Category C4 - ABB ACS380 Hardware Manual



Category C4

This is applicable to ACS380-040x-1 drives.
If the provisions in Category C2 or C3 are not met, the requirements of the standard
can be met as follows:
1. It is ensured that no excessive emission is propagated to neighboring low-voltage
networks. In some cases, the inherent suppression in transformers and cables is
sufficient. If in doubt, the supply transformer with static screening between the
primary and secondary windings can be used.
Neighboring network
Point of measurement
Low voltage
Equipment
2. An EMC plan for preventing disturbances is drawn up for the installation. A
template is available from the local ABB representative.
3. The motor and control cables are selected as specified in this manual.
4. The drive is installed according to the instructions given in this manual.
WARNING! To prevent radio-frequency interference, do not use a category C4
drive on a low-voltage public network which supplies domestic premises.
Medium voltage network
Equipment
(victim)
Supply transformer
Static screen
Low voltage
Equipment
Technical data 117
Drive