Reer SR ONE Quick start guide

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1
Installation use and maintenance
Safety Relay Module
(Original instructions)

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SAFETY RELAY MODULE SR ONE
SR ONE
SAFETY RELAY MODULE
TABLE OF CONTENTS
OVERVIEW ........................................................................................................................................3
OPERATING MODES DESCRIPTION ...........................................................................................3
AUTOMATIC MODE................................................................................................................................... 4
MANUAL MODE......................................................................................................................................... 5
CONNECTION OF EXTERNAL CONTACTORS K1 AND K2 .................................................................. 6
ELECTRICAL CONNECTIONS........................................................................................................7
INSTRUCTIONS CONCERNING CONNECTION CABLES....................................................................... 7
PINOUT ....................................................................................................................................................... 8
CHECKLIST AFTER INSTALLATION ............................................................................................8
INPUT AND OUTPUT................................................................................................................................. 9
THE RESTART COMMAND ........................................................................................................................................ 9
SYSTEM STATUS OUTPUT......................................................................................................................................... 9
CHARACTERISTICS OF THE OUTPUT CIRCUIT ..................................................................................................... 9
USE OF K1 AND K2 AUXILIARY CONTACT ELEMENTS.....................................................................................10
K1 K2 FEEDBACK INPUT (EDM) .............................................................................................................................10
STATUS INDICATORS / FAULT DIAGNOSIS .......................................................................... 11
NORMAL OPERATION............................................................................................................................11
FAULT DIAGNOSIS...................................................................................................................................11
TECHNICAL DATA ........................................................................................................................ 12
DIMENSIONS............................................................................................................................................ 13
INDICATIONS AND INFORMATION FOR ENVIRONMENTAL PROTECTION ................. 14
WARRANTY.................................................................................................................................... 15
EC DECLARATION OF CONFORMITY...................................................................................... 16
UKCA DECLARATION OF CONFORMITY................................................................................ 17

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SAFETY RELAY MODULE SR ONE
This symbol indicates an important personal safety warning. Failure to comply with the
warning may result in very high risk for exposed personnel.
➔This symbol indicates an important warning.
OVERVIEW
The SR ONE Safety Relay module, connected to an EN 61496 –1/2 certified type 4 safety
light curtain and equipped with two auto-controlled PNP type solid-state outputs, is a
type 4 ESPE (Electro-sensitive Protective Equipment).
The other characteristics indicated above remaining constant, if the light curtain is type 2,
the entire ESPE will be type 2.
The SR ONE main features are the following:
•Inputs for the connection of Safety barrier with fail safe outputs
•Restart manual or automatic selectable
•2 N.O. outputs with guided contact safety relays
•1 System Status PNP output
•1 external contactors feedback input (EDM)
The safety module also guarantees that:
•The output lines are open if the connected device is in OFF status;
•The output lines are enabled only with correct response times;
•In manual mode, maintenance of the RESTART contact closed is not interpreted as
AUTO mode.
For safe use of the SR ONE module, it is essential to read and understand the contents of this
handbook.
Failure to comply with the prescriptions indicated in this handbook may result in very high
risks for the operating personnel of the machine protected.
OPERATING MODES DESCRIPTION
OPERATING MODES SELECTION
TERMINAL 5
TERMINAL 6
OPERATION
0 Vdc
+24 Vdc
Automatic
+24 Vdc
0 Vdc
Manual
0 Vdc
0 Vdc
Non-permissible
conditions
+24 Vdc
+24 Vdc
Table 1

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SAFETY RELAY MODULE SR ONE
AUTOMATIC MODE
In this operating mode, the outputs of the safety module follow the status of the barrier:
•with the protected area free (outputs of the barrier active), the relay outputs
of the unit are active.
•with the protected area occupied (outputs of the barrier de-activated), the
relay outputs of the safety module are de-activated.
Figure 1 –Automatic operation without K1 K2 relays
Use in manual mode (start/restart interlock activated) is mandatory in case the safety device
controls an access protecting a danger zone and once a person has passed through the
opening, he/she may remain in the danger zone without being detected (use as trip device
according to EN 61496). Failure to comply with this rule may result in very serious risks for the
persons exposed.
When the K1-1 and K2-1 N.C. control contacts are not used (or no control is provided) it is
mandatory to connect the terminal 11 (K1 K2 FBK) to terminal 24VDC.

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SAFETY RELAY MODULE SR ONE
MANUAL MODE
In this operating mode, the outputs of the safety relay are activated only if the protected
area is free and after sending the RESTART signal to the unit using the push-button or by
means of a specific command on the RESTART input (terminal 4).
➔Refer to the “THE RESTART COMMAND” at page 9 for a more detailed description of the
command.
➔Once the protected area has been occupied, the output relays are de-activated.
➔The sequence described on “THE RESTART COMMAND” section must be repeated in order to
re-activate the outputs relay.
Check correct functioning of the entire safety system (safety relay + barrier) following each
re-installation. In particular, if the original operating mode was Manual, check that the unit
has been reconfigured in this mode.
Figure 2 –Manual operation without K1 K2 relays
When the K1-1 and K2-1 N.C. control contacts are not used (or no control is provided) it is
mandatory to connect the terminal 11 (K1 K2 FBK) to terminal 24VDC.

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SAFETY RELAY MODULE SR ONE
CONNECTION OF EXTERNAL CONTACTORS K1 AND K2
Control of external contactors K1 K2 can be activated in both operating modes. If this
control must be used, the series of normally closed contacts of the external contactors
must be connected to terminal 11 of the safety relay (figures 3 and 4).
Figure 3
Automatic operation with K1 K2 relays
Figure 4
Manual operation with K1 K2 relays

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SAFETY RELAY MODULE SR ONE
ELECTRICAL CONNECTIONS
Figure 5
SR ONE is provided with terminal blocks for the
electrical connections.
The unit provides 16 terminals.
➔Terminal tightening torque: 5...7lb-in (0,6...0,7 Nm).
Install the SR ONE safety relay in an environment with a protection rating of at least IP54.
The supply voltage must be 24 20% VDC; PELV (in compliance with the standard EN 60204-
1 (Chapter 6.4)).
During the installation of the SR ONE safety relay be sure to avoid short circuits between the
contacts 7 and 8.
Connect the safety relay module when it is not powered.
Do not use the SR ONE to supply external devices.
The same ground connection (0VDC) must be used for all system components.
INSTRUCTIONS CONCERNING CONNECTION CABLES.
➔Wire size range: AWG 12...30, (solid/stranded) (UL).
➔Use 60/75°C copper (Cu) conductor only.
➔We recommend the use of separate power supplies for the safety controller and for other
electrical power equipment (electric motors, inverters, frequency converters) or other
sources of disturbance.
➔Cables used for connections longer than 50m must have a cross-section of at least 1mm2
(AWG16).

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SAFETY RELAY MODULE SR ONE
PINOUT
TERMINAL
NUMBER
SIGNAL
NAME
TYPE OF
SIGNAL
DESCRIPTION
1
24VDC
Power supply 24VDC
2
0VDC
Power supply 0VDC
3
PE
Ground connection
4
RESTART
Input
Restart command
5
MAN
Input
Manual/Automatic Configuration
6
AUTO
Input
7
INPUT1
Input
Safety Input 1
8
INPUT2
Input
Safety Input 2
9
-
-
-
10
-
-
-
11
K1 K2 FBK
Input
Feedback external contactors K1 K2
12
SYS STATUS
Output
Output Status
13
B NO1
Output
Safety relay B, contact 1 (N.O.)
14
B NO2
Output
Safety relay B, contact 2 (N.O.)
15
A NO1
Output
Safety relay A, contact 1 (N.O.)
16
A NO2
Output
Safety relay A, contact 2 (N.O.)
Table 2
CHECKLIST AFTER INSTALLATION
The SR ONE Safety Relay Module is able to detect in real time the faults.
To guarantee the system perfect operation perform the following checks at start up and
at least every year:
OPERATION / CONTROL
COMPLETE
1. Verify the correct fixing of SR ONE to the Omega rail.
❒
2. Verify that all the cables are correctly inserted and the terminal blocks
well screwed.
❒
3. Verify that all the LEDs (indicators) light on correctly.
❒
4. Verify the correct positioning of the barrier connected to SR ONE.
❒
5. Verify that all the external indicators (lamps) work properly.
❒

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SAFETY RELAY MODULE SR ONE
INPUT AND OUTPUT
THE RESTART COMMAND
The RESTART command allows SR ONE to manage Manual operation.
➔The RESTART command must be sent to SR ONE
connecting terminal 4 to the 24VDC, respecting the
behaviour of the timing beside.
➔The contact used for the RESTART command must be able
to switch a voltage of 24VDC and a current of 10mA
(guaranteeing a closing time t1: 5s>t1>100ms).
➔The whole SYSTEM RESET TIME is obtained adding the
reset time of any external contactors K1 K2 to the reset
time of SR ONE.
•This data is particularly important in the case of automatic management of the
RESTART command sending, for example using a PLC.
•In the case of manual activation, a normally open external button can be used,
temporary closing of which generates the RESTART command.
The Restart command must be installed outside the danger area in a position where the
danger area and the entire work area concerned are clearly visible.
It must not be possible to reach the control from inside the danger area.
SYSTEM STATUS OUTPUT
The SYSTEM STATUS output reports exactly the output safety relays status:
•When the output relays are opened, the SYSTEM STATUS reports 0VDC.
•When the output relays are closed, the SYSTEM STATUS reports +24VDC.
CHARACTERISTICS OF THE OUTPUT CIRCUIT
For the output circuit, the safety relay module uses two guided contact safety relays.
These relays are rated by the manufacturer for voltage and current values above those
indicated in the technical data; however, to assure correct insulation and to avoid damage
or premature aging, protect each output line with an appropriate fuse (depending on the
load). Check that load characteristics comply with the indications given in the table below.
Minimum switching voltage
18 VDC
Minimum switching current
20 mA
Maximum switching voltage
250 VAC
Maximum switching current
6A(AC) / 6A(DC)

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SAFETY RELAY MODULE SR ONE
USE OF K1 AND K2 AUXILIARY CONTACT ELEMENTS
For loads with higher voltage and current characteristics than those indicated in the table
above, use of auxiliary external relays or contactors suitable for the load to be controlled
is recommended.
•The K1 and K2 auxiliary contactors or relays must be of the guided contact
safety type.
•Referring to the table below, pay particular attention to the configuration of the
control contacts on terminal 11 and that of the contacts of use.
(See K1 K2 FEEDBACK input (EDM), page 10).
Relay K1
Relay K2
Control contacts
K1-1 normally closed
K2-1 normally closed
Use contacts
K1-2 normally open
K2-2 normally open
•Control contacts K1-1 and K2-1 (terminal 11) must be able to switch a current of
20mA and a voltage of 24VDC.
•To increase the electrical life of internal relays A and B, it is advisable to use
anti-disturbance devices which must be connected across the coils of K1 and K2.
K1 K2 FEEDBACK INPUT (EDM)
Using the K1 and K2 auxiliary safety contactors with guided contact safety type, it is
necessary to connect the +24VDC to the K1 K2 FBK through the series of the K1-1 and
K2-1 N.C. control contacts.
➔The control of the correct switching of K1 and K2 is performed with a delay of 300ms.
If the application requires it, the response time of the external contactors must be verified
by an additional device.
When the K1-1 and K2-1 N.C. control contacts are not used (or no control is provided) it is
mandatory to connect the terminal 11 (K1 K2 FEEDBACK) to terminal 24VDC.

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SAFETY RELAY MODULE SR ONE
STATUS INDICATORS / FAULT DIAGNOSIS
NORMAL OPERATION
LED
COLOR
STATUS
CONDITION
IN
Green
ON
Barrier free
OFF
Barrier intercepted
FAIL
Red
ON
Fault detected *
OFF
Correct operation
GUARD
BREAK
Green/
Red/
Yellow
RED
Output relays opened
RED
blinking
The number of blinkings shows the
kind of FAIL (only with FAIL is ON) *
GREEN
Output relays closed
YELLOW
Barrier free - Output relays opened
(module waiting for RESTART only in manual mode)
* REFER TO THE "FAULT DIAGNOSIS" SECTION TO HAVE A DETAILED EXPLANATION
OF THE POSSIBLE FAULT
Table 3
FAULT DIAGNOSIS
LED
GUARD/BREAK
RED/GREEN (pulses red LED)
MEANING
IN
GREEN
FAIL
RED
OFF
ON
(2 pulses)
▪Internal fault
OFF
ON
(3 pulses)
▪Internal relays fault
OFF
ON
(4 pulses)
▪K1 K2 external relays fault
OFF
ON
(5 pulses)
▪User configuration failure
▪INPUT1/2 BARR consistency
check failed (<20ms)
Check connected barrier
outputs
OFF
ON
(6 pulses)
▪User configuration changed
without system restart:
▪Switch off and restart the
module to solve the
problem.
▪At the switch on verify the
new user configuration.
OFF
ON
(7 pulses)
▪Possible overload or
▪SYSTEM STATUS connection
error
Table 4
If it is not possible to clearly identify the malfunction and to remedy it, stop the machine and
contact the ReeR's After Sales Department.

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SAFETY RELAY MODULE SR ONE
TECHNICAL DATA
SAFETY DATA
VALUE
STANDARD
Safety level
Type 4
EN 61496-1: 2020
SIL 3
EN 61508:2010
SILCL 3
EN 62061:2005 / A2:2015
Cat.4
EN ISO 13849-1: 2015
Device lifetime
20 years
EN ISO 13849-1: 2015
Certifications
cULus, TÜV
Load
Number of commutations
PFHd *
DCavg #
MTTFd #
(years)
PL #
CCF #
2A@230Vac
1 every 30s
1,73E-07
99,00%
25,26
d
80%
1 every min
8,87E-08
99,00%
47,39
e
80%
1 every hour
6,22E-09
98,97%
341,25
e
80%
1 every day
4,91E-09
98,97%
378,55
e
80%
0,5A@24VDC
1 every 30s
3,41E-07
99,00%
13,06
d
80%
1 every min
1,73E-07
99,00%
25,26
d
80%
1 every hour
7,61E-09
98,98%
308,79
e
80%
1 every day
4,99E-09
98,97%
375,81
e
80%
* EN 61508:2010, EN 62061:2005/A2:2015; # EN ISO 13849-1:2015
ELECTRICAL PARAMETERS
VALUE
Power supply
24 20% VDC; PELV
Rated impulse between PELV and relay contacts
6 kV
Power requirement
3W max
Protection
Overload protected STATUS output
INPUT DATA
VALUE
Number of connectable barriers
1 (with 2 PNP OSSDs)
Inputs number/data (type 3)
5 / according to standard EN61131-2, type 3
Input current
Typical 4.3mA
Input voltage
0VDC…30VDC
Inputs number/data (type 2)
1 / according to standard EN61131-2, type 2
Input current
Typical 10mA
Number of EDM input
1 N.C. contact
EDM Response time
300ms
OUTPUT DATA
VALUE
System Status Output number/ value
1 / 100mA@24VDC
Number of safety output
2 N.O. contacts
Type
Relays with forced guided contacts
Max switching voltage
250VAC, 125 VDC, Overvoltage Category III
Max switching current
6A (AC), 6A (DC)
Max switching power
1500VA, 180W (85W if load voltage >30VDC)
Max Response time
20ms
Mechanical service life
10 x 10E6
Electrical service life AC1 at 360 switchings/h
> 10E5
CONNECTIONS / OPERATION
Operating modes
Automatic, Monitored or Manual selectable
Connections
16 Terminal block with protection against reversal of polarity
Status indicators
LED: Input –Output Status –Fail
Operating modes
Manual or Automatic, selectable from terminal block
Max. length of connections
100m
Operating temperature
-30...55°C
Max surrounding air temperature
55°C
Storage temperature
-30...70°C
Relative humidity
10%...95%
Maximum operating altitude
2000m
Vibration resistance (CEI EN 60068-2-6:2009)
+/- 1.5 mm 9...200 Hz
Bump resistance (CEI EN 60068-2-27:2012)
15 g (6 ms half-sine)

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SAFETY RELAY MODULE SR ONE
ENCLOSURE DATA
VALUE
Description
Electronic housing 16 pole, with locking latch mounting
Enclosure protection rating
IP 20
Terminal block protection rating
IP 2X
Fastening
Fast attachment to rail according to CEI EN 60715
Dimensions (h x w x d)
99mm x 22,5mm x 113,5mm
Weight
150g
DIMENSIONS
Figure 6
(All dimensions are expressed in mm)

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SAFETY RELAY MODULE SR ONE
INDICATIONS AND INFORMATION FOR ENVIRONMENTAL PROTECTION
Dispose of the product in an eco-compatible manner and in accordance with national legislation.
For Countries in the European Union:
Pursuant to the Directive no. 2012/19/EU on waste electrical and electronic equipment
(WEEE).
The crossed out wheelie-bin symbol on the equipment or its packaging means that when the
product reaches the end of its useful life it must be collected separately from other waste.
Proper separate collection of the discarded equipment for later environment-friendly recycling,
processing and disposal, helps to avoid any negative impact on the environment and health and
encourages re-use and recycling of the materials the equipment is made of.
In each individual Member State of the European Union this product is required to be disposed of
in accordance with Directive 2012/19/EU as implemented in the Member State where the product
is disposed of.
For further information please contact ReeR or your local dealer.

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SAFETY RELAY MODULE SR ONE
WARRANTY
ReeR warrants that each SR ONE unit in new ex-factory condition, in conditions of normal
use, is free of defects in the materials and of manufacturing defects for a period of 12
(twelve) months.
In this period, ReeR undertakes to eliminate any faults in the product through repair or
replacement of the faulty parts, completely free of charge as regards material and labour.
However, ReeR reserves the right to replace the entire faulty appliance with another
equivalent appliance or with the same characteristics instead of repairing this.
Validity of this warranty is regulated by the following conditions:
•The user must inform ReeR of the fault within twelve months from the date of
delivery of the product.
•The appliance and its components must be in the conditions in which they were
delivered by ReeR.
•The serial numbers must be clearly legible.
•The fault or defect has not been caused directly or indirectly by:
–Improper use;
–Non-compliance with instructions for use;
–Carelessness, inexperience, incorrect maintenance;
–Repairs, modifications, adaptations not carried out by ReeR personnel,
tampering, etc.;
–Accidents or impacts (also due to transportation or causes of force
majeure);
–Other causes not to be ascribed to ReeR.
Repairs will be carried out at the ReeR laboratories to which the material must be
delivered or dispatched: transport risks and the risks of any damage or loss of the material
during shipment are the responsibility of the user.
All products and components replaced become the property of ReeR.
ReeR does not recognize any other warranties or rights except for those specifically
described above; therefore, no claims for damages may be submitted for expenses,
interruption of business or other factors or circumstances in any way related to failure of
the product or of one of its parts.
Precise, complete compliance with all the rules, instructions and prohibitions indicated in this
handbook is an essential requirement for correct functioning of the device.
ReeR s.p.a. therefore declines any responsibility for all and anything resulting from failure to
comply, even partially, with such indications.
Characteristics subject to change without notice. • Total or partial reproduction is forbidden without the prior authorization of
ReeR.

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SAFETY RELAY MODULE SR ONE
EC DECLARATION OF CONFORMITY

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SAFETY RELAY MODULE SR ONE
UKCA DECLARATION OF CONFORMITY
ReeR declares that SR ONE Safety Relay module complies with following UK legislation:
•S.I. 2008 No. 1597 - The Supply of Machinery (Safety) Regulations
•S.I. 2016 No. 1101 - Electrical Equipment (Safety) Regulations
•S.I. 2016 No. 1091 - Electromagnetic Compatibility Regulations
•S.I. 2012 No. 3032 - The Restriction of the Use of Certain Hazardous Substances in
Electrical and Electronic Equipment Regulations
➔Please refer to the link https://www.reersafety.com/certifications to download the complete
UKCA Declaration of Conformity.

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SAFETY RELAY MODULE SR ONE
Via Carcano, 32
10153 Torino, Italy
T [phone]
F [phone]
www.reersafety.com
[email protected]
All REER product manuals are available at URL https://www.reersafety.com/it/en/download/manuals