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O P E R A T I N G I N S T R U C T I O N S
The UE45-3S1 safety relay is used only for volt-free safety
sensors, e.g.:
• emergency stop pushbuttons (EN ISO 13 850): single-
UE45-3S1
channel, dual-channel
• safety interlocks (EN 1088): single-channel, dual-
channel
Safety relay
2.3
Correct use
The UE45-3S1 safety relay must be used only as defined in
en
section 2.2 "Applications of the device".
SICK AG • Erwin-Sick-Straße 1
It must be used only by qualified safety personnel and only
D-79183 Waldkirch • www.sick.com
on the machine where it has been installed and initialised
8009662/10DH/2018-08-02 • REIPA/XX
by qualified safety personnel in accordance with the opera-
Printed in Germany (2018-08) • All rights reserved
ting instructions. If the device is used for any other purposes
Subject to change without notice
or modified in any way — also during mounting and instal-
lation — any warranty claim against SICK AG shall become
void.
2.4
General safety notes and protective
measures
Pay attention to the safety notes and protective
measures!
Please observe the following items in order to en-
sure the correct use of the UE45-3S1 safety relay.
1
Scope
• During the mounting, installation and usage of
the safety relay, observe the standards and
These operating instructions are only applicable to the
directives applicable in your country.
UE45-3S1 safety relays with the following entry on the
type label in the field Operating Instructions: 8009662
• The national/international rules and regulations
apply to the installation, commissioning, use and
You will find the device's date of manufacture on the
periodic technical inspection of the safety relay,
type label in the field Date Code in the format yywwxxxx
in particular:
(yy = year, ww = calender week, xxxx = serial number).
– Machinery Directive
These operating instructions are original operating
instructions.
– Work Equipment Directive
– EMC directive
2
On safety
– the work safety regulations and safety rules
This chapter deals with your own safety and the safety
• Manufacturers and operators of the machine on
of the equipment operators.
which a safety relay is used are responsible for
= Please read this chapter carefully before working
obtaining and observing all applicable safety
with the UE45-3S1 or with the machine protected by
regulations and rules.
the UE45-3S1.
• The tests must be carried out by qualified safety
2.1
Qualified safety personnel
personnel or specially qualified and authorised
personnel and must be recorded and documen-
The UE45-3S1 safety relay must only be installed,
ted to ensure that the tests can be reproduced
commissioned and serviced by qualified safety
and retraced at any time by third parties.
personnel.
• The operating instructions must be made avail-
Qualified safety personnel are defined as persons
able to the operator of the machine where the
who ...
UE45-3S1 is used.
• have undergone the appropriate technical training
• The machine operator is to be instructed in the
and
use of the device by qualified safety personnel
• have been instructed by the responsible machine
and must be instructed to read the operating
operator in the operation of the machine and the
instructions.
current valid safety guidelines and
• have access to the operating instructions of the
UE45-3S1 safety relay and have read and familia-
rised themselves with them.
2.2
Applications of the device
The UE45-3S1 safety relay can be used:
• in accordance with EN ISO 13 849-1 up to PL e and
category 4
• in accordance with EN 62 061 up to SILCL3
The actual category achieved depends on the external
circuit, the design of the wiring, the selection of the
control switches and their placement on the machine.
The UE45-3S1 safety relay has been evaluated to
UL 508.
The related actuators on the machine or system can be
safely shut down using the safety relay's output signal
switching contacts.
3
Product description
5
3.1
Structure and operating principle of the
Switch the entire machine/system off line!
device
The system can start up unexpectedly while you are
connecting the devices.
The inputs on the UE45-3S1 safety relays are prepared for
the connection of the safety sensors listed in section 2.2
"Applications of the device". Two separate inputs circuits
• The voltage supply must satisfy the regulations for extra-
control the internal relays. The enable current paths as well
low voltages with safe isolation (SELV, PELV) for over-
as the delayed reactivation current path are designed as
voltage category III as per EN 60 664 and EN 50 178.
safe outputs.
• For installation in environments with overvoltage catego-
ry III, external protection elements must be used. The re-
3.2
Device functions
quired level of protection as per EN 62 305-1 can be
Opening of the input circuits results in immediate opening
achieved using an external snubber circuit. The protec-
of two enable current paths and delayed opening of the
tion elements (SPD – surge protective devices) must
third current path. The delay can be continuously adjusted
comply with the requirements as per EN 61 643-11.
within the adjustment ranges on the safety relay.
Note:
Delayed reactivation current path: This current path opens
The basic insulation of the components connected to the
with an adjustable delay of 0.15 ... 3 s or 1.5 ... 30 s in
safety relay must match the highest voltage connected to
relation to the two enable current paths.
the safety relay.
Manual reset: Closing the input circuits does not result in
All circuits (and if necessary other EDM) must then also be
immediate closing of the three current paths. This action is
designed for the highest voltage level.
only performed after the actuation of the the reset button.
• All connections, wiring and cable runs must comply with
The reset takes place with the falling or rising edge depen-
the required category as per EN ISO 13 849-1 and the
ding on the circuit.
required SIL claim level as per EN 62 061 (e.g. cables
Automatic reset: Closing the input circuits results in the
laid with protection, individually sheathed cable with
immediate closing of the three current paths. This function
screen etc.).
is to be realised with a corresponding circuit.
• To protect the contact outputs on the UE45-3S1 and to
External device monitoring: The EDM function monitors the
increase the service life, the loads connected must be
contact elements activated by the enable current paths
equipped with, e.g., varistors and RC circuits. Please also
(e.g. motor contactors). By wiring the signalling contacts on
note that the selection of the arc suppression can in-
the switching elements in series with the reset input, the
crease the total response time of the safety function.
enable current paths only close if all switching elements are
• The output signal switching devices and the external
open. This control is only effective on reset.
device monitoring (EDM) must be wired in the control
Cross circuit detection: A cross-circuit is detected on the
cabinet.
dual-channel connection of the input circuits, if these are
• To prevent the welding of the contacts on the built-in re-
connected to different polarities.
lay, an overcurrent protection device with max. 6 A short-
circuit protection (duty class gG) is to be integrated into
In order to attain SILCL3/PL e, connect the
the enable current paths (see Fig. 1, fuse F2/F3/F4).
external device monitoring!
In order to reach SILCL3/PL e, an external diagnosis
5.1
with DC ≥ 99 % must be applied (i.e. the external
device monitoring must be connected).
Terminal
Please also read the notes in chapter 11 "Applica-
A1
tion examples".
A2
S11
3.3
Status indicators
S33
Display
Meaning
S21
SUPPLY Ν Green
Supply voltage active
S34
K1/K2 Ν Green
Relay K1 and K2 active
S35
K3/K4 Ν Green
Delayed reactivation relay K3 and
S12
K4 active
S31
4
Mounting
S22
13–14
Mounting only with enclosure rating IP54 or
23–24
better!
37–38
The safety relay is only allowed to be mounted in the
control cabinet. The control cabinet must at least
5.2
comply with enclosure rating IP54.
Single-channel operation
= Mounting in accordance with EN 50 274.
The safety sensor is connected between S11 and S12. Wire
= The modules are located in a 22.5 mm wide modular
jumpers are to be connected between S12 and S31 as well
system for 35 mm mounting rails as per EN 60 715.
as between S21 and S22.
Dual-channel operation with cross-circuit detection
The two volt-free switching elements on the safety sensor
are to be connected between S12 and S31 as well as
between S21 and S22. A wire jumper is to be connected
between S11 and S31.
Electrical installation
5.3
Reset
Manual reset
The reset button (N/O contact) is to be wired to the termi-
nals S33 and S34. The reset button is to be installed out-
side the hazardous area such that it cannot be pressed from
inside the hazardous area. When operating the reset button,
the operator must have full visual command of the hazard-
ous area.
Automatic reset
A wire jumper is to be connected between S33 and S35.
5.4
External device monitoring
The external device monitoring for the actuators integrated
is only effective on reset. The connection of the N/C con-
tacts for the contact elements operated in series with the
reset circuit provides static external device monitoring.
6
Commissioning and regular
tests
Commissioning requires a thorough check by
qualified safety personnel!
Before you operate a system protected by the safety
relay for the first time, make sure that the system is
first checked and released by qualified safety
personnel.
= Please read the notes in chapter 2 "On safety".
= Observe the relevant laws and national
regulations.
Check the hazardous area!
= Ensure there is nobody in the hazardous area
before commissioning.
= Secure the hazardous area against entry.
Regular inspection of the protective devices by qualified
safety personnel
Pin assignments
= Check the system following the inspection intervals
Description
specified in the national rules and regulations.
– Each safety application must be checked at an interval
Voltage supply (+24 V DC)
specified by you.
Voltage supply (0 V DC)
– The effectiveness of the protective devices must be
+24 V DC (control voltage)
checked daily by a specialist or by authorised per-
Supply for reset
sonnel.
0 V DC (control voltage)
= If changes have been made to the machine or the pro-
tective device, or the safety relay has been changed or
Reset (falling edge)
repaired, you must again thoroughly check the entire
Reset (rising edge)
safety application.
+ Input circuit 1 (K1)
7
In the event of faults or errors
+ Input circuit 2 (K2)
– Input circuit 2 (K2)
Cease operation if the cause of the malfunction
Enable current path 1
has not been clearly identified!
= Stop the machine if you cannot clearly identify or
Enable current path 2
allocate the error and if you cannot safely rectify
Delayed reactivation current path
the malfunction.
Operating modes
Complete function test after rectification of
fault!
= After rectifying a fault, perform a complete
function test.
8
Disposal
Always dispose of serviceableness devices in
compliance with local/national rules and
regulations with respect to waste disposal.
9
Ordering information
Part (24 V DC design)
Part number
(type code)
UE45-3S1 (0.15 ... 3 s)
6024911
with screw type terminals
(UE45-3S12D33)
UE45-3S1 (0.15 ... 3 s)
6024912
with removable terminals
(UE45-3S13D33)
UE45-3S1 (1.5 ... 30 s)
6024913
with screw type terminals
(UE45-3S12D330)
UE45-3S1 (1.5 ... 30 s)
6024914
with removable terminals
(UE45-3S13D330)
10
Compliance with EU
directives
UE45-3S1, Safety relays
SICK AG, Erwin-Sick-Straße 1, D-79183 Waldkirch
You can call up the EU declaration of conformity and
the current operating instructions by entering the part
number in the search field at www.sick.com (part
number: see the type label entry in the "Ident. no."
field).
Direct link to EU declaration of conformity:
www.sick.com/9068882
The undersigned, representing the manufacturer, here-
with declares that the product is in conformity with the
provisions of the following EU directive(s) (including all
applicable amendments), and that the standards
and/or technical specifications stated in the EU decla-
ration of conformity have been used as a basis for this.
• MACHINERY DIRECTIVE 2006/42/EC
• EMC DIRECTIVE 2014/30/EU
• ROHS DIRECTIVE 2011/65/EU
Waldkirch: 2018-07-10
ppa. Walter Reithofer
ppa. Birgit Knobloch
Vice President R&D
Vice President Operations
(GBC Industrial Safety)
(GBC Industrial Safety)
authorized for technical
documentation
Notified body: No. 0340, DGUV Test, Prüf- und Zerti-
fizierungsstelle Elektrotechnik, Gustav-Heinemann-
Ufer 130, 50968 Köln
EC type-examination: ET 17072
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