ABB ACS480, Руководство по оборудованию, Страница: 119 / 180

WARNING!
To prevent radio-frequency interference, do not use a category C2 drive on a
low-voltage public network that supplies domestic premises.
￭ Category C3
Drive has an internal EMC C2 filter as standard. No EMC C3 filter for category C3 is available.
￭ Category C4
If the provisions in category 2 or 3 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.
1
2
3
4
5
6
7
8
9
4
6
Medium voltage network 1
Neighboring network 2
Point of measurement 3
Low voltage 4
Equipment (victim) 5
Equipment 6
Supply transformer 7
Static screen 8
Drive 9
2. An EMC plan for preventing disturbances is drawn up for the installation. A template is
available in
Technical guide No. 3 EMC compliant installation and configuration for a
power drive system (3AFE61348280 (English)).
3. The motor and control cables are selected as specified in this manual. For the best
EMC performance, the EMC recommendations are obeyed.
4. The drive is installed according to the instructions given in this manual.
WARNING!
Do not install a drive with the internal EMC filter connected to an earthing system
that it is not suitable for (for example, an IT system). The supply network becomes
Technical data 119