schmersal RSS 36 User manual

EN Operating instructions. . . . . . . . . . . .pages 1 to 10
Original
RSS 36
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
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 switchgear 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, labelled with the caution or warning symbol above,
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.
Content
x.000 / 01.2020 / v.A. - 103014104-EN / G / 2020-01-27 / AE-Nr. 11919
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 Comprehensive quality insurance to 2006/42/EC ..............2
2.4 Purpose ..............................................2
2.5 Technical data .........................................2
2.6 Safety classication .....................................3
3 Mounting
3.1 General mounting instructions .............................3
3.2 Dimensions ...........................................4
3.3 Switch distance ........................................4
3.4 Adjustment............................................4
4 Electrical connection
4.1 General information for electrical connection..................5
4.2 Serial diagnostic -SD ....................................5
5 Operating principles and coding
5.1 Mode of operation of the safety outputs......................5
5.2 Coding ...............................................5
6 Diagnostic functions
6.1 Operating principle of the diagnostic LEDs ...................6
6.2 Operating principle of the electronic diagnostic output ..........6
6.3 Safety-sensors with serial diagnostic function .................7
7 Set-up and maintenance
7.1 Functional testing.......................................8
7.2 Maintenance ..........................................8
8 Disassembly and disposal
8.1 Disassembly...........................................8
8.2 Disposal ..............................................8
9 Appendix
9.1 Wiring conguration and connector accessories ...............8
9.2 Wiring examples .......................................9
10 EU Declaration of conformity

2
Operating instructions
Safety sensor RSS 36
EN
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.
1.6 Warning about misuse
In case of improper use or manipulation of the safety
switchgear, personal hazards or damages to machinery
or plant components cannot be excluded. 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
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.
2. Product description
2.1 Ordering code
This operating instructions manual applies to the following types:
RSS 36
➀
-
➁
-
➂
-ST with 8-pin connector
No. Option Description
➀
Standard coding
I1 Individual coding
I2 Individual coding, re-teaching enabled
➁
D With diagnostic output
SD With serial diagnostic function
➂Without latching
R With latching, latching force approx. 18 N
RSS 36
➀
-
➁
-
➂
-ST5 with 5-pin connector
No. Option Description
➀
Standard coding
I1 Individual coding
I2 Individual coding, re-teaching enabled
➁
without diagnostic function (on request)
D With diagnostic output
➂
Without latching
R With latching, latching force approx. 18 N
Actuator
RST 36-1 Without latching
RST 36-1-R With latching, latching force approx. 18 N
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 Comprehensive quality insurance to 2006/42/EC
Schmersal is a certified company to appendix X of the Machinery
Directive. As a result, Schmersal is entitled to autonomously conduct
the conformity assessment procedure for the products listed in
Appendix IV of the MD without involving a notified body. The prototype
test certificates are available upon request or can be downloaded from
the Internet at www.schmersal.com.
2.4 Purpose
This non-contact, electronic safety sensor is designed for application in
safety circuits and is used for monitoring the position of movable safety
guards. In this application, the safety sensor monitors the position of
hinged, sliding or removable safety guards by means of the coded
electronic actuator.
The safety function consists of safely switching off the safety outputs
when the safety guard is opened and maintaining the safe switched off
condition of the safety outputs for as long as the safety guard is open.
The safety switchgears are classified according to
ISO 14119 as type 4 switching devices. Designs with
individual coding are classified as highly coded.
Safety sensors and actuators with latching (ordering suffix 'R') must
always be used in pairs. The latching force (approx. 18 N) exercised by
the permanent magnet keeps hatches and small guards closed, also in
a de-energised condition.
The system can be used as a door end stop up to 5 kg at 0.25 m/s.
The diagnostic output of the safety sensor alternatively can be used
as a conventional output or as a “serial output“ with input and output
channel.
Series-wiring (only 8-pin version)
Series-wiring can be set up. Response and risk times remain
unchanged by series-wiring. The number of components is only limited
by the external cable protection according to the technical data and
the line loss. Series-wiring of up to 31 RSS 36 … SD components with
serial diagnostics is possible.
In devices with the serial diagnostics function (ordering suffix -SD), the
serial diagnostics connections are wired in series and connected to a
SD Gateway for evaluation purposes.
Wiring examples for series-wiring, refer to appendix.
The user must evaluate and design the safety chain in
accordance with the relevant standards and the required
safety level. If multiple safety switchgears are involved in
the same safety function, the PFH values of the individual
components must be added.
The entire concept of the control system, in which the safety
component is integrated, must be validated to the relevant
standards.
2.5 Technical data
Standards: IEC 60947-5-3, ISO 13849-1, IEC 61508, IEC 62061
Enclosure: glass-fibre reinforced thermoplastic, self-extinguishing
Working principle: RFID
Frequency band: 125 kHz
Transmitter output: max. –6 dBm
Coding level according to ISO 14119:
- I1-version: high
- I2-version: high
- Standard coding version: low
Actuator: RST 36-1, RST 36-1-R
Fixation sensor / actuator: 2 x M4 cylinder head screw
with washers to DIN 125A / form A
Tightening torque of the fixing screws: 2.2 … 2.5 Nm
Series-wiring
(only 8-pin version): Number of devices unrestricted,
observe external wiring protection,
max. 31 devices with serial diagnostic
Termination:
- ST: Connector plug M12, 8-pole, A-coded
- ST5: Connector plug M12, 5-pole, A-coded

3
RSS 36
Operating instructions
Safety sensor
EN
Switching distances to IEC 60947-5-3:
Typical switching distance styp:12 mm
Assured switching distance sao:10 mm
Assured switch-off distance sar:20 mm
Hysteresis: < 2.0 mm
Repeat accuracy R: < 0.5 mm
Ambient conditions:
Ambient temperature: −25 °C … +70 °C
Storage and transport temperature: −25 °C … +85 °C
Protection class: IP65 / IP67 / IP69 to IEC 60529
Resistance to vibration: 10 … 55 Hz, Amplitude 1 mm
Resistance to shock: 30 g / 11 ms
Switching frequency f: 1 Hz
Reaction time:
- Actuator: ≤ 100 ms
- Inputs: ≤ 0.5 ms
Duration of risk: ≤ 200 ms
Time to readiness: ≤ 2 s
Electrical data:
Rated operating voltage Ue: 24 VDC −15% / +10%
(PELV to IEC 60204-1)
Rated operating current Ie: 0.6 A
Minimum operating current Im:0.5 mA
Required rated short-circuit current: 100 A
Rated insulation voltage Ui:32 V
Rated impulse withstand voltage Uimp: 800 V
No-load current Io:35 mA
Residual current Ir: < 0.5 mA
Protection class: III
Overvoltage category: III
Degree of pollution: 3
Safety inputs X1/X2:
Rated operating voltage Ue1:24 VDC −15% / +10%
(PELV unit)
Current consumption per input: 5 mA
Accepted test pulse duration on input signal: ≤ 1.0 ms
- With test pulse interval of: ≥ 100 ms
Classification: ZVEI CB24I
Sink: C1 Source: C1 C2 C3
Safety outputs Y1/Y2: p-type, short-circuit proof
Operating current Ie1:max. 0,25 A
Utilisation category: DC-12 Ue/Ie24 VDC / 0.25 A
DC-13 Ue/Ie24 VDC / 0.25 A
Voltage drop Ud:Ue< 1 V
Test pulse duration: ≤ 0.3 ms
Test pulse interval: 1000 ms
Classification: ZVEI CB24I
Source: C2 Sink: C1 C2
Diagnostic output: short-circuit proof, p-type
Operating current Ie2:max. 0,05 A
Utilisation category: DC-12 Ue/Ie24 VDC / 0.05 A
DC-13 Ue/Ie24 VDC / 0.05 A
Voltage drop Ud:Ue< 2 V
Serial diagnostic: short-circuit proof
Operating current: 150 mA
Wiring capacitance: max. 50 nF
External cable protection: fuse 2.0 A
Max. ambient 69 °C.
This device complies with part 15 of the FCC Rules and
Industry Canada license-exempt RSS standard(s).
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and
(2) this device must accept any interference received,
including interference that may cause undesired operation.
Le présent appareil est conforme aux CNR d'Industrie
Canada applicables aux appareils radio exempts de licence.
L'exploitation est autorisée aux deux conditions suivantes:
(1) l'appareil ne doit pas produire de brouillage, et
(2) l'utilisateur de l'appareil doit accepter tout brouillage
radioélectrique subi, même si le brouillage est susceptible
d'en compromettre le fonctionnement.
2.6 Safety classification
Standards: ISO 13849-1, IEC 61508, IEC 62061
PL: e
Control Category: 4
PFH value: 2.7 x 10-10 / h
PFD: 2.1 x 10-5
SIL: suitable for SIL 3 applications
Mission time: 20 years
3. Mounting
3.1 General mounting instructions
Please observe the relevant requirements of the
standards ISO 12100, ISO 14119 and ISO 14120.
Ensure the safety sensor and actuator is mounted on a flat surface.
The universal mounting holes provide for a variable mounting by means
of M4 screws (tightening torque 2.2 … 2.5 Nm).
The component can be mounted in any position. The labelled surfaces
of the safety sensor and the actuator have to be opposite. The safety
sensor must only be used within the assured switching distances
≤ sao and ≥ sar.
The actuator must be permanently fitted to the safety guards
and protected against displacement by suitable measures
(e.g. tamperproof screws, gluing, drilling of the screw heads).
To avoid any interference inherent to this kind of system and any
reduction of the switching distances, please observe the following
guidelines:
• The presence of metal chips in the vicinity of the sensor is liable to
modify the switching distance.
• Keep away from metal chips.
• Minimum distance 100 mm between two safety sensors
as well as other systems with same frequency (125 kHz)
Accessories (to be ordered separately)
Kit tamper-proof screws
• 4 x M4x25 incl. washers, ordering code 101217746
• 4 x M4x30 incl. washers, ordering code 101217747
Sealing kit
• Ordering code 101215048
• 8 plugs and 4 washers
• to seal the mounting holes and as spacer
(approx. 3 mm) to facilitate the cleaning below the mounting surface
• also suitable as tampering protection for the screw fixings.

4
Operating instructions
Safety sensor RSS 36
EN
3.2 Dimensions
All measurements in mm.
Safety sensor
106
91
74
78
9
25
4,5
19
6,5
M12
2
22
0,3
0,3
Coding Level: High
V2
Actuator
91
78
2522 0,3
0,3
0,3
V2
Alternative suitable actuators with different design:
refer to www.schmersal.net.
3.3 Switch distance
Switching distances to IEC 60947-5-3:
Typical switching distance styp: 12 mm
Assured switching distance sao: 10 mm
Assured switch-off distance sar: 20 mm
There are new switch distances as per the table below
owing to the necessity of technical modifications (V2).
Please check the design of your guard system following
installation to ensure adherence to the secured switch
distances (≤ sao and ≥ sar) in accordance with the specified
values and adjust the guard system accordingly.
The positions of the designations V2 should be gleaned
from the dimensional drawings under 3.2.
Switching distances in
mm to IEC 60947-5-3
Actuator
RST
Actuator
RST V2
Sensor
RSS
styp 12 12
sao 10 8
sar 16 16
Sensor
RSS V2
styp 12 12
sao 10 10
sar 20 20
With the combination of "old sensor – new actuator (V2)" there
may be limitations in availability owing to the reduced sao
(8 mm). This change has no affect on the performance level.
The side allows for a maximum height misalignment (X) of sensor
and actuator of ± 8 mm (e.g. mounting tolerance or due to guard door
sagging). The axial misalignment (y) is max. ± 18 mm.
Y
X
Latching versions X ± 5 mm, Y ± 3 mm.
The latching force will be reduced by misalignment.
Actuating curves
The actuating curves represent the typical switching distance of
the safety sensor during the approach of the actuator subject to the
actuating direction
Transverse misalignment
-5-20 51015-15 20-10 0
Y [mm]
S [mm]
0
5
10
12
Height misalignment
-5-20-24 51015-15 20
24
-10 0
X [mm]
S [mm]
0
5
10
12
Preferred actuation directions: from front or from side.
3.4 Adjustment
The continuous signal of the yellow LED signals the actuator detection;
the flashing of the yellow LED signals that the safety sensor is actuated
in the hysteresis area.
Recommended Adjustment
Align the safety sensor and actuator at a distance of 0.5 x sao.
The correct functionality of both safety channels must be checked by
means of the connected safety-monitoring module.

5
RSS 36
Operating instructions
Safety sensor
EN
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 outputs can be integrated into the safety circuit of the control
system. For applications of PL e / control category 4 to ISO 13849-1,
the safety outputs of the safety sensor or sensor of the chain must be
wired to a safety monitoring module of the same control category .
Protection is not required when pilot wires are laid. The cables however
must be separated from the supply and energy cables. The max. fuse
rate for a sensor chain depends on the section of the connecting cable
of the sensor.
Requirements for the connected safety-monitoring module
• Dual-channel safety input, suitable for p-type sensors with NO function
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.
As an alternative to a safety-monitoring module, the safety sensors of
the CSS 34F0 or CSS 34F1 series can also be used as first sensor
of a series-wired chain for the direct control and monitoring of safety
contactors (refer to operating manual of CSS 34F0 / CSS 34F1).
If the safety sensor is wired to relays or to non-safety relevant control
components, a new risk analysis must be carried out.
The sensors cyclically switch off the safety output to test them. The
safety-monitoring module therefore does not need to be equipped with
a cross-wire short detection. The switch-off times must be tolerated by
the safety-monitoring module. The switch -off time of the safety sensor
is additionally extended depending on the cable length and the capacity
of the cable used. Typically, a switch-off time of 250 μs is reached with
a 30-m connecting cable.
Configuration of the safety-monitoring module
If the safety sensor is connected to electronic safety-
monitoring modules, we recommend that you set a
discrepancy time of min. 100 ms. The safety inputs of the
safety-monitoring module must be able to blank a test
impulse of approx. 1 ms. The safety-monitoring module does
not need to have a cross-wire short monitoring function, if
necessary, the cross-wire short monitoring function must be
disabled.
4.2 Serial diagnostic -SD
(only 8-pin version)
On wiring SD devices, please pay attention to the voltage
drop on the cables and the current carrying capacity of the
individual components.
Cable design in case of serial diagnostics
The wiring capacitance of the connecting cable of the safety sensor
must not exceed 50 nF.
Depending on the strand structure, normal unshielded 200 m long
control cables LIYY 0.25 mm² to 1.5 mm² have a wiring capacitance of
approx. 20 … 50 nF.
Accessories for the series-wiring
For convenient wiring and series-wiring of SD components,
the SD junction boxes PFB-SD-4M12-SD (variant for the
field) and PDM-SD-4CC-SD (variant for control cabinet on
carrier rail) are available along with additional comprehensive
accessories. Detailed information is available on the Internet,
www.schmersal.net.
5. Operating principles and coding
5.1 Mode of operation of the safety outputs
The safety outputs can be integrated into the safety circuit of the control
system. The opening of a safety guard, i.e. the actuator is removed
out of the active zone of the sensor, will immediately disable the safety
outputs of the sensor (switching distances refer to technical data).
Any error that does not immediately affect the functionality of the safety
sensor (e.g. too high the ambient temperature, interference potential
at a safety output, cross-wire short) will lead to a warning message,
the disabling of the diagnostic output and the delayed shut-down of the
safety outputs. safety outputs are disabled if the error warning is active
for 30 minutes.
The signal combination, diagnostic output disabled and safety channels
still enabled, can be used to stop the production process in a controlled
manner.
After fault rectification, the error message is reset by opening and
re-closing the corresponding safety guard. The safety outputs enable
and allow a restart.
For devices with serial diagnostic, a bit can be set/deleted in the call
telegram to reset the fault.
5.2 Coding
Safety sensors with standard coding are ready to use upon delivery.
Individually coded safety sensors and actuators will require the
following "teach-in" procedure:
1. Energise the safety sensor.
2. Introduce the actuator in the detection range. The teach-in procedure is
signalled at the safety sensor, red LED on, yellow LED flashes (1 Hz).
3. After 10 seconds, brief cyclic flashes (3 Hz) request the switch-off
of the operating voltage of the safety sensor. (If the voltage is not
switched off within 5 minutes, the safety sensor cancels the "teach-
in" procedure and signals a false actuator by 5 red flashes).
4. After the operating voltage is switched back on, the actuator must be
detected once more in order to activate the taught actuator code. In
this way, the activated code is definitively saved!
For ordering suffix -I1, the thus executed allocation of safety sensor and
actuator is irreversible.
For ordering suffix -I2, the "teach-in" procedure for a new actuator can
be repeated an unlimited number of times . When a new actuator is
taught, the code, which was applicable until that moment, becomes
invalid. Subsequent to that, an enabling inhibit will be active for ten
minutes, thus providing for an increased protection against tampering.
The green LED will flash until the expiration of the time of the enabling
inhibit (time of the tampering protection) and the detection of the
new actuator. In case of power failure during the lapse of time, the
10-minutes tampering protection time will restart.