Table of Contents
Advertisement
6.2
Electromagnetic compatibility
The following fundamental information and guidelines facilitate compliance with the EMC
directives.
Note
We recommend that EMC is planned for the entire plant.
Cabinet installation
● Use all of the grounding pads and studs for grounding the operator panel and doors.
● Use unpainted, de-oiled mounting plates.
● Establish a central connection between ground and the protective conductor system (PE
Cable installation
● Cables that are subject to or sensitive to interference should be laid as far apart from each
● The distance between the power cable and the signal cable should be at least 20 cm.
● When the cables are routed close to ground potential, the immunity to interference is
● Ground the reserve cores on at least one end.
● In order to avoid additional locations where interference can be coupled in, long cables
● If conductors or cables conduct signals of different classes, then the conductors and cables
SINAMICS PERFECT HARMONY GH150 6SL3826
Operating Instructions 05/2020
protective conductor).
other as possible.
Device-specific data apply for power cables. You can find additional information on power
cables under "Connecting power cables".
increased. For this reason, you are advised to lay these cables along edges and at ground
potential.
should be shortened or routed where there is little interference.
must cross at a right angle. This especially involves sensitive and noisy signals.
– Class 1:
Unshielded cables for ≤ 60 V DC
Unshielded cables for ≤ 25 V AC
Shielded analog signal cables
Shielded bus and data cables
Operator panel interfaces, incremental/absolute encoder cables
– Class 2:
Unshielded cables for > 60 V DC and ≤ 230 V DC
Unshielded cables for > 25 V AC and ≤ 230 V AC
– Class 3:
Unshielded cables for > 230 V AC/V DC and ≤ 1000 V AC/DC
– Class 4:
Unshielded cables for > 1000 V AC/DC
Electrical connection
6.2 Electromagnetic compatibility
73
Advertisement
Table of Contents
