3
ZQ 700
Operating instructions
Pull-wire emergency-stop switches
EN
3.2 Dimensions
All measurements in mm.
51
2
60
160
17
30,5
40,5
30
40,5
p/M5
M20
B
A
Key
A Position indication
B Reset button
3.3 Mounting set-up
For tensioned span lengths up to 10 m, intermediate wire supports are
required every 2 to 5 m. To avoid resonance vibrations in the wire on
machines with high vibrations, it is recommended to realise the individu-
al support length differently. Assembly: refer to image 2.
6 4
2 3
6
5
6
1
0,1 m
2-5 m
max. 10 m
4 6
3
2
A
B
9
8
2 3
0,1 m
2-5 m
max. 10 m
1
8
2
7
A
B
3
9
Image 2: mounting of the components
Key
1 Pull-wire with red PVC sheath Ø 5 mm (steel core: Ø 3 mm)
2 Eyebolt
3 Nut
4 Wire clamp
5 Tensioner
6 Wire thimble
7 Shackle
8 S900 wire tensioner
9 Tension spring ACC-700-RZ173
A Position indication
B Reset button
We recommend the use of the ACC-700-RZ173 tension spring to redu-
ce the effects of temperature variations. Due to the thermal expansion
behaviour of the wire, the maximum authorised wire length is determi-
ned by the ambient temperature range (refer to image 3).
-10
-20
-30
1
0
2
3
4
5
6
7
8
9
10
0
10
20
30
40
50
60
70
l [m]
T[°C]
■
without tension spring
■
with tension spring
Image 3: temperature-dependent maximum wire length 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).
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 4).
Image 4: deformation of the wire thimbles
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.
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. The cover screws must be tightened uniformly
(tightening torque 0.5 Nm)
The switch with plastic enclosure is double insulated. The use of an
earth wire is not authorised.
Accessories cable gland:
Ordering code:
103006013
Authorised cable diameter:
6 - 12 mm
Tightening torque:
4.5 Nm
4.2 Contact variants
ZQ 700-11
ZQ 700-02
14
13
22
21
12
11
22
21
Key
A
Positive break NC contact
