Wieland SNE 4012K Mode D'emploi page 4

Operating manual
(Translation of the original instructions)
SNE 4012K
SNE 4024K
SA FE TY REG ULA TIO NS
 Installation, commissioning, modification and retrofitting
may only be performed by a qualified electrician.
 Disconnect the device/system from the power supply
before starting work. If installation or system errors occur,
mains voltage may be present at the control circuit in the
case of non-electrically isolated devices.
 When installing the equipment, please observe the electrical
engineering and professional trade association safety regulations.
 Opening the housing or other manipulation voids any
warranty.
 In the case of improper use or any use other than for the
intended purpose, the device must no longer be used and
any warranty claims shall be void. Exposure to the following
(amongst other things) is not permitted: significant me-
chanical strain on the device (e.g. if the device is dropped);
voltages, currents, temperatures, humidity levels outside
the specifications.
 Always check all safety functions in accordance with the
applicable regulations during initial commissioning of your
machine / system and observe the specified inspection
cycles for safety devices.
Observe standards
 The application-specific standards must be observed when
installing and operating the device.
 The device must be installed in accordance with
EN 60204-1 and IEC 60364-4-44.
Prior to installation/assembly/disassembly
Take the following safety precautions before starting installa-
tion/assembly or disassembly work:
1. Disconnect the device/system from the power supply
before starting work.
2. Secure the machine / system against being switched on
again.
3. Confirm that no voltage is present.
4. Earth the phases and short-circuit them.
5. Cover and shield neighbouring live parts.
6. The devices must be installed in a switch cabinet with a
protection class of at least IP 54.
Limited contact protection
 Protection class according to EN 60529, housings/terminals:
IP 40/IP 20.
 Finger-proof according to EN 50274.
Doc. # BA000860 – 10/2012 (Rev. B)
AT T E N TI O N
SNE 4012K / 4024K
Wieland Electric GmbH
Brennerstrasse 10-14
D-96052 Bamberg, Germany
Tel. +49 (0) 951 / 9324 -0
Fax +49 (0) 951 / 9324 -198
www.wieland-electric.com
Expansion device for basic devices in safety applications
 PL e / category 4 according to EN ISO 13849-1
 SILCL 3 according to EN 62061
 Stop category 0 according to EN 60204-1
 Safe disconnection according to EN 50178
 2 or 2 x 2 enabling current paths (normally open)
 1 or 2 x 1 signalling current path (normally closed)
Device versions
SNE 4012K-A with screw terminals, plug-in, 1 relay group
SNE 4012K-C with spring-loaded terminals, plug-in, 1 relay group
SNE 4024K-A with screw terminals, plug-in, 2 relay groups
SNE 4024K-C with spring-loaded terminals, plug-in, 2 relay groups
Front view
K1, K2 LED green, status indicator for relay groups K1 and K2
1 Proper use
The SNE 4012K / 4024K can be used as an expansion device for
all basic devices that are part of the safety devices of a machine
and used to protect persons, material and the machine.
2 Function
The SNE 4012K / 4024K is an expansion device with safe
separation between the control circuit / signalling current path
and the enabling current path. The device is housed in a 22.5
mm housing.
 The SNE4012K has a relay group with two enabling and one
signalling current path.
 The SNE4024K has two relay groups, each with two enabling
and one signalling current path.
The signalling current path Y1/Y2 or Y3/Y4 must be wired to the
reset or return circuit of the basic device.
Basic function: Following the connection of control voltage to
the terminals B1/A2 or B2/A2, the enabling current paths 13/14
and 23/24 or 33/34 and 43/44 are closed. The signalling current
path Y1/Y2 or Y3/Y4 is interrupted. When disconnecting the
control voltage, the enabling current paths are opened, the
signalling current path is closed.
Notes
 The achieved stop category and performance level (PL) in
accordance with EN ISO 13849-1 or the SILCL in accordance
with DIN EN 62061 of the expansion device always depends
on the relevant data for the basic device (e.g. can the expan-
sion device achieve the maximum performance level (PL) of
the basic device?).
 The enabling paths must be protected according to the
technical data specifications.
 The device must be checked to ensure it is in perfect working
order before commissioning, after replacement of modules
and/or in the case of changes to an installation that has al-
ready undergone acceptance.
 External loads must be equipped with a protection circuit
suitable for the load (e.g. RC elements, varistors, suppressors
...) in order to reduce electromagnetic interference and in-
crease the service life of the output switching elements.
 The specified performance level will only be achieved if,
depending upon the prevailing device load (see EN ISO
13849-1, Table C.1) and the application case, an average
number of switching cycles per year is not exceeded (see EN
ISO 13849-1, C.4.2 and Table K.1). Assuming that the B10d
value for the maximum load is 400,000, this results in, for
example, a maximum cycle number of 400,000 / 0.1 x 30 =
133,333 switching cycles/year.
EN 4