Magnetic Field When The Brake Is Open - Siemens 1PH818 Operating Instructions & Installation Instructions

Commissioning

7.1 Magnetic field when the brake is open

7.1 Magnetic field when the brake is open
Magnetic field when the holding brake is open
If the motor is equipped with a holding brake, then the shaft extension is magnetized when
the holding brake is open, i.e. if a voltage is connected to it.
Magnetic objects will then be suddenly attracted as a result of this magnetic field. This can
result in death, severe injury or material damage.
● Working close to the shaft extension is only permissible in exceptional, justified cases.
● 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
● Do not use any magnetic tools or lifting devices.
● Wear only occupational safety items without magnetic metal parts, e.g. occupational safety
● 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
● Do not perform any cutting at the machine, e.g. drilling threaded holes. Any exceptions
See also
The five safety rules (Page 13)
84
WARNING
Clear access rules must be applied and complied with corresponding to magnetic fields
at 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 occupational health assessment.
safe distance from the machine:
– All kinds of magnetic metal parts such as, keys, glasses, tools, knives, scissors, tape
measures, etc.
– Magnetic jewelry such as rings, chains, needles, watches, etc.
– Electronic devices and data carriers such as service cards, check cards, credit cards,
calculators, cell phones, etc.
– Wallets or other iron-containing objects
– Electrically conductive foreign bodies
shoes with non-magnetic protective caps and soles.
machine.
require written approval from the manufacturer.
SIMOTICS M-1PH8 1PH818., 1PH822.
Operating Instructions 07/2016