Emc; Install And Connect In Accordance With Emc - Siemens SINAMICS G180 Installation And Operating Instructions Manual

Injury due to explosion of capacitors
If the unit has been stored for longer than two years, the DC link capacitors can explode
during commissioning. Reform the DC link capacitors if the unit has been stored for longer
than two years. Contact the factory to determine what measures must be taken.
4.3

EMC

4.3.1

Install and connect in accordance with EMC.

Note the following rules regarding the installation and connection of inverters:
● Connect the cable shield over a wide area and with low inductance. Placing the shield over
● If you also want to use the shield as PE conductor, connect the shield doubled.
● For signal lines with Sub-D male or female connector, place the shield over the Sub-D
● Install cables in such a way that there are no crossovers between control cables and power
● Ensure that all metallic parts of the switch cabinet are surface-connected with good
● Connect all circuit breakers, relays, solenoid valves etc. in the switch cabinet to RC
● Twist unshielded wires. This particularly includes analog signals of the same power circuit
Installation and operating instructions Sinamics G180
Operating Instructions, 05/2013, 4BS0751-001
WARNING
bundles of wires has practically no shield effect.
– Use a low-inductance and wide area shield at the cable entry for EMC reasons.
– Use a plait on the PE rail as a precaution.
connector or socket. Additional application at the cable entry is no longer necessary.
cables. If you cannot prevent a crossover on the cable ducts, then make the crossover at
an angle of 90°.
conductivity. Connections with paint layer are not permitted.
– Use contact disks or galvanized plates.
– When connecting the switch cabinet door to the switch cabinet, use grounding straps
that are as short as possible
interference suppressors.
– Do not use any diodes or varistors.
– Install the protective circuit directly on the relevant coil.
i.e. supply and return wires.
Keep the area between supply and return wires as small as possible in order to avoid
unnecessary loop antennas.
Preparations for use
4.3 EMC
37