Supply networks
The AX8820 distributed servo drive system is suitable for operation three-phase networks. The respective network configurations differ by the type of ground connection. For a better understanding, the table below contains examples with the associated meaning:
Network configuration | French term | Meaning |
|---|---|---|
TN | Terre Neutre | Neutral grounding of a point |
TT | Terre Terre | Direct grounding of a point |
TN-C | Terre Neutre Combiné | Combined neutral grounding: Neutral conductor and protective conductor combined to form PEN conductor |
TN-S | Terre Neutre Combiné Séparé | Separate neutral grounding: Separate neutral conductor and protective conductor |
IT | Isolé Terre | Isolation of all active parts from ground |
Connection to TN or TT networks is possible without further measures.
For all other networks, operation is only possible on isolating transformers. An isolating transformer is a mains transformer that transfers the mains voltage to the secondary winding via an electrical isolation. A star point grounded network is made available with the help of this protective isolation.
The AX8820 universal regenerative unit is equipped with a wide-range voltage input and can be connected to the following voltage systems:
- Three-phase 3 x 360...520Y/300 V
TN network
TT network
Notice | |
Damage due to disconnected isolating transformer The following networks require an isolating transformer to be connected upstream. Failure to do so may damage the universal regenerative unit.
|
Asymmetrically grounded network with star point
Asymmetrically grounded delta network
IT delta network
