operating inst-
ructions must be available in a legible condition and a complete version
in the vicinity of the device.
1.2 Target group: authorised qualified personnel
All operations described in this operating instructions manual must
be carried out by trained specialist personnel, authorised by the plant
operator only.
Please make sure that you have read and understood these operating
instructions and that you know all applicable legislations regarding
occupational safety and accident prevention prior to installation and
putting the component into operation.
The machine builder must carefully select the harmonised standards to
be complied with as well as other technical specifications for the selec-
tion, mounting and integration of the components.
1.3 Explanation of the symbols used
Information, hint, note:
This symbol is used for identifying useful additional information.
Caution: Failure to comply with this warning notice could
lead to failures or malfunctions.
Warning: Failure to comply with this warning notice could
lead to physical injury and/or damage to the machine.
1.4 Appropriate use
The products described in these operating instructions are developed to
execute safety-related functions as part of an entire plant or machine. It
is the responsibility of the manufacturer of a machine or plant to ensure
the correct functionality of the entire machine or plant.
The safety switchgear must be exclusively used in accordance with the
versions listed below or for the applications authorised by the manufac-
turer. Detailed information regarding the range of applications can be
found in the chapter "Product description".
1.5 General safety instructions
The user must observe the safety instructions in this operating instruc-
tions manual, the country-specific installation standards as well as all
prevailing safety regulations and accident prevention rules.
Further technical information can be found in the Schmersal
catalogues or in the online catalogue on the Internet:
www.schmersal.net.
The information contained in this operating instructions manual is provi-
ded without liability and is subject to technical modifications.
There are no residual risks, provided that the safety instructions as well
as the instructions regarding mounting, commissioning, operation and
maintenance are observed.
Content
1 About this document
1.1 Function ..............................................1
1.2 ..................1
1.3 Explanation of the symbols used ...........................1
1.4 Appropriate use ........................................1
1.5 General safety instructions ...............................1
1.6 Warning about misuse ...................................2
1.7 Exclusion of liability .....................................2
2 Product description
2.1 Ordering code .........................................2
2.2 Special versions........................................2
2.3 Destination and use .....................................2
2.4 Technical data .........................................2
2.5  .....................................2
3 Mounting
3.1 General mounting instructions .............................3
3.2 Dimensions ...........................................3
3.3 Axial misalignment ......................................3
3.4 Adjustment............................................4
4 Electrical connection
4.1 General information for electrical connection..................4
4.2 Contact variants........................................4
4.3 Connector plug.........................................5
5 Set-up and maintenance
5.1 Functional testing.......................................5
5.2 Maintenance ..........................................5
6 Disassembly and disposal
6.1 Disassembly...........................................5
6.2 Disposal ..............................................5
7 EU Declaration of conformity
x.000 / 03.2016 / v.A. - 101114748-EN / Q / 2016-03-02 / AE-Nr. 5795
EN Operating instructions. . . . . . . . . . . . .pages 1 to 6
Original

2
Operating instructions
Safety sensor BNS 33
EN
1.6 Warning about misuse
In case of improper use or manipulation of the safety switch-
gear, personal hazards or damages to machinery or plant
components cannot be excluded when safety switchgear is
used. The relevant requirements of the standard ISO 14119
must be observed.
1.7 Exclusion of liability
We shall accept no liability for damages and malfunctions resulting from
defective mounting or failure to comply with this operating instructions
manual. The manufacturer shall accept no liability for damages resul-
ting from the use of unauthorised spare parts or accessories.
For safety reasons, invasive work on the device as well as arbitrary re-
pairs, conversions and modifications to the device are strictly forbidden;
the manufacturer shall accept no liability for damages resulting from
such invasive work, arbitrary repairs, conversions and/or modifications
to the device.
2. Product description
2.1 Ordering code
This operating instructions manual applies to the following types:
BNS 33-
➀
Z
➁
-
➂
No. Option Description
➀
11 1 NO / 1 NC
12 1 NO / 2 NC
➁
without LED
G with LED
➂
connecting cable
ST integrated connector
2.2 Special versions
For special versions, which are not listed in the order code below 2.1,
these specifications apply accordingly, provided that they correspond to
the standard version.
2.3 Destination and use
The BNS 33 safety sensor is designed for application in safety circuits
and is used for monitoring the position of movable safety guards to
ISO 14119 and IEC 60947-5-3. To actuate the safety sensors, only the
BPS 33 actuators can be used, conventional magnets are not suitable.
The safety switchgears are classified according to
ISO 14119 as type 4 switching devices.
The safety switches are used for applications, in which the hazardous
situation is terminated without delay when the safety guard is opened.
Only the entire system consisting of the safety sensor (BNS 33), the ac-
tuator (BPS 33) and the safety-monitoring module (AES, SRB) meets the
requirements of the standard IEC 60947-5-3.
The user must evaluate and design the safety chain in
accordance with the relevant standards and the required
safety level.
The entire concept of the control system, in which the safety
component is integrated, must be validated to the relevant
standards.
2.4 Technical data
Standards: IEC 60947-5-3; BG-GS-ET-14
Enclosure: glass-fibre reinforced thermoplastic
Protection class: IP67 to IEC 60529
Termination: Boflex cable or M8 connector
Connecting cable: 4 x 0.25 mm²
Version with integrated connector: M8 x 1, 4-pole
Tightening torque for connectors: max. 0.3 Nm
Operating principle: magnetic
Actuator: BPS 33; BPS 33-2326; coded
Coding level according to ISO 14119: low
Switching distances:
- Assured switching distance sao:5 mm (BPS 33);
8 mm (BPS 33-2326)
- Assured switch-off distance sar:15 mm (BPS 33);
18 mm (BPS 33-2326)
Switching condition indication: LED only with ordering suffix G
Rated insulation voltage Ui: 32 V
Rated impulse withstand voltage Uimp: 0.8 kV
Switching voltage: without LED: max. 100 VAC/DC
with LED: max. 24 VDC
with connector: max. 60 VAC/DC
Switching current: without LED: max. 400 mA
with LED: max. 10 mA
Switching capacity: without LED: max. 10 W
with LED: max. 240 mW
Required short-circuit current: 100 A
Ambient temperature: 
Storage and transport temperature: 
Max. switching frequency: 5 Hz
Resistance to shock: 30 g / 11 ms
Resistance to vibration: 10 ... 55 Hz, amplitude 1 mm
Same Polarity.
2.5 Safety classification
Standards: ISO 13849-1
Safety contacts:
- NC / NC combination: S21-S22 and S11-S12
or C-S22 and C-S12
- NC / NO combination: S21-S22 and S13-S14
or C-S22 and C-S14
Intended structure:
- 2-channel usage: usable to cat. 4 / PL e
with suitable logic unit
B10d NC contacts at 20 % contact load: 25.000.000
B10d NO contacts at 20 % contact load: 25.000.000
Service life: 20 years
MT
TF
Bdxx
hs/h3600
d
10d op op
op
n
0,1 x nop tcycle
(Determined values can vary depending on the application-specific
parameters hop, dop and tcycle as well as the load.)
If multiple safety components are wired in series, the Performance
Level to ISO 13849-1 will be reduced due to the restricted error detec-
tion under certain circumstances.

3
BNS 33
Operating instructions
Safety sensor
EN
3. Mounting
3.1 General mounting instructions
During fitting, the requirements of ISO 14119 must be
observed.



stresses that could damage the sensor or lead to varying switching
distances

fields

material. Otherwise, the following variations of the switching distances
may be expected: A distance of 0…5 mm from the mounting surface
to the ferromagnetic material: switching distance is only approx. 40 %
of the original switching distance; A distance of 5…8 mm: approx.
80 % of the original switching distance; > 10 mm: no change (use
spacer BN 31/33)

and shocks.


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.
Safety sensor with cable
88
78
25
7
3,5
18,5
7,5
6,5
1000
4,5
LED
ø5
13
3
Safety sensor with connector
3,5
0,5
7
25
13
3
78
4,5
88 M8
ø5
18,5
Actuator
88
78
25
7
3,5
18,5
13
3
4,5
ø 5
Spacer
8,
5
7
3,5
10
25
88
78
18,5
13
ø5
3.3 Axial misalignment
A horizontal and vertical misalignment of the safety sensor and the
actuator is tolerated. The possible misalignment depends on the dis-
tance 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. Different arrangements are possible, however
this may lead to different switching distances.
0
1
2
3
4
5
3
4
5
5,5
6
6
5,5
5
4
2
Assured switching distance: sao = 5 mm
8mm (Ordering suffix -2326)
Assured switch-off distance: sar = 15 mm
18mm (Ordering suffix -2326)
15
1515 0
66
33
54
B
A
Key
A Base position area (sensor actuated, release)
B Switch-off area (at the latest at this point, all Reed contacts are not
actuated)

4
Operating instructions
Safety sensor BNS 33
EN
3.4 Adjustment
If the central marking of the actuator is within the represented base po-
sition area, a release signal is given at the connected safety-monitoring
module.
Recommended Adjustment
Align the safety sensor and actuator at a distance
of 0.5 x sao .
Since under certain operational circumstances or due to tolerances,
the case may happen that both outputs in the safety sensor do not
operate exactly simultaneously, the LED cannot be the only criterion for
a correct adjustment. The correct functionality must always be checked
by means of the connected safety-monitoring module.
4. Electrical connection
4.1 General information for electrical connection
The electrical connection may only be carried out by autho-
rised 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. If the safety sensor is equipped with a LED, the
LED will be illuminated when the guard is open.
Safety contacts: S21-S22 and S11-S12 or S13-S14
oder C-S22 and C-S12 or C-S14
Signalling contact: S31-S32 or C-S32
The numbers between brackets indicate the PIN configuration of the
versions with integrated connector; indication of the wire colours for the
version with cable.
BNS 33-11Z
BNS 33-11Z-2063
BK 13
WH 21
14 BU
22 BN
BNS 33-11ZG
BK 13
WH 21
14 BU
22 BN
BNS 33-12Z
BNS 33-12Z-2063
BK 22
WH 32
14 BU
C BN
BNS 33-12ZG
BK 22
WH 32
14 BU
C BN
BNS 33-11ZST
12
34
21
13
22
14
BNS 33-11ZST
12
34
21
13
22
14
BNS 33-12ZST
12
34
32
22
c
14
BNS 33-12ZST
12
34
32
22
c
14
Information for the selection of suitable safety-monitoring
modules can be found in the Schmersal catalogues or in the
online catalogue on the Internet: www.schmersal.net.
Connecting multiple BNS 33-11Z safety sensors to one AES safety-
monitoring module is technically possible. To connect multiple safety
sensors (check if authorised!), their NO contacts are wired in parallel
and their NC contacts in series. The Protect-IE-11 or -02 or
PROTECT-PE-11(-AN) or -02 input expander module can be used to
connect up to 4 safety sensors with NC/NC or NC/NO contacts.
Safety sensors equipped with LED's shall not be wired in series, except
for the Protect-IE or PROTECT-PE input expander module. As a result
of this, the luminosity of the LED's would considerably decrease and the
voltage could drop below the minimum input voltage of the downstream
safety-monitoring module.

5
BNS 33
Operating instructions
Safety sensor
EN
4.3 Connector plug
Integrated connector M8, 4-pole
3
1
42
Accessories: connecting cable with coupling
M8, 4-pole,
PUR, screw terminal
2 m 5 m 10 m
31
42
1 BN straight 101209947 101209981 -
2 WH
3 BU
angled 101204903 101204904 -
4
8 mm, 4-pole,
PVC, cage clamps
2 m 5 m 10 m
31
42
1 BN straight 101209940 101209941 101209927
2 WH
3 BU
angled 101209987 101209995 101209939
4
Accessory: Y-adapter BNS-Y-11
S21
S22
S13
S14
1
3
2
4
1
3
2
4
BNS-Y-11
AES
SRB
BNS 33-11Z
1234
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:




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 condi-
tion only.
6.2 Disposal
The safety switchgear must be disposed of in an appropriate manner in
accordance with the national prescriptions and legislations.