schmersal SRB 207AN User manual

SRB 207AN
Operating instructions
Safety-monitoring module
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-monitoring module. The
operating instructions 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
selection, 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-monitoring module must be exclusively used in accordance
with the versions listed below or for the applications authorised by the
manufacturer. 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
instructions 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
provided 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 Target group: authorised qualied personnel..................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 Purpose ..............................................2
2.4 Technical data .........................................2
2.5 Safety classication .....................................3
3 Mounting
3.1 General mounting instructions .............................3
3.2 Dimensions ...........................................3
4 Electrical connection
4.1 General information for electrical connection..................3
5 Operating principle and settings
5.1 Operating principle after the operating voltage is switched on ....3
5.2 LED functions..........................................3
5.3 Notes ................................................4
6 Set-up and maintenance
6.1 Functional testing.......................................4
6.2 Maintenance ..........................................4
7 Disassembly and disposal
7.1 Disassembly...........................................4
7.2 Disposal ..............................................4
8 Appendix
8.1 Wiring examples .......................................4
8.2 Start conguration ......................................4
8.3 Sensor conguration ....................................5
8.4 Actuator conguration ...................................5
8.5 Pin conguration (depending on the number of doors) ..........6
9 EU Declaration of conformity
x.000 / 11.2017 / v.A. - 101170115-EN / E / 2017-11-07 / AE-Nr. 8306
EN Operating instructions. . . . . . . . . . . . .pages 1 to 8
Original

2
Operating instructions
Safety-monitoring module SRB 207AN
EN
1.6 Warning about misuse
In case of inadequate or improper use or manipulations of
the safety-monitoring module, personal hazards or damage
to machinery or plant components cannot be excluded.
The relevant requirements of the standards ISO 14119 and
ISO 13850 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
resulting from the use of unauthorised spare parts or accessories.
For safety reasons, invasive work on the device as well as arbitrary
repairs, 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.
The safety-monitoring module must only be used when the enclosure is
closed, i.e. with the front cover fitted.
2. Product description
2.1 Ordering code
This operating instructions manual applies to the following types:
SRB 207AN
Only if the information described in this operating instructions
manual are realised correctly, the safety function and therefore
the compliance with the Machinery Directive is maintained.
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 Purpose
The safety-monitoring module for integration in safety circuits is
designed for fitting in control cabinets. It is used for the safe evaluation
of the signals of positive break position switches for safety functions or
magnetic safety sensors on sliding, hinged and removable safety guards
as well as emergency stop control devices. Up to 6 safety guards can be
monitored by means of the AES 207AN safety-monitoring module.
Design
The safety-monitoring module has a multichannel structure. It includes
safety relays with monitored positive action contacts. The NO contacts
of the relays, which are wired in series, build the enabling contacts. 6
signalling outputs signal the position of the corresponding safety guard.
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
General data:
Standards: EN 60204-1, EN 60947-5-1
ISO 13849-1, IEC 61508
Climate resistance: EN 60068-2-78
Mounting: snaps onto standard DIN rail to EN 60715
Terminal designations: EN 60947-1
Material of the housings: Plastic, glass-fibre reinforced
thermoplastic, ventilated
Material of the contacts: AgCdO, self-cleaning, positive drive
Weight: 300 g
Start conditions: Automatic or start button
Feedback circuit (Y/N): yes
Pull-in delay for automatic start: typ. 120 ms
Pull-in delay with reset button: typ. 30 ms
Drop-out delay in case of emergency stop: typ. 20 ms / max.
35 ms
Drop-out delay on "supply failure": On request
Mechanical data:
Connection type: Screw connection
Cable section: min. 0,25 mm² / max. 2,5 mm²
Connecting cable: rigid or flexible
Tightening torque for the terminals: 0.6 Nm
With removable terminals (Y/N): yes
Mechanical life: 10 million operations
Electrical life: Derating curve available on request
Resistance to shock: 10 g / 11 ms
Resistance to vibrations to EN 60068-2-6: 10 ... 55 Hz,
amplitude 0.35 mm
Ambient conditions:
Ambient temperature: –25 °C … +45 °C
Storage and transport temperature: –40 °C … +85 °C
Protection class: Enclosure: IP40
Terminals: IP20
Clearance: IP54
Air clearances and creepage
distances to IEC 60664-1: 4 kV/2 (basic insulation)
EMC rating: to EMC Directive
Electrical data:
Contact resistance in new state: max. 100 mΩ
Power consumption: max. 3.6 W / 6.6 VA
Rated operating voltage Ue:24 VDC –15% / +20%,
residual ripple max. 10%
Fuse rating for the operating voltage:
- 24 V version: F1: internal electronic trip,
tripping current > 1 A; reset after
disconnection of the supply voltage
Monitored inputs:
Cross-wire detection (Y/N): Yes
Wire breakage detection (Y/N): Yes
Earth leakage detection (Y/N): Yes
Number of NO contacts: 1 … 6 St.
Number of NC contacts: 1 … 6 St.
Cable length: 1,500 m with 1.5 mm²,
2,500 m with 2.5 mm²
Conduction resistance: max. 40 Ω
Outputs:
Number of safety contacts: 2
Number of auxiliary contacts: 1
Number of signalling outputs: 6
Switching capacity of the safety contacts: 13-14 / 23-24:
max. 250 V, 6 A ohmic (inductive in case of
appropriate protective wiring)
Fuse rating of the safety contacts: 6.3 A slow blow
Utilisation category to EN 60947-5-1: AC-15: 230 V / 6 A
DC-13: 24 V / 6 A
Dimensions H × W × D: 100 mm × 45 mm × 121 mm
The data specified in this manual are applicable when the
component is operated with rated operating voltage Ue±0%.

3
SRB 207AN
Operating instructions
Safety-monitoring module
EN
2.5 Safety classification
Standards: ISO 13849-1, IEC 61508
PL: up to e
Control category: up to 3
DC: 99% (high)
CCF: > 65 points
PFH value: ≤ 2,00 × 10-8/h
SIL: up to 3
Service life: 20 years
The PFH value of 2.00 × 10-8/h applies to the combinations of contact
load (current through enabling contacts) and number of switching
cycles (nop/y) mentioned in the table below. At 365 operating days per
year and a 24-hours operation, this results in the below-mentioned
switching cycle times (tcycle) for the relay contacts.
Diverging applications upon request.
Contact load nop/y tcycle
20 % 525,600 1.0 min
40 % 210,240 2.5 min
60 % 75,087 7.0 min
80 % 30,918 17.0 min
100 % 12,223 43.0 min
3. Mounting
3.1 General mounting instructions
Mounting: snaps onto standard DIN rails to EN 60715.
Snap the bottom of the enclosure slightly tilted forwards in the DIN rail
and push up until it latches in position.
To avoid EMC disturbances, the physical ambient and
operational conditions at the place where the product is
installed, must meet the provisions laid down in the
paragraph "Electromagnetic Compatibility (EMC)"
of EN 60204-1.
3.2 Dimensions
Device dimensions (H/W/D): 100 x 45 x 121 mm
4. Electrical connection
4.1 General information for electrical connection
As far as the electrical safety is concerned, the protection
against unintentional contact of the connected and therefore
electrically interconnected apparatus and the insulation of the
feed cables must be designed for the highest voltage, which
can occur in the device.
The electrical connection may only be carried out by
authorised personnel in a de-energised condition.
Wiring examples: see appendix
5. Operating principle and settings
5.1 Operating principle after the operating voltage is switched on
With the guard door closed or the emergency stop command devices
unlocked, the enabling paths are closed as soon as the start button is
pushed. During the start command, the falling edge is detected, when
the contacts of the downstream relays acting on the feedback circuit
are closed.
If the safety guard is opened or the emergency-stop button is actuated,
the enabling paths of the safety-monitoring module will open. The
machine is stopped and the LED K1 and K2 will go out. The
corresponding signal output signals which guard was opened.
Inputs S11/S12-S22/S73/S74;
S31/S32-S42/S83/S84;
S51/S52-S62/S93/S94
Safety switches or emergency stop command devices with one NC
and one NO contact must be connected to the inputs. If not all inputs
are wired, a bridge must be established between Sx1 and Sx2 of the
non-used input.
Start button/feedback circuit X1/X2
Connect start button/feedback circuit to the inputs X1 and X2 according
to the wiring diagram
Automatic start X1-X3
The automatic start is programmed by connecting the feedback circuit to
the terminals X1-X3. If no start button and no feedback circuit is used, a
bridge must be established between X1 and X3.
Outputs
Enabling paths 13-14, 23-24: NO contacts for safety function
Signalling output Y1-Y6
0 V safety guard open / no enabling signal
24 V safety guard closed / enabling signal
Auxiliary contact 31-32
Conditions of the enabling paths
The signalling outputs and the auxiliary contact must not be integrated
in the safety circuit.
5.2 LED functions
• K1: Status channel 1
• K2: Status channel 2
• Ui: Status internal operating voltage (LED is on, when the operating
voltage on the terminals A1-A2 is ON and the fuse has not been
triggered)
K1
Ui
K2
13
A1
A1
23 31 S11
X1 X2 X3
S74S73 S83 S93 Y1 Y3 Y5
14 24 32 S84 Y4
S12 S31 S32 S42
S22 S51 S52 S62
S94 Y2 Y6
SRB 207AN
Fig. 1

4
Operating instructions
Safety-monitoring module SRB 207AN
EN
5.3 Notes
Signalling outputs must not be used in safety circuits.
Due to the operating principle of the electronic fuse, the
customer must check that no hazard is caused by an
unexpected restart in circuits without reset button
(automatic reset).
6. Set-up and maintenance
6.1 Functional testing
The safety function of the safety-monitoring module must be tested.
The following conditions must be previously checked and met:
1. Correct fixing
2. Check the integrity of the cable entry and connections
3. Check the safety-monitoring module's enclosure for damage.
4. Check the electrical function of the connected sensors and their
influence on the safety-monitoring module and the downstream
actuators
6.2 Maintenance
A regular visual inspection and functional test, including the following
steps, is recommended:
1. Check the correct fixing of the safety-monitoring module
2. Check the cable for damages
3. Check electrical function
If a manual functional check is necessary to detect a possible
accumulation of faults, then this must take place during the
intervals noted as follows:
• at least every month for PL e with category 3 or
category 4 (according to ISO 13849-1) or SIL 3 with HFT
(hardware fault tolerance) = 1 (according to IEC 62061);
• at least every 12 months for PL d with category 3
(according to ISO 13489-1) or SIL 2 with HFT
(hardware fault tolerance) = 1 (according to IEC 62061).
Damaged or defective components must be replaced.
7. Disassembly and disposal
7.1 Disassembly
The safety-monitoring module must be disassembled in a de-energised
condition only. Push up the bottom of the enclosure and hang out
slightly tilted forwards.
7.2 Disposal
The safety-monitoring module must be disposed of in an appropriate
manner in accordance with the national prescriptions and legislations.
8. Appendix
8.1 Wiring examples
Dual-channel control, shown for a guard door monitor; with two
contacts, where at least one is a positive break contact; with
external reset button
J
• Relay outputs: Suitable for 2-channel control, for increase in capacity
or number of contacts by means of contactors or relays with positive-
guided contacts.
• The control system recognises wire-breakage, earth faults and cross-
wire shorts in the monitoring circuit.
•
S
= Feedback circuit
13
14
23 31
24 32
K1
K2
L1
A
Ansteuerlogik/
Control circuit K1
K2
A1
A2
S11X2 S12 S22 S73
Y1 Y2 Y3 Y4 Y5 Y6
S31 S32 S42 S51 S52 S62X1
K1
F1
UiUB
K2
S72 X3
J
S
N
KA
KB
KA
KB
Fig. 2
8.2 Start configuration
External reset button (non-monitored start) (see Fig. 3)
• The external reset button is integrated in the feedback circuit in series.
• The manual start or the activation of the module occurs when the
button is pressed (not when it is released!).
Automatic start (see Fig. 4)
• The automatic start is programmed by connecting the feedback circuit
to the terminals X1-X3. If the feedback circuit is not required, establish
a bridge.
• Caution: Not admitted without additional measure due to the risk
of gaining access by stepping behind!
• When the SRB 207AN safety-monitoring module is used with the
operating mode "Automatic start", an automatic restart after a
shutdown in case of emergency must be prevented by the upstream
control to EN 60204-1 paragraph 9.2.5.4.2.
Due to the operating principle of the electronic fuse,
the customer must check that no hazard is caused by
an unexpected restart in circuits without reset button
(automatic reset).
X2
X1
K
A
J
K
B
K
BS
K
A
X3
X1
Fig. 3 Fig. 4

5
SRB 207AN
Operating instructions
Safety-monitoring module
EN
8.3 Sensor configuration
Dual-channel emergency stop circuit with command devices to
ISO 13850 and EN 60947-5-5 (Fig. 5)
Dual-channel guard door monitoring circuit with interlocking
device to ISO 14119 (see Fig. 5)
Dual-channel control of magnetic safety switches according to
EN 60947-5-3 (see Fig. 5)
• The control system recognises wire breakage and earth faults in the
control circuit.
• Cross-wire shorts between the control circuits are detected.
• Category 3 – PL e to ISO 13849-1 possible.
To control the risk of error accumulation, which is especially required
in category 3 – PL e, we recommend regularly checking the circuit by
means of a start-up test
EMERGENCY STOP Door switch Magnetic reed switches
S11
S22
S11
S74S12 S74
S73 S73
S31
S42
S31
S84S32 S84
S83 S83
S51
S62
S51
S94S52 S94
S93 S93
AA
AA
AA
S11
S22
S11
S74S12 S74
S73 S73
S31
S42
S31
S84S32 S84
S83 S83
S51
S62
S51
S94S52 S94
S93 S93
S11
S22
S11
S74S12 S74
S73 S73
S31
S42
S31
S84S32 S84
S83 S83
S51
S62
S51
S94S52 S94
S93 S93
SS
SS
SS
Fig. 5
The connection of magnetic safety switches to the
SRB 207AN safety-monitoring module is only admitted
when the requirements of the standard EN 60947-5-3
are observed.
As the technical data are regarded, the following minimum
requirements must be met:
– switching capacity: min. 240 mW
– switching voltage: min. 24 VDC
– switching current: min. 10 mA
For example, the following safety sensors meet the
requirements:
– BNS33-02z-2187, BNS33-02zG-2187
– BNS260-02z, BNS260-02zG
– BNS260-02-01z, BNS260-02-01zG
When sensors with LED are wired in the control circuit
(protective circuit), the following rated operating voltage
must be observed and respected:
– 24 VDC with a max. tolerance of –5%/+20 %
Otherwise availability problems could occur, especially in
series-wired sensors, where a voltage drop in the control
circuit is triggered by LED's for instance.
8.4 Actuator configuration
Single-channel control (see Fig. 6)
• Suitable for increase in capacity or number of contacts by means of
contactors or relays with positive-guided contacts.
• If the feedback circuit
is not required, establish a bridge.
•
S
= Feedback circuit
Dual-channel control with feedback circuit (Fig. 7)
• Suitable for increase in capacity or number of contacts by means of
contactors or relays with positive-guided contacts.
• If the feedback circuit is not required, establish a bridge.
•
S
= Feedback circuit
X1 X2 13
14
K
A
K
A
K
A
S
L1
N
X1 X2 13
14
K
B
K
A
K
B
K
A
K
B
L1
N
K
A
S
Fig. 6 Fig. 7

6
Operating instructions
Safety-monitoring module SRB 207AN
EN
8.5 Pin configuration (depending on the number of doors)
(Unused sensor inputs must be accordingly bridged)
Number of sensors to be monitored: 1; pin configuration:
NC contacts S11/S12
NO contacts S73/S74
Bridges S11/S22
S31/S32/S42
S51/S52/S62
Number of sensors to be monitored: 2; pin configuration:
NC contacts 1 S11/S12
NC contacts 2 S11/S22
NO contacts 1 S73/S74
NO contacts 2 S73/S74
Bridges S31/S32/S42
S51/S52/S62
Number of sensors to be monitored: 3; pin configuration:
NC contacts 1 S11/S12
NC contacts 2 S11/S22
NC contacts 3 S31/S32
NO contacts 1 S73/S74
NO contacts 2 S73/S74
NO contacts 3 S83/S84
Bridges S31/S42
S51/S52/S62
Number of sensors to be monitored: 4; pin configuration:
NC contacts 1 S11/S12
NC contacts 2 S11/S22
NC contacts 3 S31/S32
NC contacts 4 S31/S42
NO contacts 1 S73/S74
NO contacts 2 S73/S74
NO contacts 3 S83/S84
NO contacts 4 S83/S84
Bridges S51/S52/S62
Number of sensors to be monitored: 5; pin configuration:
NC contacts 1 S11/S12
NC contacts 2 S11/S22
NC contacts 3 S31/S32
NC contacts 4 S31/S42
NC contacts 5 S51/S52
NO contacts 1 S73/S74
NO contacts 2 S73/S74
NO contacts 3 S83/S84
NO contacts 4 S83/S84
NO contacts 5 S93/S94
Bridges S51/S62
Number of sensors to be monitored: 6; pin configuration:
NC contacts 1 S11/S12
NC contacts 2 S11/S22
NC contacts 3 S31/S32
NC contacts 4 S31/S42
NC contacts 5 S51/S52
NC contacts 6 S51/S62
NO contacts 1 S73/S74
NO contacts 2 S73/S74
NO contacts 3 S83/S84
NO contacts 4 S83/S84
NO contacts 5 S93/S94
NO contacts 6 S93/S94
Bridges: none

7
EN
SRB 207 AN-D-EN
SRB 207AN
Operating instructions
Safety-monitoring module
9. EU Declaration of conformity
The currently valid declaration of conformity can be
downloaded from the internet at www.schmersal.net.
Place and date of issue: Wuppertal, 26 November 2017
Authorised signature
Philip Schmersal
Managing Director
EU Declaration of conformity
Original K.A. Schmersal GmbH & Co. KG
Möddinghofe 30
42279 Wuppertal
Germany
Internet: www.schmersal.com
We hereby certify that the hereafter described components both in their basic design and construction conform
to the applicable European Directives.
Name of the component: SRB 207AN
Description of the component: Safety-monitoring module for emergency stop circuits,
guard door monitoring and magnetic safety switches
Relevant Directives: Machinery Directive
EMC-Directive
RoHS-Directive
2006/42/EC
2014/30/EU
2011/65/EU
Applied standards: EN 60947-5-1:2004 + AC:2005 + A1:2009,
EN ISO 13850:2015,
EN ISO 13849-1:2015,
EN ISO 13849-2:2012
Notied body, which approved
the full quality assurance system,
referred to in Appendix X, 2006/42/EC:
TÜV Rheinland Industrie Service GmbH
Alboinstr. 56, 12103 Berlin
ID n°: 0035
Person authorised for the compilation
of the technical documentation:
Oliver Wacker
Möddinghofe 30
42279 Wuppertal

K. A. Schmersal GmbH & Co. KG
Möddinghofe 30, D - 42279 Wuppertal
Postfach 24 02 63, D - 42232 Wuppertal
Phone: +49 - (0)2 02 - 64 74 - 0
Telefax: +49 - (0)2 02 - 64 74 - 1 00
E-Mail: [email protected]
Internet: http://www.schmersal.com