The power circuit is made up of a rectifier bridge, a filter condenser and a triphasic invertor based on IGBTs. In addition to this, it incorporates a crowbar circuit for protecting the equipment when the voltage in the bus increases through braking energy devolution.
The controls incorporated enable the function mode of the converter to be selected, in addition to enabling the parameters of the system to be adjusted:
- External, internal, manual commands, ramps,…
- Corrector parameters.
- Regulation in current or in speed.
- Limitation of maximum speed.
The speed and current may be displayed on the panel s LCD display, and additionally there are lights indicating the quadrant of the functioning of the motor and the activation of energy devolution system (braking).