Table of Contents
Advertisement
Mechanical properties
3.5 Service and inspection intervals
Risk of death and crushing as a result of permanent magnet fields
Severe injury and material damage can result if you do not carefully take into consideration
the safety instructions relating to permanent magnet fields of rotor segments.
• Observe the information in Chapter Danger from strong magnetic fields (Page 31).
Risk of rotor segment magnets causing crushing injuries
The forces of attraction of magnetic rotor segments act on materials that can be
magnetized. The forces of attraction increase significantly close to the rotor segments. The
tripping threshold of 3 mT for risk of injury due to an attraction and projectile effect is
reached at a distance of 300 mm (Directive 2013/35/EU). Rotor segments and materials
that can be magnetized can suddenly slam together unintentionally. Two rotor segments
can also unintentionally slam together.
There is a significant risk of crushing when you are close to a rotor segment.
Close to the rotor segment, the forces of attraction can be several kN - example: Magnetic
attractive forces are equivalent to a force of 100 kg, which is sufficient to trap a body part.
• Do not underestimate the strength of the attractive forces, and work very carefully.
• Wear safety gloves.
• The work should be done by at least two people.
• Do not unpack the rotor segment until immediately before assembly.
• Never unpack several rotor segments at the same time.
• Never place rotor segments directly next to one another without taking the appropriate
• Never carry any objects made of magnetizable materials (for example watches, steel or
• Immediately mount the rotor segment that has just been unpacked.
• Use special mounting equipment when mounting stator segments and rotor segments.
• Keep the following tools at hand to release parts of the body (hand, fingers, foot etc.)
56
WARNING
WARNING
precautions.
iron tools) and/or permanent magnets close to the rotor segment! If tools that can be
magnetized are still required, then hold any tool firmly using both hands. Slowly bring
the tool to the rotor segment.
Always comply with the specified procedure.
trapped between two components:
– A hammer (about 3 kg) made of solid, non-magnetizable material
– Two pointed wedges (wedge angle approx. 10°-15°, minimum height 50 mm) made
of solid, non-magnetizable material (e.g. hardwood)
1FW68 radial segment motors
Configuration Manual, 04/2017, 6SN1197-0AE02-0BP1
Advertisement
Table of Contents
