Siemens ET 757 E Series Betriebsanleitung Seite 17

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ET 200pro FC
Operating Instructions, 11/2007, A5E01100763B AA
17
Safety information
1
Safety instructions
The warnings, safety information and remarks that follow are intended to be used as both
safety measures for users and as measures that can be put in place to avoid damage to the
product or to components of the connected machines. The following section provides an
overview of warnings, safety information and remarks that are generally applicable to any
work involving the ET 200pro FC product: these are divided into general instructions and
instructions for transportation and storage, commissioning, operation, repair, disassembly,
and disposal.
Particular warnings and danger notices, as well as remarks on certain actions, will be given
at the beginning of each relevant chapter of these Operating Instructions. In all sections,
these will be repeated or expanded upon at key points.
Please read this information carefully: it has been included with your own personal safety in
mind and in order to help you extend the service life of both your ET 200pro FC product and
the machines that are connected to it.
General information
WARNING
These devices carry hazardous voltages and control rotating mechanical parts which can
be dangerous in some circumstances. Non-observance of the warnings or non-compliance
with the instructions in this manual can lead to danger to life, serious injury or substantial
damage to property.
Protection by means of SELV/PELV in case of direct touching is permitted only in areas
with equipotential bonding and in dry interior spaces. If these conditions are not fulfilled,
other protective measures against electric shock are to be taken, e.g. protective insulation.
Only suitably qualified personnel who have previously familiarized themselves with all the
instructions regarding safety, installation, operating and maintenance as set out in this
manual are permitted to work on these devices. Successful and safe operation of these
devices depends on their proper handling, installation, operation and maintenance.
If an RCD (also called ELCB or RCCB) has been installed, the power module works without
switching-off inadvertently provided the following preconditions have been met:
- A type B residual current operated circuit-breaker is used.
- The response limit current of the RCD is 300 mA.
- The neutral conductor of the network has been grounded.
- Only one power module is supplied via each RCD.
- The shielded output cables are shorter than 15 m.
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