Omron SR104P Operation manual

1
• Up to PL e, SILCL 3, category 4
Correct Use
The SR104P 2-hand safety relay is an extremely com-
pact, universal safety two-hand control unit. It
complies with EN574, Typ III C, and is intended for use
in safety circuits that are designed in accordance with
EN 60204-1, e.g. on presses, punches and bending
tools. Due to the internal error monitoring, the 2-hand
safety relay can be used, despite very compact dimen-
sions, for all applications up to the highest safety cate-
gory 4 and PL e according to EN ISO 13849-1, SILCL 3
according to EN 62061 or Typ III C according to EN 574.
Features
• 2 safe, redundant relay outputs
• Cyclical monitoring of the output contacts
• Feedback loop for monitoring downstream contactors or
expansion modules
• Short circuit and earth fault monitoring
• Extrem compact housing
Function
The OMRON STI 2-hand safety relay SR104P is suitable
for setting up and monitoring two-hand circuits and is used
to protect the operators. Dangerous work steps can only be
triggered when both two-hand buttons connected are ope-
rated simultaneously, i.e. within 0.5s.
It is to be ensured a single fault or a malfunction does not
result in the loss of the safety function and every fault is
detected by the cyclic self-monitoring at the latest prior to
the next actuation.
When the operating voltage is applied to A1-A2 and the
feedback loop X1-X2 is closed, the SR104P is ready for
use. To be able to initiate a switching operation, the output
relays must be de-energized. The output relays only switch
to the energized position when the two-hand buttons T1
and T2 are operated simultaneously, i.e. within 0.5s.
Fig. 1 Block diagram SR104P
• It is not allowed to open the device, tamper with the device or
bypass the safety devices.
• All relevant sefety regulations and standards are to be observed.
• The overall concept for the control system in which the device
is integrated is to be validated.
• Failure to observe the safety regulations can result in death,
serious injury and serious damage.
Installation
As per DIN EN 60204-1, the device is intended for installa-
tion in control cabinets with a minimum degree of protection
of IP54. It is mounted on a 35-mm DIN rail according to
DIN EN 60715 TH35.
Safety Precauti-
ons
• Installation an setup are only allowed to be undertaken
by trained personell.
• The electrical connection is only allowed to be made with the
device and wiring isolated.
• The wiring must comply with the instructions in this user
information, otherwise there is a risk that the safety function
will be lost.
• As per EN 60204-1 the device is intended for installation in
control cabinets with a minimum degree of protection of IP54.
Fig. 2Installation/removal
Electrical Connec-
tion
• When the 24V version is used, a control transformer
according to EN 61558-2-6 or a power supply unit with
electrical isolation from the mains must be connected.
• External fusing of the safety contacts (4A slow-blow or
6A quick-action or 10A gG) must be provided.
• A maximum length of the control lines of 1000 meters
with a line cross section of 0.75 mm
2
must not be excee-
ded.
• The line cross section must not exceed 2.5 mm
2
.
• If the device does not function after commissioning, it
must be returned to the manufacturer unopened. Ope-
ning the device will void the warranty.
Fig. 3 Connections
A1: Power supply
A2. Power supply
S11: Control line T1
S12: Control line T1
S13: Control line T1
S21: Control line T2
S22: Control line T2
S23: Control line T2
X1; X2: Feedback loop
13-14: Safety contact 1
23-24: Safety contact 2
(not dor plug-in terminals)
The output relays are not switched if:
• only one two-hand button is actuated or the time between the actuation of the 2 two-hand buttons is greater than 0.5s,
• the feedback loop is open (fault in the external contactor),
• another error (short circuit, cable break, error in the switching device) has occurred.
When T1 and/or T2 are/is released, the output relays opens immediately. In order to trigger a new operation, both two-hand
buttons must first be released and the feedback loop must be closed.
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SR104P
User Information for SR104P
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SR104P
The arrangement of the two-hand buttons must be designed in accordance with the standard EN 574 such that accidental
actuation or simple bypassing of the safety function is excluded.
The SR104P unit is provided for the connection of 2-hand push-buttons, with one normally open or one normally colsed
contact.
Figur 1 shows the wiring of the SR104P with a 2-hand push-buttons:
Applications
Fig. 1:
Wiring of the SR104P with a 2-hand push-
buttons
Fig. 2: Feedback loop
Contactors connected to the SR104P or the basic devices are
monitored via the feedback loop of the basic device. K A and
K
B are the positively driven contacts of the connected contac-
tor or expansion module.
Feedback loop
Note: The items listed under “Electrical connection” must be observed during commissioning.
Commissioning
Procedure
1. Wiring SR104P:
Wire the SR104P with the OMRON STI basic device ac-
cording to your application (see Fig. 1).
2. Wiring feedback loop:
Wire the feedback loop as shown in Fig. 2.
3. Wiring power supply:
Connect the power supply to terminals A1 and A2.
Warning: Wiring only in de-energized state.
4. Starting the device:
Switch the operating voltage on.
5. Switch to working condition:
Press the two buttons T1 and T2 simultaneously, or within
0.5 seconds.
The positive-guided relay switches.
6. Switch into hibernation:
Release the two buttons T1 and T2.
The positive-guided relay swiches off.
Jumper X1-X2:
See description
X1 X2
Installation
Avoiding unintentional actuation or bypassing of the safety device
The arrangement of the two-hand buttons must be designed in accordance with the standard EN 574 such that accidental
actuation or simple bypassing of the safety function is excluded.
The operation of both buttons using one hand must be prevented by an adequate distance (at least 260mm) or by a separa-
ting wall. Actuation using forearm, elbow, knee, hip or other parts of the body can be effectively prevented by a further inc-
rease in the distance between the two buttons, adequate distance from the floor and/or covers and/or separating walls.
Distance from the two-hand buttons to the danger area
It is necessary to maintain a minimum distance between the buttons for the two-hand circuit and the danger area on the
machine or plant so that, after the release of one or both buttons, the machine or plant can only be reached once the dange-
rous movement has been interrupted or completed. According to the standard EN 999, the distance is calculated with the
following equation:
S = (K· T) + C
S: Minimum distance from the nearest pushbutton (two-hand button) to the danger area.
K: Parameter in mm/s, derived from data on the approach speeds of the body or parts of the body, for two-hand circuits
1600mm/s.
T: The overtravel of the overall system in seconds, that is the time from releasing the two-hand button to the end of the dan
gerous movement.
C: Additional distance in mm that based on entry into the danger area prior to the triggering of the safety device. For twohand
circuits this is 250mm, this distance can also be set to 0mm given an adequate cover on the buttons, however then S
must be at least 100mm.
Example
The overtravel time for the entire system is 90ms. Then the above equation gives for the minimum distance:
S = (1600 mm/s · 0.09 s) + 250 mm
S = 144 mm + 250 mm = 394 mm
If a suitable cover is used, S can be reduced to 144mm (see above).
SR104P
User Information for SR104P

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Maintenance
What to Do in
Case of a Fault?
Once per month, the device must be checked for proper
function and for signs of tampering and bypassing of the
safety function (to do this, check the wiring of the device
and activate the emergency stop function. Check the delay
time).
The device is otherwise maintenance free, provided that it
was installed properly.
Note:
Additional data can be requested from the manufacturer for
applications that deviate from these conditions.
Safety
Characteristics
According to
EN ISO 13849-1
The device is certified according to EN ISO 13849-1 up to a
Performance Level of PL e.
Technical
Data
16026NE,1-94831OSINE,1-40206NE,475NEsdradnatsehtotsdnopserroC
Operating voltage SR104P01 SR104P02
V511CAV42CD/CA
zH06-05:CAycneuqerfylppusdetaR
%01-/+noitaivedelbissimreP
Power consumption DC 24V
W5.1.ac
Control voltage at S12-S12 and at S22-S23 DC 24V
Am04x2.ac)sehctiwshtob(tnerruclortnoC
Release time for the safety relays after release of a button < 20ms
Response delay after actuation of the buttons < 20ms
s5.0<emitnoitazinorcnyS
stcatnocON2noitarugifnoctcatnocytefaS
V052CAegatlovgnihctiws.xaM
,daolcimhorofA8,AV002,V052:CAyticapacgnikaerbtcatnocytefaS
51-CArofA3,V032
;daolcimhorofA8,W291,V42:CD
31-CDrofA3,V42
A21:stcatnocllahguorhttnerruclatot.xaM
Am02,V42daoltcatnocmuminiM
GgA01ronoitca-kciuqA8rowolb-wolsA6sesuftcatnoC.niM
mm5.2-41.0noitcesssorcenil.xaM
2
mm57.0htiwm0001enillortnocfohtgnel.xaM
2
ONSgAlairetamtcatnoC 2
01x1.xorppa.hcemefilecivrestcatnoC
7
, electr. 1 x 10
5
operating cycles
)stcatnoc/egatlovlortnoc(Vk5.2egatlovtseT
Rated impulse withstand voltage, leakage path/air gap 4kV (DIN VDE 0110-1)
V052egatlovnoitalusnidetaR
02PInoitcetorpfoeergeD
)1-0110EDVNID(2noitanimatnocfoeergeD
)1-0110EDVNID(3yrogetacegatlovrevO
C°06+otC°51-:V42CDegnarerutarepmeT
C°04+otC°51-:V511/032CA
g032.acthgieW
53HT51706NEotgnidroccaliarNIDgnitnuoM
Safety characteristics according to EN ISO 13849-1 for all variants of SR104P
Load (DC13; 24V) <= 0,1A <= 1A <= 3A
T10d [years] 20 20 20
Category: 4 4 4
PL e e e
PFHd [1/h]: 1,2E-08 1,2E-08 1,2E-08
nop [cycle / year] <= 400.000 <= 100.000 <= 22.500
What to Do in
Case of a Fault?
If the fault still exists, perform the steps listed under
“Commissioning Procedure”.
If these steps do not remedy the fault either, return the
device to the manufacturer for examination.
Opening the device is impermissible and will void the
warranty.
Device does not switch on:
• Check whether the 2-hand button of correct function.
• Check whether the wiring.
• Check the supply voltage on A1 and A2
• Is the feedback loop closed?
SR104P
User Information for SR104P

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Dimension
114
99
22,5
SR104P
User Information for SR104P
©2014 Omron Scientific Technologies, Inc. All rights reserved.
Subject to technical modifications.
Manual P/N 99930-0010 Rev.C
Drawing Number: 092364-10-06/14
OMRON SCIENTIFIC TECHNOLOGIES, INC.
6550 Dumbarton Circle, Fremont CA 94555-3605 USA
U.S.A: 800.556.6766
Canada: 866.986.6766
Mexico and South America: 847.843.7900
All other countries: 510.608.3400
www.sti.com/info
Safety,
Technology
& Innovation
EC Declaration of Conformity
The manufacturer named below herewith declares that the product fulfills
the provisions of the directive(s) listed below and that the related standards
have been applied.
OMRON Scientific Technologies Inc.
6550 Dumbarton Circle
Fremont, CA 94555, U.S.A.
Directives applied:
EMC directive 2004/108/EC
Machinery directive 2006/42/EC
Standards applied:
EN ISO 13849-1:2008 + AC:2009
EN 62061:2005
Fremont, May 2014
Marty Krikorian
Director, Quality Control
The signed EC Declaration of Conformity is included with the product.
RoHS directive 2002/95/EC
(Authorized Signer of Declarations of Conformity)
OMRON Scientific Technologies, Inc.
Representative in EU:J.H.P.W.Vogelaar
European Quality & Environment Operations Manager
Omron Europe B.V
Zilverenbert 2, 5234 GM, ‘s-Hertogenbosch
The Netherlands
Certificates:01/205/5083/11
TÜV: NB 0035
TÜV Rheinland Industrie Service GmbH - TÜV Rheinland Group
AM Grauen Stein, 51105 Köln, Germany
EN ISO 13849-2:2008
EN 60947-5-1:2004 + A1:2009
EN 574:1996 + A1:2008 (only for SR104P0X)