Technical data 125
Category C3
The drive complies with the standard with the following provisions:
1. The drive is equipped with EMC filter (option +E210) and common mode filter
(option+E208).
2. The motor and control cables are selected as specified in the hardware manual.
3. The drive is installed according to the instructions given in the hardware manual.
4. Maximum motor cable length is 100 meters.
5. The value of parameter 97.01 Switching frequency reference must be set to 2 kHz.
WARNING! A drive of category C3 is not intended to be used on a low-voltage
public network which supplies domestic premises. Radio frequency interference is
expected if the drive is used on such a network.
Category C4
If the provisions under Category C3 cannot be 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.
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 the hardware manual.
4. The drive is installed according to the instructions given in the hardware manual.
WARNING! A drive of category C4 is not intended to be used on a low-voltage
public network which supplies domestic premises. Radio frequency interference is
expected if the drive is used on such a network.
Low voltage
Equipment
Low voltage
Equipment
Equipment
(victim)
Supply transformer
Medium voltage network
Static screen
Point of measurement
Drive
Neighboring network
To Next Page
Loading...
