Siemens SINAMICS G130 Engineering Manual page 94

Fundamental Principles and System Description
Engineering Information
SINAMICS converter or Infeed
G130
G150
S120 Basic Line Module
S120 Smart Line Module
S120 Active Line Module
+ Active Interface Module
S150
Max. permissible motor cable length to ensure compliance with interference voltage limits of category C3 by
standard line filters or with interference voltage limits of category C2 by the additional, optional line filters
Notes about the table:
·
In the case of single-motor drive systems in which one motor is supplied by a G130, G150 or S150 converter
or by an S120 Line Module with an S120 Motor Module, the stated motor cable lengths refer to the distance
between the converter or Motor Module and the motor as measured along the cable and already allow for
the fact that several cables must be routed in parallel for high-output drives.
·
In the case of multi-motor drives in which one S120 Line Module supplies a DC busbar to which multiple
Motor Modules are connected, the stated motor cable lengths refer to the total cable length, i.e. the sum of
the distances between individual Motor Modules and the relevant motors. The stated lengths also allow for
the fact that several cables must be routed in parallel for high-output drives.
·
When S120 Line Modules (Basic Line Modules, Smart Line Modules, Active Line Modules) are connected in
parallel, the stated motor cable lengths apply in each case to one of the parallel-connected Line Modules.
·
The use of optional line filters (option L00) for parallel connections of S120 Line Modules in Cabinet Modules
format for applications in the "first" environment in accordance with category C2 is possible only if a
separate Line Connection Module LCM is provided for each of the parallel-connected Line Modules. Option
L00 is not suitable for implementing an arrangement in which one Line Connection Module LCM is shared
by two Line Modules in a "mirror-image" mechanical setup.
Standards
EN 61800-3
Adjustable speed electrical power drive systems, part 3: EMC requirements and specific test methodes
Variable-speed electrical drives fall into the scope of EMC product standard EN 61800-3 with regard to interference
emissions. This standard has been discussed in detail above.
EN 55011
Industrial, scientific and medical (ISM) radio-frequency equipment - Radio disturbance characteristics -
Limits and methods of measurement
Before the EMC product standard was introduced, variable-speed electrical drives were covered by the scope of
standard EN 55011 which defines limit values for the interference emissions of industrial, scientific and medical radio-
frequency equipment. EN 55011 defines two classes of limit value:
·
Class A:
Equipment in class A is suitable for use in all locations except residential areas and other areas connected
directly to a low-voltage distribution system which (also) supplies residential buildings. Equipment in class A
must remain within the limits defined for class A.
à Class A therefore corresponds to the "second" environment defined by EN 61800-3.
·
Class B:
Equipment in class B is suitable for use in residential areas and other areas connected directly to a low-
voltage distribution system which (also) supplies residential buildings. Equipment in class B must remain
within the limits defined for class B.
à Class B therefore corresponds to the "first" environment defined by EN 61800-3.
SINAMICS Engineering Manual – November 2015
94/528
Ó Siemens AG
Maximum permissible motor cable length (shielded)
(e.g. PROTOFLEX EMV-FC or Protodur NYCWY)
100 m
100 m
100 m
300 m
300 m
300 m