Working On Machines With Permanent Magnets - Siemens SIMOTICS DP Operating Instructions Manual

11.5

Working on machines with permanent magnets

On machines with permanent magnets, the magnetic field is guided in an assembled state in the
magnetic circuit of the machine. This means that no magnetic fields, which may be to your
health, are detectable outside the machine.
Strong magnetic field when the machine is open
A strong magnetic field is always present inside the machine. If the housing is open, e.g. when
maintenance openings are open or when working inside the machine, magnetic objects can be
suddenly attracted by this magnetic field. This can result in death, serious injury or material
damage.
• Working in the vicinity of the rotor is only permitted in exceptional circumstances.
• People who need to use electronic or magnetic medical aids such as pacemakers, hearing
• Observe the following measures.
Personal protective measures
• Ensure that you never wear or carry any of the following objects and that they are kept a safe
distance from the machine:
– All kinds of magnetic metal parts such as, keys, glasses, tools, knives, scissors, tape
– Magnetic jewelry such as rings, chains, needles, watches, etc.
– Electronic devices and data carriers such as service cards, check cards, credit cards,
– Wallets or other iron-containing objects
– Electrically conductive foreign bodies
• Do not use any magnetic tools or lifting devices.
• Wear only occupational safety items without magnetic metal parts, e.g. occupational safety
shoes with non-magnetic protective caps and soles.
• Keep your shoes and clothing free from chips and waste containing iron.
• Exercise caution when installing accessories. Ensure that no parts fall into the inside of the
machine.
• Do not perform any cutting at the machine, e.g. manufacturing threaded holes. Any
exceptions require written approval from the manufacturer.
1FZ shaft height 280
Operating Instructions, 02/2022, A5E51698698A
WARNING
Unambiguous access rules must be established in accordance with the magnetic fields
prevailing in the workplace. Clearly mark the boundaries of the areas where standing is
permitted.
aids, implants or similar devices, are at particularly high risk. Such persons must undergo an
industrial medicine assessment.
measures, etc.
calculators, cell phones, etc.
11.5 Working on machines with permanent magnets
Disposal
125