Danger From Strong Magnetic Fields - Siemens Simotics T-1FW6 Configuration Manual

Description of the motor
2.3 Technical features and environmental conditions
2.3.2

Danger from strong magnetic fields

Occurrence of magnetic fields
Motor components with permanent magnets generate very strong magnetic fields. In the no-
current condition, the magnetic field strength of the motors comes exclusively from the
magnetic fields of components equipped with permanent magnets. Additional
electromagnetic fields occur in operation.
Components with permanent magnets
The rotors of the 1FW6 built-in torque motors described in this manual contain permanent
magnets.
Figure 2-2
Risk to persons as a result of strong magnetic fields
Risk of death as a result of permanent magnet fields
The permanent magnets in the motors represents a danger for people with active medical
implants, who come close to the motors. This is also the case when the motor is switched
off.
Examples of active medical implants include: Heart pacemakers, insulin pumps.
•
With regard to the effect of strong magnetic fields on people, in Germany the DGUV
regulation 103-013 "Electromagnetic fields" of the German Social Accident Insurance must
be complied with! This regulation lists all of the requirements that must be observed at
workplaces. In other countries, the relevant applicable national and local regulations and
requirements must be taken into account.
30
Rotor
WARNING
If you are affected, stay a minimum distance of 300 mm from the permanent magnets
(tripping threshold for static magnetic fields of 0.5 mT according to the Directive
2013/35/EU).
1FW6 external rotor built-in torque motors
Configuration Manual, 12/2020, A5E50516483B AA