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 bundles of wires has practically no shield effect.
● If you also want to use the shield as PE conductor, connect the shield doubled.
– Use a low-inductance and wide area shield at the cable entry for EMC reasons.
– Use a plait on the PE rail as a protective measure.
● For signal lines with Sub-D male or female connector, place the shield over the Sub-D
connector or socket. Where relevant, also connect the shield at the cable entry.
● Install cables in such a way that there are no crossovers between control cables and
power cables. If you cannot prevent a crossover on the cable ducts, then make the
crossover at an angle of 90°.
● Ensure that all metallic parts of the switch cabinet are surface-connected with good
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
● Connect all circuit breakers, relays, solenoid valves etc. in the switch cabinet to RC
interference suppressors.
– Do not use any diodes or varistors.
– Install the protective circuit directly on the relevant coil.
Installation and Operating Instructions SINAMICS G180
Operating Instructions, 02/2019, 4BS0751-007
WARNING
that are as short as possible
Preparations for use
4.3 EMC
75