Table of Contents
Advertisement
MBT Synchronous Torque Motors
2.6.3
Protection against magnetic and electromagnetic fields
●
Do not stay within the motion zone of the machine. Avoid unauthorized
access into the danger zone.
●
Additionally secure vertical axes to prevent them from sinking or de‐
scending after having shutdown the motor, for instance as follows:
–
Mechanically lock the vertical axis,
–
providing an external braking / catching / clamping device, or
–
ensuring sufficient equilibration of the vertical axis.
Magnetic and electromagnetic fields are created in the direct environment of
live conductors or permanent magnets of electro motors and are a serious
danger for persons. The machine operator must sufficiently protect personnel
working in these areas from possibly occurring damage by suitable measures
(e.g. warning notes, protective clothes, designation of the danger zone). Ob‐
serve the safety
instructionschapter 2.6.4 "Protection during handling and
assembly" on page
6.
Observe the country-specific regulations. For Germany, please observe the
specifications of the occupational insurance association BGV B11 and BGR
B11 regarding "electromagnetic fields".
Electro magnetic and magnetic fields!
Danger for persons with active body aids or passive metallic implants and for
pregnant women.
●
For persons with active body aids (like heart pacemakers), passive met‐
allic implants (like hip prosthesis) and pregnant women possible haz‐
ards exist due to electro magnetic or magnetic fields in direct environ‐
ment of electric drive and control components and the corresponding
live conductors.
Access into these areas can be dangerous for these persons:
–
Areas, in which components of electrical drive and control systems
and corresponding live conductors are mounted, activated or oper‐
ated.
–
Areas in which motor parts with permanent magnets are stored, re‐
paired or assembled.
●
Above mentioned persons must contact their attending physician before
entering these areas.
●
Please observe the valid industrial safety regulations for plants which
are fitted with components of electrical drive and control systems and
corresponding live conductors.
Risk of destruction of sensitive parts! Data loss!
●
Keep watches, credit cards, check cards and identity cards and all ferro‐
magnetic metal parts, such as iron, nickel and cobalt away from perma‐
nent magnets.
Crushing hazard of fingers and hand due to heavy attractive forces of the
magnets!
The attractive force of the permanent magnets have an effect on all magnetic
materials. These attractive forces surge especially within a neighborhood <
100 mm. Loose or not fastened components made of magnetizable materials
can abruptly and inadvertently attracted with the permanent magnets. Apart
Safety instructions
R911336703_Edition 03 Bosch Rexroth AG
5/67
Advertisement
Table of Contents
