7
EX-AZ 3550
Operating instructions
Safety switch
EN
3. Mounting
3.1 General mounting instructions
Fitting is only authorised in a de-energised condition
Four mounting holes are provided for fixing the enclosure. The use of
a protective ground wire is imperative. The enclosure must not be used
as an end stop. Any mounting position. The mounting position must be
chosen so as to avoid the penetration of dirt in the used holes.
Please observe the recommendations regarding maximum
impact energy, actuating speed and tightening torque in the
technical data.
Mounting of the actuators:
See mounting instructions actuators.
Please observe the remarks of the standards ISO 12100,
EN 953 and ISO 14119.
3.2 Dimensions
All measurements in mm.
6
18
36.5
38
108
40.5
30
60
Ø
5.3
29
12.5
M20
Choosing the actuating planes
By turning the head in 90° steps, 4 actuating planes are possible. A Torx
T15 screwdriver is required for this purpose.
90°
270°
180°
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.
The contact labelling can be found in the wiring compartment of the
switch.
Cable glands (included in delivery) are only authorised for permanent
cables. The constructor must provide for the necessary strain relief.
After wiring, dust and soiling must be removed from the wiring compart-
ment.
4.2 Contact variants
Contacts are shown with safety guard closed.
1 NO contacts / 2 NC contacts
3 NC
13
21
31
14
22
32
A
A
A
11
21
31
12
22
32
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:
- The installation is executed according to the instructions
- The connection is executed correctly
- The cable is correctly executed and connected
- Check the free movement of the actuating element
- The safety component is not damaged
- Remove particles of dust and soiling
- Check cable entry and connections in de-energised condition
5.2 Maintenance
In case of correct installation in accordance with the above-described
instructions, the component requires little maintenance. By use in
extreme conditions, we recommend routine maintenance including the
following steps:
1. Check the correct fixing of the actuator and the safety switchgear
2. Remove particles of dust and soiling
3. Check cable entry and connections in a de-energised condition
Do not open the device when live.
Adequate measures must be taken to ensure protection
against tampering either to prevent tampering of the safety
guard, for instance by means of replacement actuators.
Damaged or defective components must be replaced.
For explosion protection reasons, the component must be ex-
changed after max. 1 million operations.
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.
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