schmersal T3Z 068 Series User manual

DE
T3Z 068
Operating instructions
Pull-wire emergency-stop switches
EN
EN Operating instructions...................... pages 1 to 4
Translation of the original operating instructions
FR
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actuelle du mode d’emploi dans

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net.
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1
1 About this document
1.1 Function
This operating instructions manual provides all the information you
need for the mounting, set-up and commissioning to ensure the safe
operation and disassembly of the safety switchgear. The operating inst-
ructions must be available in a legible condition and a complete version
in the vicinity of the device.
1.2 
All operations described in this operating instructions manual must
be carried out by trained specialist personnel, authorised by the plant
operator only.
Please make sure that you have read and understood these operating
instructions and that you know all applicable legislations regarding
occupational safety and accident prevention prior to installation and
putting the component into operation.
The machine builder must carefully select the harmonised standards to
-
tion, mounting and integration of the components.
1.3 Explanation of the symbols used
Information, hint, note:
This symbol is used for identifying useful additional information.
Caution: Failure to comply with this warning notice could
lead to failures or malfunctions.
Warning: Failure to comply with this warning notice could
lead to physical injury and/or damage to the machine.
1.4 Appropriate use
The T3Z 068 pull-wire emergency stop switch meets the requirements
of EN ISO 13850, IEC/EN 60947-5-1 and IEC/EN 60947-6-5. Pull-wire
emergency stop switches are used on machinery and plants, where
triggering the emergency stop command must be enabled at arbitrary
points on the wire run.
The safety switchgear must be exclusively used in accordance with the
versions listed below or for the applications authorised by the manufac-
turer. Detailed information regarding the range of applications can be
found in the chapter "Product description".
1.5 General safety instructions
The user must observe the safety instructions in this operating instruc-

prevailing safety regulations and accident prevention rules.
Further technical information can be found in the Schmersal
catalogues or in the online catalogue on the Internet: www.
schmersal.net.
The information contained in this operating instructions manual is provi-

There are no residual risks, provided that the safety instructions as well
as the instructions regarding mounting, commissioning, operation and
maintenance are observed.
1.6 Warning about misuse
In case of inadequate or improper use or manipulations of the
safety switchgear, personal hazards or damage to machinery
or plant components cannot be excluded. The relevant requi-
rements of the standard EN 1088 must be observed.
Content
1 About this document
1.1 Function..............................................1
1.2 ..................1
1.3 Explanation of the symbols used . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1.4 Appropriateuse........................................1
1.5 General safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1.6 Warningaboutmisuse...................................1
1.7 Exclusionofliability.....................................1
2 Product description
2.1 Orderingcode .........................................2
2.2 Specialversions........................................2
2.3 Destinationanduse.....................................2
2.4 Technicaldata.........................................2
2.5  .....................................2
3 Mounting
3.1 General mounting instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
3.2 Dimensions ...........................................3
4 Electrical connection
4.1 General information for electrical connection. . . . . . . . . . . . . . . . . .3
4.2 Contactvariants........................................3
5 Set-up and maintenance
5.1 Functionaltesting.......................................3
5.2 Maintenance ..........................................3
6 Disassembly and disposal
6.1 Disassembly...........................................3
6.2 Disposal..............................................3
7 Appendix
7.1 EC Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
x.000 / v.A. / 02.2010 / BZ-Nr. 3001-15 / Teile-Nr. 1087928-EN / Ausgabe K

2
Operating instructions
Pull-wire emergency-stop switches T3Z 068
EN
1.7 Exclusion of liability
We shall accept no liability for damages and malfunctions resulting from
defective mounting or failure to comply with this operating instructions
manual. The manufacturer shall accept no liability for damages resul-
ting from the use of unauthorised spare parts or accessories.
For safety reasons, invasive work on the device as well as arbitrary re-

the manufacturer shall accept no liability for damages resulting from

to the device.
2 Product description
2.1 Ordering code
This operating instructions manual applies to the following types:
T3Z 068- ➀ YR
➁ ➂
No. Option Description
➀
11 1 NO contact / 1 NC contact
22 2 NO contacts / 2 NC contacts
33 3 NO contacts / 3 NC contacts
➁
Reset by pull ring
M Reset by key
➂
without indicator lamp
G with indicator lamp
Only if the information described in this operating instructions
manual are realised correctly, the safety function and therefo-
re the compliance with the Machinery Directive is maintained.
2.2 Special versions
For special versions, which are not listed in the order code below 2.1,

the standard version.
2.3 Destination and use
Pull-wire emergency stop switches are used wherever it must be possi-
ble to initiate the emergency stop command from any point on a machi-
ne, equipment or plant. The emergency stop command is triggered by
pulling on the tensioned pull-wire.
2.4 Technical data
Standards: IEC/EN 60947-5-1, IEC/EN 60947-5-5,
EN ISO 13850
Enclosure: Grey cast iron, painted
Cover: Grey cast iron, painted
Protection class: IP 65 to EN 60529
Contact material: Silver
Contact types: Change-over contact with double break,
max. 3 NO and 3 NC contacts
Switching system:
A
IEC 60947-5-1 snap action, NC con-
tacts with positive break
Termination: Screw terminals
Cable section: max. 1.5 mm2, min. 0.75mm2, solid and
stranded wire with conductor ferrules
Cable entry: 2 x M20
imp: 4 kV
i: 250 VAC
Ithe: 10 A
 AC-15, DC-13
Iee:
6 A / 24 VDC
Max. fuse rating: 6 A gG D-fuse
Positive break torque: 1.8 Nm
Angle for positive break
travel:
32°
Positive break force 50 N
Actuating force: 
Ambient temperature: -30 °C ... +90 °C
Mechanical life: 50000 operations
Indicator lamp: yellow 230 VAC / 5 W, screw socket BA 15D
Max. wire length: 2 x 50 m
Features: Wire pull and breakage detection
2.5 
Standards: EN ISO 13849-1
B10d 100,000
Service life: 20 years
MTTF
B d x x
hs/h3600
d
10d op op
op
n
0,1 x nop tcycle
-
ters hop, dop and tcycle
3 Mounting
3.1 General mounting instructions


Four mounting holes are available. Mount the pull-wire emergency stop
switch so that the device can be unlocked and reset by hand after an
emergency stop command. The pull wire must be installed according to


3
T3Z 068
Operating instructions
Pull-wire emergency-stop switches
EN
Figure 1
1
367 7 7 2
X
X
A A
LL max. 440 max. 440
max. 50m max. 50m
3 542
Accessories:
➀
Pull-wire with red PVC sheath Ø 5 mm (steel core Ø 3 mm
➁
Eyebolt
➂
Nuts
➃
Stainless steel tension spring
➄
Wire clamp
➅
Tensioner
➆
Wire thimble

Stroke limitation A: 70 mm
Distance between support points: max. 3 m
Equip the pull wire ➀ at the connection points with a thimble ➆ and two
wire clamps ➄ -
hind the thimble. The PVC sheet of the pull wire must be stripped in the
thimble area. Adjust the pre-tension of the springs ➃ by means of the
tensioner ➅ so that the lever is in the middle position and the counter-
side triggers the emergency stop command in case of wire breakage of
slack wire. Then set the stroke limitation of both springs to A = 70 mm
by means of the eyebolt ➁ and the wire clamp.
-

3.2 Dimensions
All measurements in mm.
Pull-wire emergency-stop switches
145
14
40,5
47
10
40
103
33
124,5
162
182
113
M20
64,5
178
4 Electrical connection
4.1 General information for electrical connection
The electrical connection may only be carried out by autho-
rised personnel in a de-energised condition.
For the cable entry, suitable cable glands with an appropriate degree
of protection must be used. Non-used input openings must be sealed
by means of threaded plugs. After wiring, the cover screws must be
tightened uniformly. The optional indicator lamp must be connected with

4.2 Contact variants
1 NO contact /
1 NC contact
2 NO contacts /
2 NC contacts
3 NO contacts /
3 NC contacts
13
21
14
22
S1
13
23
11
21
14
24
12
22
S1
S2
13
21
13
21
13
21
14
22
14
22
14
22
S1
S2
S3
T3Z 068-11YR
T3Z 068-11YRS
T3Z 068-22YR
T3Z 068-22YRS
T3Z 068-33YR
T3Z 068-33YRS
5 Set-up and maintenance
5.1 Functional testing
The safety function of the safety components must be tested. The
following conditions must be previously checked and met:

2. Check the integrity of the cable entry and connections
3. Check the functionality of the switch by actuating the wire
5.2 Maintenance
-

conditions, a regular check including the following steps is recommen-
ded:
1. Actuate the lever to check its free movement
2. Check the correct latching after actuation of the pull-wire emergency
stop switch
3. Remove particles of dust and soiling

5 Check cable entry and connections
Damaged or defective components must be replaced.
6 Disassembly and disposal
6.1 Disassembly
The safety switchgear must be disassembled in a de-energised condi-
tion only.
6.2 Disposal
The safety switchgear must be disposed of in an appropriate manner in
accordance with the national prescriptions and legislations.

4
Operating instructions
Pull-wire emergency-stop switches T3Z 068
EN
T3Z 068-B-EN
K. A. Schmersal GmbH
Industrielle Sicherheitsschaltsysteme
Möddinghofe 30, D - 42279 Wuppertal
Postfach 24 02 63, D - 42232 Wuppertal
 
 
E-Mail: [email protected]
Internet: http://www.schmersal.com
7 Appendix
Note
The currently valid declaration of conformity can be downloa-
ded from the internet at www.schmersal.net.
EC Declaration of conformity
Translation of the original declaration
of conformity
valid as of December 29, 2009
K.A. Schmersal GmbH
Industrielle Sicherheitsschaltsysteme
Möddinghofe 30, D - 42279 Wuppertal
Germany
Internet: www.schmersal.com
We hereby certify that the hereafter described safety components both in its basic design and
construction conforms to the applicable European Directives.
Place and date of issue: Wuppertal, October 28, 2009
Authorised signature
Heinz Schmersal
Managing Director
Name of the safety component / type: T3Z 068
Description of the safety component: Pull-wire emergency stop switch for safety
functions
Harmonised EC-Directives: 2006/42/EC EC-Machinery Directive
Person authorized for the compilation of the
technical documentation:

Möddinghofe 30
42279 Wuppertal
7.1 EC Declaration of conformity