6SN1145-1AA01-0AA1 - Power Supply - SIEMENS

The entire drive unit is connected to the supply network via the power supply modules. The power supply / recovery module (A / R module) and the non-stabilized supply module (AN module) allow power to be supplied to the DC intermediate circuit. In addition, the A / R, AN and monitoring modules (MS module) also supply power to the electronics of the connected modules.

In the case of the AN module, the energy of the drives reinjected into the intermediate circuit in motor braking mode is transformed into thermal energy and dissipated in the environment in the braking resistors to be integrated or to be added.
If necessary, one or more pulsed resistance modules
(RP modules) can also be integrated within the configuration limits. This module is used to:

- machines with short braking cycles and short duration, generating a low level of braking energy,

- sets of drive units with low dynamic requirements, particularly for spindle drive.

Adaptation of the network supply modules to the existing network conditions is carried out on switches S1.1 and S1.4.
The drive is designed for use in industrial environments with grounded TN-S and TN-C (VDE 0100, Part 300). For the other network topologies, a transformer equipped with separate windings in the secondary coupling yn must be inserted upstream.