Wieland SNE 4004K Traducción Del Manual Original página 4

Translation of the original instructions
BA000532 - 12/2011 (Rev. D)
SNE 4004K, SNE 4004KV
13 23 33 61
A1 Y1 Y2 51
K1
K2
SNE 4004K
43 44 52 A2
14 24 34 62
Safety Instructions
Only trained professional electricians may in-
stall, startup, modify, and retrofit this equip-
ment! Disconnect the device / system from all
power sources prior to starting any work! If
installation or system errors occur, line voltage
may be present at the control circuit in devices
without DC isolation!
Observe all electrical safety regulations issued
by the appropriate technical authorities or the
trade association. The safety function can be
lost if the device is not used for the intended
purpose. Opening the housing or any other ma-
nipulation will void the warranty.
WARNING!
If the device has been subjected to improper or
incorrect use it must no longer be used, and the
guarantee loses its validity. Impermissible con-
ditions include:
strong mechanical stress, for example through a
fall, or voltages, currents, temperatures or hu-
midity outside of the specifications.
Before starting up your machine/plant for the
first time, please be sure to check all the safety
functions according to valid regulations, and
observe the specified test cycles for safety
equipment.
WARNING!
Perform the following precautionary steps prior
to installation, assembly, or disassembly:
1. Disconnect supply voltage to the equip-
ment / system prior to starting any work!
2. Lockout/tag the equipment / system to
prevent accidental activation!
3. Confirm that no voltage is present!
4. Ground the phases and short to ground!
5. Protect against adjacent live components
using guards and barriers!
6. The devices must be installed in a cabinet
with a protection class of at least IP 54.
WARNING!
Limited contact protection! Protection type ac-
cording to EN 60529.
Housing/terminals: IP 40/ IP 20.
Finger-proof acc. to EN 50274.
4
Expansion device for safety switching devices
•
Expansion device EN 60204-1:2005 and EN ISO 13849-1:2007
•
Single or two-channel control
•
4 enabling current paths
•
2 signalling current paths
•
1 check-back current path
•
SNE 4004KV with OFF-delay time and time back-up
Device style
SNE 4004K, SNE 4004KV
SNE 4004K-A, SNE 4004KV-A
SNE 4004K-C, SNE 4004KV-C
Front View
K1 LED green operating state relay K1
K2 LED green operating state relay K2
Device and Function Description
SNE 4004K The supply voltage for the unit is lead by one of the output enabling current paths of
the basic unit connected to it. After the supply voltage is applied, the relays K1 and K2 switch into
their operating position. After this switch - on phase the four safety output contacts 13/14, 23/24,
33/34, 43/44 (SNE 4004K) or 17/18, 27/28, 37/38, 47/48 (SNE 4004KV) close and the feedback
contact Y1/ Y2 opens. The status of relays K1 and K2 is indicated by two LEDs. If the E - Stop but-
ton is pressed the enabling current paths of the basic unit open and the relays K1 and K2 of the
SNE 4004K are de - energized. The safety output contacts open and the feedback contact closes.
The feedback contact Y1/ Y2 prevents the re - activation of the basic unit in case the relay K1 or
K2 should not be de - energized.
SNE 4004KV The function corresponds to the one of the SNE 4004K. The SNE 4004KV is available
with four fixed OFF - delay times t
that in case of failure of the external power supply the internal relays K1 and K2 stay energized
until the OFF - delay time t has elapsed. Upon timing - out the relays K1 and K2 go back into their
R1
off - position. The OFF - delay times > 0 s correspond to Stop Category 1.
Proper Use
The device is only to be used as an expansion device for safety switching devices.
Notes
•
The SNE 4004K / KV device's desired stop category and Performance Level (PL) in accordance
with EN ISO 13849-1 or SILCL in accordance with BS EN 62061 always depends on the rele-
vant data for the basic device (e.g. can the expansion device achieve the Performance Level
(PL) of the base device as a maximum).
•
As a safety switching device in stand-alone operation, it corresponds to Performance Level
(PL) d respectively Category 3 according to EN ISO 13849-1:2007 and SILCL 2 acc. EN
62061:2005
•
The expansion units can be connected to one or two safety contacts of the basic unit
according to the safety level requested.
•
The unit can be combined with all basic safety switching devices. The feedback circuit Y1/Y2
of the SNE unit has to be connected to the RESET or to the feedback circuit of the basic unit.
•
Insulation on external wiring should not be cut back more than 8 mm.
•
External fuse protection for the relay and the contacts should not exceed 6 A type gG.
•
If sensors with reed contacts or semiconductor outputs used pay attention to the peak cur-
rent (see technical data section control circuits).
•
The safety functions are not evaluated by UL. The approval is accomplished according to UL
508, general use applications.
Please observe instructions from safety authorities.
with screw-type terminals
with screw-type terminals pluggable
with spring-type terminals pluggable
: 0,2 s, 0,5 s, 1 s, 2 s and 3 s. The item has a time back - up, so
R1