schmersal ZQ 900 User manual

ZQ 900
Operating instructions
Pull-wire emergency stop switches
EN 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
instructions must be available in a legible condition and a complete
version in the vicinity of the device.
1.2 Target group: authorised qualified personnel
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 be complied with as well as other technical specifications for the
selection, mounting and integration of the components.
1.3 Explanation of the symbols used
Information, hint, note:
This symbol indicates 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 Schmersal range of products is not intended for private consumers.
The products described in these operating instructions are developed
to execute safety-related functions as part of an entire plant or machine.
It is the responsibility of the manufacturer of a machine or plant to
ensure the correct functionality of the entire machine or plant.
The safety switchgear must be exclusively used in accordance with
the versions listed below or for the applications authorised by the
manufacturer. 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
instructions manual, the country specific installation standards as well
as all 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:
products.schmersal.com.
The information contained in this operating instructions manual is
provided without liability and is subject to technical modifications.
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 improper use or manipulation of the safety
switchgear, personal hazards or damages to machinery or
plant components cannot be excluded.
Content
1 About this document
1.1 Function ..............................................1
1.2 Target group: authorised qualied personnel..................1
1.3 Explanation of the symbols used ...........................1
1.4 Appropriate use ........................................1
1.5 General safety instructions ...............................1
1.6 Warning about misuse ...................................1
1.7 Exclusion of liability .....................................2
2 Product description
2.1 Ordering code .........................................2
2.2 Special versions........................................2
2.3 Purpose ..............................................2
2.4 Technical data .........................................2
2.5 Safety classication ....................................2
3 Mounting
3.1 General mounting instructions .............................3
3.2 Dimensions ...........................................4
4 Electrical connection
4.1 General information for electrical connection..................4
4.2 Contact Options ........................................4
5 Set-up and maintenance
5.1 Functional testing.......................................4
5.2 Maintenance ..........................................4
6 Disassembly and disposal
6.1 Disassembly...........................................4
6.2 Disposal ..............................................4
7 EU Declaration of conformity
ACE - 09.2023 / 573764-EN / K
EN Operating Instructions . . . . . . . . . . . pages 1 to 5
Original

2
Operating instructions
Pull-wire emergency stop switches ZQ 900
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
resulting from the use of unauthorised spare parts or accessories.
For safety reasons, invasive work on the device as well as arbitrary
repairs, conversions and modifications to the device are strictly
forbidden, the manufacturer shall accept no liability for damages
resulting from such invasive work, arbitrary repairs, conversions and/or
modifications to the device.
2. Product description
2.1 Ordering code
This operating instructions manual applies to the following types:
ZQ 900- ➀➁ - ➂
No. Option Description
➀
11 1 NO contact / 1 NC contact
13 1 NO contact / 3 NC contacts
22 2 NO contacts / 2 NC contacts
02 2 NC contacts
04 4 NC contacts
➁
without emergency-stop button
N with emergency-stop button
➂
Cable entry 3x M20
STC2 Connector plug, M12, A-coded, 4-pole
FB Connector plug, M12, A-coded, 8-pole
Only if the information described in this operating instructions
manual are realised correctly, the safety function and
therefore 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,
these specifications apply accordingly, provided that they correspond to
the standard version.
2.3 Purpose
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. If the tensioned pull-wire is pulled or
in case of wire breakage or if the optional emergency stop switch is
pushed, the switching function of the pull-wire emergency stop switch is
activated (refer to image 1).
F
1
0
0
Image 1: Position indication and actuation
Design/operating principle
The pull-wire emergency stop switches of the ZQ 900 series are brought
into the operational condition by the proper pre-tensioning of the wire.
Up to two switching elements located on the inside of the switch have
either 2 or 4 contacts, whereby the NC contacts are closed and the
NO contacts are opened in tensioned condition.
After actuation of the emergency stop function, a latching mechanism
maintains the stop command until the switch is released by pushing the
blue reset button. Prior to the reset of the emergency stop signal, the
reason why the switch has been actuated must be determined. The
switch can only be reset if the switch is correctly pre-tensioned (position
indication in central position, refer to image 1).
The ZQ 900-FB is for use in combination with the safety field box SFB
made by Schmersal.
The user must evaluate and design the safety chain in
accordance with the relevant standards and the required
safety level.
The entire concept of the control system, in which the safety
component is integrated, must be validated to the relevant
standards.
2.4 Technical data
Standards: EN 60947-5-1, EN 60947-5-5, EN 620, EN ISO 13850
Enclosure: zinc die-cast, paint
Cover: thermoplastic
Degree of protection: IP65, IP67 to EN 60529
- ZQ 900-...-N: IP65
Protection class: I
Degree of pollution: 3
Contact material: Silver
Switching system: Change-over contact with double break,
1 to 4 NC contacts,
snap action with positive break NC contacts
Termination: screw terminals or connector plug M12,
A-coded, 4-pole or 8-pole
Cable section: max. 2.5 mm²
(incl. conductor ferrules)
Cable entry: 3x M20
Utilisation category AC-15, DC-13 Ie/Ue:
- Screw terminal connection 4 A / 240 V/AC, 1 A / 24 V/DC
- Plug connector M12, 4-pole 4 A / 240 V/AC, 1 A / 24 V/DC
- Plug connector M12, 8-pole 2 A / 24 V/AC, 1 A / 24 V/DC
Rated impulse withstand voltage Uimp:
- Screw terminal connection 6 kV
- Connector plug M12, 4-pole 2.5 kV
- Connector plug M12, 8-pole 0.8 kV
Rated insulation voltage Ui:
- Screw terminal connection 500 V
- Connector plug M12, 4-pole 250 V
- Connector plug M12, 8-pole 32 V
Thermal test current Ithe:
- Screw terminal connection 10 A
- Connector plug M12, 4-pole 4 A
- Connector plug M12, 8-pole 2 A
Short circuit resistance:
- Screw terminal connection 6 A gG D-fuse
- Connector plug M12, 4-pole 4 A gG D-fuse
- Connector plug M12, 8-pole 2 A gG D-fuse
Required rated short-circuit current: 1,000 A
Ambient temperature: –25 °C … +70 °C
Wire length: max. 75 m depending in relation to the
range of ambient temperature (see image 4)
Mechanical life: > 1.000.000 operations
Input terminal wire size AWG: 14-22
Max. Torque: 7 Lb In
Use solid or stranded copper conductors only.
2.5 Safety classification
Standards: EN ISO 13849-1
B10D NC contact: 100,000
Mission time: 20 years
MT
TF
Bdxx
hs/h3600
D
10Dopop
op
n
0,1 x nop tcycle
(Determined values can vary depending on the application-specific
parameters hop, dop and tcycle as well as the load.)
If multiple safety components are wired in series, the Performance
Level to EN ISO 13849-1 will be reduced due to the restricted error
detection under certain circumstances.

3
ZQ 900
Operating instructions
Pull-wire emergency stop switches
EN
3. Mounting
3.1 General mounting instructions
The installation may only be carried out with the system
de-energised and by authorised personnel.
The pull-wire emergency stop switch is fitted by means of two screws
(distance of the drill holes 40 mm or 48 mm), so that a release by hand
can be realised without hazard.
The device must be arranged so that unlocking by hand is
entirely without risk and that the entire length of the wire can
be seen from the switch.
In accordance with EN 60947-5-5 (EN 620), the maximum
perpendicular traction force to be exercised on the wire in
order to activate the emergency pull-wire switch is 200 N
(125 N), the maximum deflection is 400 mm (300 mm).
Sufficient space must be provided so that the required
actuating deflection can be reached. It must be ensured that
when tensioned, the wire rope always follows a straight course
and that it remains in the correct position at all times (including
at the redirection point). External influences (temperature
variations, ageing) can affect the properties of the wire rope.
The information in EN ISO 13850 must be observed.
For lengths of over 10 m, intermediate wire supports must be installed
after max. 3 m. To avoid resonance vibrations in the wire on machines
with high vibrations, it is recommended to realise the individual support
length differently. Assembly: refer to image 2.
64 23 65 61
0,1 m
A
B
C
46 932
max. 75 m
max. 3 m
8238327
0,1 m
A
B
19
C
max. 3 m
Image 2: Mounting of the components
Key
A
B
C
Position indicator
Emergency-Stop button
Reset button
1 Pull-wire with red PVC jacket,
Ø 5 mm (steel core: Ø 3 mm)
2 Eyebolt
3 Nut
4 Wire clamp
5 Tensioner
6 Wire thimble
7 Shackle
8 Wire tensioner S900
9 Tension spring ACC-RS900-TS
We recommend the use of the ACC-RS900-TS tension spring to reduce
the effects of temperature variations.
Due to the thermal expansion behaviour of the wire, the maximum
authorised length of wire is determined by the ambient temperature
change (refer to image 4).
In order to ensure an optimal operation safety and to save
time during fitting, we recommend using the wire rope and
the combined fixing and tensioning system from Schmersal.
Alternatively, wire thimbles and wire clamps can be used
in conjunction with a tensioner. In this case, the red PVC
sheet must be removed in the clamp area prior to installing
the wire rope.
As the thimbles are subject to deformation in case of wire pull, the wire
should be pulled several times after fitting. After that, the wire must be
re-tensioned (see image 3).
Image 3: Thimble deformation
Correct operation of the product is directly connected to the data
shown in the diagram. The maximum wire length depends on the
temperature change to which the hauling wire system is exposed. The
corresponding wire length with and without external tension spring is
shown in the diagram.
354045
5
15
25
35
4
5
55
65
75 lm[]
[]
30 25 20 15 10 5x 35 40 4530252015105 Kdt
x Reference temperature
■
without tension spring
■
with tension spring
Image 4: temperature-dependent maximum length of wire with or
without tension spring
The pull-wire must be fixed to the ring and then be pre-tensioned until
the position indication is in the central position (refer to image 1).

4
Operating instructions
Pull-wire emergency stop switches ZQ 900
EN
4.2 Contact Options
Contacts shown in a de-energised condition.
Pin assignment of versions with M12 connector shown in brackets.
All NC contacts have positive break B .
ZQ 900-11 ZQ 900-02(-STC2)
14
13
22
21
12
11
2221
(4)
(2)
(1)
(3)
ZQ 900-13 ZQ 900-22
11 12
2221
14
13
2221
S1 S2
13 14
2221
14
13
2221
S1 S2
ZQ 900-04 ZQ 900-02-FB
11 12
2221
12
11
2221
S1 S2
12
11
2221
(7)
(4)
(2)
(6)
Connector STC2
M12
4-pole
3
2
1
4
Connector FB
M12
8-pole
1
2
3
4
5
6
7
8
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:
1. Check the correct fitting of the pull-wire emergency stop switch
2. Check the integrity of the cable entry and connections
3. Check the switch enclosure for damage
4. Check the functionality of the switch by actuating the wire
5. Check the cable tensioning by means of the position indicator
5.2 Maintenance
A regular visual inspection and functional test, including the following
steps, is recommended:
1. Check the functionality of the switch by actuating the wire and,
if applicable, the emergency stop switch
2. Check the cable entries and the wire connections
3. Remove particles of dust and soiling
4. Check the wire tension through the wire position indication and check
the wire and the wire guides for damage and correct fitting
Do not open the device under tension.
Damaged or defective components must be replaced.
6. Disassembly and disposal
6.1 Disassembly
The safety switchgear must be disassembled in a de-energised
condition only.
6.2 Disposal
The safety switchgear must be disposed of in an appropriate
manner in accordance with the national prescriptions and legislations.
3.2 Dimensions
All measurements in mm.
71,5
40
48
¤6,5
12
10
133,5
97
27
49,5
220-236
¤15
M20x1,5
71,3
96,3
A
B
15,5
M12
-STC2 / -FB
C
Key
A Position indication
B Emergency-Stop button
C Reset button
4. Electrical connection
4.1 General information for electrical connection
The electrical connection may only be carried out by
authorised personnel in a de-energised condition.
1. Cover screws must be loosened
2. Dust shield cap remove
3. Cable glands M20 x 1.5 with an appropriate degree of protection
must be used
4. When wiring, please ensure that no cables are located within the
range of the lever system and the pushbutton
5. The inside of the switch must be imperatively cleaned (e.g. removal
of cable residues), considering that foreign bodies can affect the
switching behaviour
6. Unused cable entries must be sealed by means of locking screws,
included in delivery (tightening torque 4 Nm)
7. The cover screws must be tightened uniformly (tightening torque 1 Nm)
Accessories cable gland
Ordering code: 103006011
Authorised cable diameter: 6 … 12 mm
Tightening torque: 8 Nm
Settle length x of the conductor: 6 mm
XX

5
EN
ACE-ZQ900-F-EN
ZQ 900
Operating instructions
Pull-wire emergency stop switches
7. EU Declaration of conformity
Name of the component: ZQ 900
Type: See ordering code
Description of the component: Pull-wire emergency stop switches
Relevant Directives: 2006/42/EC
2011/65/EU
Machinery Directive
RoHS-Directive
Applied standards: EN 60947-5-1:2017 + AC:2020
EN 60947-5-5:1997 + A1:2005 + A11:2013 + A2:2017
EN 620:2002 + A1:2010
EN ISO 13850:2015
Person authorised for the compilation
of the technical documentation:
Oliver Wacker
Möddinghofe 30
42279 Wuppertal
The currently valid declaration of conformity can be
downloaded from the internet at products.schmersal.com.
K.A. Schmersal GmbH & Co. KG
Möddinghofe 30, 42279 Wuppertal
Germany
Phone: [phone]
Fax: [phone]
E-Mail: [email protected]
Internet: www.schmersal.com
Production site:
ACE Schmersal
Eletroeletrônica Industrial Ltda.
Av. Brasil, nº 815
Jardim Esplanada – CEP: 18557-646, Boituva – SP
Brazil
Phone: +55 - (0)15 - 32 63 - 9866
Fax: +55 - (0)15 - 32 63 - 9890
E-Mail: [email protected]
Internet: http://www.schmersal.com.br
Place and date of issue: Boituva, March 14, 2023
Authorised signature
Marco Antonio De Dato
Head of Engineering and Design
EU Declaration of conformity
Original ACE Schmersal
Eletroeletrônica Industrial Ltda.
Av. Brasil, nº 815
Jardim Esplanada
CEP: 18557-646 Boituva – SP
Brazil
Internet: www.schmersal.com.br
We hereby certify that the hereafter described components both in their basic design and construction conform
to the applicable European Directives.