schmersal SRB 202CS/T Operating Instructions Manual

schmersal
Marca
schmersal
Modello
SRB 202CS/T
Tipo
Operating Instructions Manual
SRB 202CS / SRB 202CS/T / SRB 202CA/T /
SRB 202CA/QT / SRB 202CA / SRB 202CA/Q
Operating instructions
Safety-monitoring module
EN
1
EN
Operating instructions...................... pages 1 to 8
Translation of the original operating instructions
FR
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actuelle du mode d’emploi
dans votre langue nationale
ofcielle sur l’Internet,
www.schmersal.net.
ES
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nuestra página de Internet
www.schmersal.net.
NL
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Internet, www.schmersal.net.
IT
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nato nella vostra lingua (lingua
ufciale UE) è scaricabile in
Internet all‘indirizzo
www.schmersal.net.
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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 qualied 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 specications 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 proper functionality of the entire machinery 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-specic installation standards as well as all prevailing
safety regulations and accident prevention rules.
Further technical information can be found in the Elan
catalogues or in the online catalogue on the Internet:
www.schmersal.net.
The information contained in this operating instructions manual is provided
without liability und is subject to technical modications.
There are no residual risks, provided that the safety instructions as well
as the instructions regarding mounting, commissioning, operation and
maintenance are observed.
1.6 Warning about misuse
In case of inadequate or improper use or manipulations of the
safety-monitoring module, personal hazards or damage to ma-
chinery or plant components cannot be excluded. The relevant
requirements of the standard EN 1088 must be observed.
21.01.2010 / Index: 441/09 / Teile-Nr. 1176229-EN
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
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 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 LED functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
5.2 Description of the terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
8.3 Sensor conguration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
8.4 Actuator conguration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
8.5 Flowcharts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
8.6 EC Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
2
Operating instructions
Safety-monitoring module
SRB 202CS / SRB 202CS/T / SRB 202CA/T /
SRB 202CA/QT / SRB 202CA / SRB 202CA/Q
EN
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 re-
pairs, conversions and modications to the device are strictly forbidden;
the manufacturer shall accept no liability for damages resulting from
such invasive work, arbitrary repairs, conversions and/or modications
to the device.
2 Product description
2.1 Ordering code
This operating instructions manual applies to the following types:
SRB 202
➀
No. Option Description
➀
CS Reset not monitored, optionally automatic reset*
CS/T Reset monitored*
CA Reset not monitored, optionally automatic reset*,
switch-off level 2 with antivalent inputs
CA/T Reset monitored*, switch-off level 2 with
antivalent inputs, cross-wire short detection*
CA/Q Reset not monitored, optionally automatic reset*,
switch-off level 2 with antivalent inputs
CA/QT Reset monitored*, switch-off level 2 with
antivalent inputs, cross-wire short detection*
* with reference to switch-off level 1
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 specications apply accordingly, provided that they correspond
to the standard version.
2.3 Destination and use
The safety-monitoring modules for integration in safety circuits are
designed for tting in control cabinets. They are used for the safe
evaluation of the signals of positive break position switches or magnetic
safety sensors for safety functions on sliding, hinged and removable
safety guards as well as emergency stop control devices and AOPD’s.
The safety function is dened as the opening of enabling circuits 13-24
when the inputs S31-S32 and/or S41-S42 (S43-S44) are opened and
as the opening of enabling circuits 13-14 and 13-24 when the inputs
S12 and/or S22 are opened.The safety-relevant current paths with the
output contacts 13-14 and 13-24 meet the following requirements under
observation of a B
10d
value assessment (also refer to “Requirements to
DIN EN ISO 13849-1”):
– Control category 4 – PL e to DIN EN ISO 13849-1
– corresponds to SIL 3 to DIN EN 61508-2
– corresponds to SILCL 3 to DIN EN 62061
(corresponds to control category 4 to DIN EN 954-1)
To determine the Performance Level (PL) of the entire safety function
(e.g. sensor, logic, actuator) to DIN EN ISO 13849-1, an analysis of all
relevant components is required.
2.4 Technical data
General data
Standards: IEC/EN 60204-1, EN 60947-5-1,
EN ISO 13849-1; IEC/EN 61508
Climate resistance: EN 60068-2-78
Fixing: Snaps onto standard DIN rails to
DIN EN 60715
Terminal designations: EN 60947-1
Material of the enclosure: glass-bre reinforced thermoplastic,
ventilated
Material of the contacts: AgSnO, AgNi, self-cleaning,
positive drive
Weight: 235 g
Start conditions Automatic or start button
(Refer to 2.1 Ordering code)
Feedback circuit (Y/N): Yes
Pull-in delay with reset button: Switch-off level 1: typ. 40 ms
Switch-off level 2: typ. 0.5 sec.
Drop-out delay in case
of emergency stop:
typ. 50 ms
Mechanical data
Connection type: Screw connection
Cable section: min. 2 mm
2
/ max. 2 mm
2
Connecting cable: rigid or exible
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: IP 40
Terminals: IP 20
Wiring compartment: IP 54
Air clearances and creepage
distances to IEC/EN 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. 4.4 W
Rated operating voltage U
e
: 24 VDC –15%/+20%,
residual ripple max. 10%
Max. fuse rating of
the operating voltage:
electronic fuse,
tripping current > 1 A;
reset after approx. 1 sec.
Monitored inputs
Cross-wire detection (Y/N): Refer to 2.1 Ordering code
Wire breakage detection (Y/N): Yes
Earth leakage detection (Y/N): Yes
Number of NO contacts: CS, CS/T: 0 pc.
CA, CA/T, CA/Q, CA/QT: 1 pc.
Number of NC contacts: CS, CS/T: 4 pc
CA, CA/T, CA/Q, CA/QT: 3 pc
Current and voltage limitation
of the control contacts:
S31-S32, S43-S44:
26 VDC / 100 mA26 VDC / 100 mA
Cable lengths: 1-channel without cross-wire
short detection:
– 1,500 m = 1.5 mm²
– 2,500 m = 2.5 mm²
2-channel with or without
cross-wire short detection
Conduction resistance: max. 40 Ω
3
SRB 202CS / SRB 202CS/T / SRB 202CA/T /
SRB 202CA/QT / SRB 202CA / SRB 202CA/Q
Operating instructions
Safety-monitoring module
EN
Outputs
Number of safety contacts: 2
Number of auxiliary contacts: 2
Switching capacity of the
safety contacts:
13-14; 13-24:
max. 250 V, 6 A ohmic (inductive in
case of appropriate protective wiring)
max. residual current 6 A
Switching capacity of
the auxiliary contacts:
31-32, 31-42:
24 VDC / 2 A
Fuse rating of the
safety contacts
6.3 A slow blow
Recommended fuse
for the auxiliary contacts
2 A slow blow
Utilisation category to
EN 60947-5-1:
AC-15: DC-13: EN 60947-5-1:2007
Dimensions (H/W/D): 100 mm x 22.5 mm x 121 mm
The data specied in this manual is applicable when the component is
operated with rated operating voltage U
e
±0%.
2.5 Safety classication
Standards: EN ISO 13849-1, IEC 61508,
EN 60947-5-1
PL: Stop 0: up to e
Control category: Stop 0: up to 4
DC: Stop 0: 99% (high)
CCF: > 65 points
SIL: Stop 0: up to 3
Service life: 20 years
B
10d
value (for one channel): Low voltages range 20%: 20,000,000
40%: 7,500,000
60%: 2,500,000
80%: 1,000,000
Maximum load 100%: 400,000
MTTF
B d x x
h
s/h3600
d
10d op op
op
n
0,1 x n
op
t
cycle
For an average annual demand rate of n
op
= 126,720 cycles
per year,
Performance Level PL e can be obtained at maximum load.
n
op
= average number of activations per year
d
op
= average number of operating days per year
h
op
= average number of operating hours per day
t
cycle
= average demand rate of the safety function in s
(e.g. 4 × per hour = 1 × per 15 min. = 900 s)
(Specications can vary depending on the application-specic
parameters h
op
, d
op
and t
cycle
as well as the load.)
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.
3.2 Dimensions
All measurements in mm.
Device dimensions (H/W/D): 100 x 22.5 x 121 mm
with plugged-in terminals: 120 × 22.5 × 121 mm
4 Electrical connection
4.1 General information for electrical connection
Wiring examples: see appendix
The electrical connection may only be carried out
by authorised personnel in a de-energised condition.
5 Operating principle and settings
5.1 LED functions
• K1: Status channel A
• K2: Status channel B
• K3: Status channel C
• K4: Status channel D
• U
B
: Status operating voltage (LED is on, when the operating
voltage on the terminals A1-A2 is ON)
• U
i
: 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)
5.2 Description of the terminals
Voltages: A1
A2
+24 VDC
0 VDC
Inputs: S12
S22
S31-S32
S41-S42
S43-S44
Switch-off level 1, input channel 1
Switch-off level 2, input channel 2
Switch-off level 2, input channel 1
Switch-off level 2, input channel 2
(SRB 202CS, 202CS/T)
Switch-off level 2, input channel 2
(SRB 202CA, SRB 202CA/T,
SRB 202CA/Q, SRB 202CA/QT)
Outputs: 13-14
13-24
31-32
31-42
First safety enabling circuit (stop 0),
switch-off level 1
Second safety enabling circuit (stop 0),
switch-off level 2
Auxiliary NC contact, switch-off level 1
(must not be used in safety circuits)
Auxiliary NC contact, switch-off level 2
(must not be used in safety circuits)
Start: X1
X2
Feedback circuit, manual start (reset button),
automatic start, switch-off level 1
Feedback circuit, manual start (reset button),
automatic start, switch-off level 2
UB
Ui
K1
K2
K3
K4
24 14 13 31
X1
S32 S42
S41
X2 A2
S31 32 42
S22 S12 A1
SRB
202
…*
Fig. 1
4
Operating instructions
Safety-monitoring module
SRB 202CS / SRB 202CS/T / SRB 202CA/T /
SRB 202CA/QT / SRB 202CA / SRB 202CA/Q
EN
L1
K1
K1 K2
K2
K3
K4
42
13
24
X2S41S22S12A1
24 VDC
J
X1 S31 S32S42 31
14
A2
F1
UB
K
A
K
B
K
C
K
D
K
C
K
D
a)
K1 K3 K4K2
32
K3 K4
S
K
B
N
Ui
K
A
K
C
K
D
Fig. 2: SRB 202CS, 202CS/T
a) Logic
Dual-channel control, shown for a emergency stop circuit;
with two contacts A and B and a guard door monitor with two
contacts C and D, where at least one is a positive break contact;
with external reset button J (related on the switch-off level 1)
(see Fig. 3)
• 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 of the emergency stop circuit detects wire breakage
and earth faults (cross-wire shorts in the SRB 202CA/QT and SRB
202CA/Q versions). The control system of the door monitoring circuits
detects wire breakage, earth faults and cross-wire shorts.
• S = Feedback circuit
Channel B of SRB 202CA/Q and SRB 202CA/QT: 0 V – S22
(see Fig. 4)
L1
K1
K1 K2
K2
K3
K4
42
13
24
X2S43S22S12A1
24 VDC
J
X1 S31 S32S44 31
14
A2
F1
UB
K
A
K
B
K
C
K
D
K
C
K
D
a)
K1 K3 K4K2
32
K3 K4
S
K
B
N
Ui
K
A
K
C
K
D
Fig. 3: SRB 202CA, 202CA/T, SRB 202CA/Q, SRB 202CA/QT
a) Logic
S12 S22
24 VCC
0 V
Fig. 4
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 xing
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 inuence 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 xing of the safety-monitoring module
2. Check the cable for damages
3. Check electrical function
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.
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 emergency stop circuit;
with two contacts A and B and a guard door monitor with two
contacts C and D, where at least one is a positive break contact;
with external reset button J (related on the switch-off level 1)
(see Fig. 2)
• 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 and earth faults in the
monitoring circuit.
• S = Feedback circuit
5
SRB 202CS / SRB 202CS/T / SRB 202CA/T /
SRB 202CA/QT / SRB 202CA / SRB 202CA/Q
Operating instructions
Safety-monitoring module
EN
8.2 Start conguration
External reset button (Fig. 5)
• The external reset button is wired to the terminals X1 (without edge
detection for switch-off level 1) and X2 (without edge detection for
switch-off level 2).
• The external reset button is integrated in the feedback circuit in series.
K
A
K
B
24 VDC
J J
X2
24 VDC
K
C
K
D
K
C
K
D
X1
Fig. 5
left = switch-off level 1
right = switch-off level 2 (SRB 202CA, SRB 202CS and SRB 202CA/Q)
External reset button (Fig. 6)
• The external reset button is wired to the terminals X1 (with edge
detection for switch-off level 1) and X2 (without edge detection for
switch-off level 2).
• The external reset button is integrated in the feedback circuit in series.
* Automatic start at switch-off level 2: the reset button J must be
replaced with a bridge.
K
A
K
B
24 VDC
J J
X2
*
24 VDC
K
C
K
D
K
C
K
D
X1
Fig. 6
left = switch-off level 1
right = switch-off level 2 (SRB 202CA/T, SRB 202CS/T and SRB 202CA/QT)
Automatic start (see Fig. 7)
• The automatic start is programmed by connecting the feedback
circuit to the terminals X1 (referring to the switch-off level 1) and X2
(referring to the switch-off level 2). Feedback circuits are not required
to be replaced by a bridge.
• When the 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 and 10.8.3.
* An external reset button for a manual start can be installed in
switch-off level 2.
K
A
K
B
24 VDC
X2
*
24 VDC
K
C
K
D
K
C
K
D
X1
Fig. 7
left = switch-off level 1
right = switch-off level 2 (SRB 202CA, SRB 202CS and SRB 202CA/Q)
8.3 Sensor conguration
8.3.1 Sensor conguration superordinated switch-off level 1
Single-channel emergency stop circuit with command devices
to DIN EN ISO 13850 (EN 418) and EN 60947-5-5 (Fig. 8)
• Wire breakage and earth leakage in the control circuits are detected.
Dual-channel emergency stop circuit with command devices
to DIN EN ISO 13850 (EN 418) and EN 60947-5-5 (Fig. 9)
• Wire breakage and earth leakage in the control circuits are detected.
• Cross-wire shorts between the control circuits are not detected.
Dual-channel emergency stop circuit with command devices
to DIN EN ISO 13850 (EN 418) and EN 60947-5-5 (Fig. 10)
• Wire breakage and earth leakage in the control circuits are detected.
• Cross-wire shorts between the control circuits are detected.
S12 S22
S12
24 VDC
S12 S22
24 VDC24 VDC
S12 S22
24 VDC 0 VDC
Fig. 8
SRB 202CA,
SRB 202CS,
SRB 202CA/T,
SRB 202CS/T
Fig. 9
SRB 202CA,
SRB 202CS,
SRB 202CA/T,
SRB 202CS/T
Fig. 10
SRB 202CA/Q,
SRB202CA/QT
8.3.2 Sensor conguration, partially functioning switch-off level 2
Single-channel guard door monitoring circuit with interlocking
devices to EN 1088 (Fig. 11)
• With one positive-break position switch.
• Wire breakage and earth leakage in the control circuits are detected.
Dual-channel guard door monitoring circuit with interlocking
device to EN 1088 (Fig. 12)
• With at least one positive-break position switch
• The control system recognises wire-breakage and earth faults in
the control circuit.
• Cross-wire shorts between the control circuits are not detected.
Dual-channel guard door monitoring circuit with interlocking
device to EN 1088 (Fig. 13)
• With at least one positive-break position switch
• The control system recognises wire-breakage and earth faults in
the control circuit.
• Cross-wire shorts between the control circuits are detected.
S32
S31
S42
S32
S32
S31
S42
S41
S32
S31
S44
S43
Fig. 11
SRB 202CS,
SRB 202CS/T
Fig. 12
SRB 202CS,
SRB 202CS/T
Fig. 13
SRB 202CA,
SRB 202CA/T,
SRB 202CA/Q,
SRB 202CA/QT
6
Operating instructions
Safety-monitoring module
SRB 202CS / SRB 202CS/T / SRB 202CA/T /
SRB 202CA/QT / SRB 202CA / SRB 202CA/Q
EN
8.3.3 Sensor conguration
Dual-channel control of magnetic safety switches to EN 60947-5-3
(see Fig. 14)
• The control system recognises wire-breakage, earth faults and
cross-wire shorts in the control circuits.
S32
S31
S44
S43
Fig. 14
SRB 202CA, SRB 202CA/T, SRB 202CA/Q, SRB 202CA/QT
The connection of magnetic safety switches to the
SRB 202C.. safety-monitoring modules is only admitted
when the requirements of the standard EN 60 947-5-3
are observed.
As the technical data are regarded, at least the following
requirements must be met:
• Switching capacity: min. 3 W
• Switching voltage: min. 30 VDC
• Switching current: min. 10 mA
For example, the following safety sensors from Schmersal
meet the requirements:
• BNS 33-11z, BNS 33-12z-2063, BNS 33-11z-2063
• BNS 250-11z
• BNS 120-11z
• BNS 180-11z
• BNS 303-11z
Caution! 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 conguration
Single-channel control (see Fig. 15)
• Suitable for increase in capacity or number of contacts by means of
contactors or relays with positive-guided contacts.
• S = Feedback circuit:
if the feedback circuit is not required, establish a bridge.
• A = switch-off level 1, B = switch-off level 2
* Disabling of the enabling circuits 13-14, 13-24 when switch-off level 1
is triggered, disabling of the enabling circuit 13-24 when switch-off
level 2 is triggered
Dual-channel control (Fig. 16)
• Suitable for increase in capacity or number of contacts by means of
contactors or relays with positive-guided contacts.
• S = Feedback circuit:
if the feedback circuit is not required, establish a bridge.
• A = switch-off level 1, B = switch-off level 2
* Disabling of the enabling circuits 13-14, 13-24 when switch-off level
1 is triggered, disabling of the enabling circuit 13-24 when switch-off
level 2 is triggered
X1 X2 13
14
L1
N
K
A
K
A
K
B
24
K
B
K
B
* *
J J
X1 X2 13
14
24 VDC
N
K
A
K
B
K
C
K
D
K
C
K
D
24
*
K
A
K
B
K
C
K
D
*
J
J J
Fig. 15 Fig. 16
7
SRB 202CS / SRB 202CS/T / SRB 202CA/T /
SRB 202CA/QT / SRB 202CA / SRB 202CA/Q
Operating instructions
Safety-monitoring module
EN
8.5 Flowcharts
SRB 202CA, SRB 202CS, SRB 202CA/Q
see Fig. 17
e)
f)
g)
d)
b)
c)
a)
Fig. 17
a) U
B
;
b) Sensor level 1;
c) Reset switch-off level 1;
d) Sensor level 2;
e) Reset switch-off level 2;
f) Authorized operation 13-14 switch-off level 1;
f) Authorized operation 13-24 switch-off level 2;
SRB 202CA/T, SRB 202CS/T, SRB 202CA/QT
see Fig. 18
e)
f)
g)
d)
b)
c)
a)
Fig. 18
a) U
B
;
b) Sensor level 1;
c) Reset switch-off level 1;
d) Sensor level 2;
e) Reset switch-off level 2;
f) Authorized operation 13-14 switch-off level 1;
f) Authorized operation 13-24 switch-off level 2;
8
Operating instructions
Safety-monitoring module
SRB 202CS / SRB 202CS/T / SRB 202CA/T /
SRB 202CA/QT / SRB 202CA / SRB 202CA/Q
EN
SRB202C...-B-EN
8.6 EC Declaration of conformity
EC Declaration of conformity
Translation of the original declaration of conformity
valid as of December 29, 2009
Elan Schaltelemente GmbH & Co. KG
Im Ostpark 2 · 35435 Wettenberg
Germany
Internet: www.elan.de
We hereby certify that the hereafter described safety components both in its basic design and
construction conforms to the applicable European Directives.
Place and date of issue: Wuppertal, October 6, 2009
Authorised signature
Heinz Schmersal
Managing Director
Name of the safety component: SRB 202CS / SRB 202CS/T /
SRB 202CA/T / SRB 202CA/QT /
SRB 202CA / SRB 202CA/Q
Description of the safety component: Safety-monitoring module for emergency
stop circuits, guard door monitoring,
magnetic safety switches and AOPD's
Harmonised EC-Directives: 2006/42/EC EC-Machinery Directive
2004/108/EC EMC-Directive
Person authorized for the compilation
of the technical documentation:
Ulrich Loss
Möddinghofe 30
42279 Wuppertal
Notied body, which approved the full
quality assurance system, referred to
in Appendix X, 2006/42/EC:
TÜV Rheinland Industrie Service GmbH
Alboinstraße 56
12103 Berlin
ID n°: 0035
Elan Schaltelemente GmbH & Co. KG
Im Ostpark 2, D - 35435 Wettenberg
Postfach 1109, D - 35429 Wettenberg
Telefon: +49 (0)641 9848-0
Telefax: +49 (0)641 9848-420
E-Mail: [email protected]
Internet: www.elan.de
Appendix
Note
The currently valid declaration of conformity can be
downloaded from the internet at www.schmersal.net.
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Operating Instructions Manual
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