Siemens 400 V / 210...590 A Installation in Conformance with EMC Regulations

01.2004 Installation in Conformance with EMC Regulations

6Installation in Conformance with EMC Regulations

The following contains a summary of general information and guidelines which will make it easier for you to comply with EMC and CE regulations.

♦Pay attention to a good conductive connection between the housing of the mains connection module and the AFE inverters and the mounting surface. The use of mounting surfaces with good conducting properties (e.g. galvanized steel plate) is recommended. If the mounting surface is insulated (e.g. by paint), use contact washers or serrated washers.

♦All of the metal cabinet parts must be connected through the largest possible surface area and must provide good conductivity.

If necessary, use contact washers or serrated washers.

♦Connect the cabinet doors to the cabinet frame using grounding strips which must be kept as short as possible.

♦All signal cables must be shielded. Separate the signal cables according to signal groups.

Do not route cables with digital signals unshielded next to cables with analog signals. If you use a common signal cable for both, the individual signals must be shielded from each other.

♦Power cables must be routed separately away from signal cables (at least 20 cm apart). Provide partitions between signal cables and power cables. The partitions must be grounded.

♦Connect the reserve cables/conductors to ground at both ends to achieve an additional shielding effect.

♦Lay the cables close to grounded plates as this will reduce the injection of undesired signals.

♦Use cables with braided shields. Cables with foil shields have a shielding effect which is worse by a factor of five.

♦Contactor operating coils that are connected to the same supply network as the inverter or that are located in close proximity of the inverter must be connected to overvoltage limiters (e.g. RC circuits, varistors).

You will find further information in the brochure "Installation Instructions for EMC-correct Installation of Drives"

(Order No.: 6SE7087-6CX87-8CE0).

Siemens AG 6SE7087-6CX86-2BA1	6-1
SIMOVERT MASTERDRIVES AFE Operating Instructions