Siemens Sinamics S110 Function Manual page 10

Preface
Safety information
Commissioning must not start until you have ensured that the machine, in which the
components described here are installed, complies with the Machinery Directive 98/37/EC.
Only appropriately qualified personnel may mount/install, commission and service the
SINAMICS S units.
The personnel must take into account the information provided in the technical customer
documentation for the product, and be familiar with and observe the specified danger and
warning notices.
Operational electrical equipment and motors have parts and components which are at
hazardous voltage levels, that if touched, can result in severe bodily injury or death.
All work on the electrical system must be carried out when the system has been
disconnected from the power supply.
In combination with the drive system, the motors are generally approved for operation on
TN and TT systems with grounded neutral and on IT systems.
In operation on IT systems, the occurrence of a first fault between an active part and
ground must be signaled by a monitoring device. In accordance with IEC 60364-4-41 it is
recommended that the first fault should be eliminated as quickly as practically possible.
In networks with a grounded external conductor, an isolating transformer with grounded
neutral (secondary side) must be connected between the supply and the drive system to
protect the motor insulation from excessive stress. The majority of TT systems have a
grounded external conductor, so in this case an isolating transformer must be used.
Correct and safe operation of SINAMICS S drive units assumes correct transportation in
the transportation packaging, correct long-term storage in the transport packaging, setup
and installation, as well as careful operation and maintenance.
The details in the Catalogs and proposals also apply to the design of special equipment
versions.
In addition to the danger and warning information provided in the technical customer
documentation, the applicable national, local, and system-specific regulations and
requirements must be taken into account.
To ensure compliance with EN 61800-5-1 and UL 508, only safety extra-low voltages from
the electronics modules may be connected to connections and terminals.
Using protection against direct contact via DVC A (PELV) is only permissible in areas with
equipotential bonding and in dry rooms indoors. If these conditions are not fulfilled, then
other protective measures against electric shock must be used (e.g. protection using
protective impedances or limited voltage or using protective classes I and II).
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DANGER
DANGER
DANGER
Function Manual, 10/2008, 6SL3097-4AB10-0BP0
Drive functions