PowerMode: Power mode
The MDP92A power supply module with controlled DC link voltage is directly connected to the supply system and supplies energy to the DC link of the MOVIDRIVE® modular application inverter.
The current that flows into the DC link via the device and the voltage of the DC link can be parameterized. Using the power supply module with controlled DC link voltage means that energy storage units of variable size can be used in the DC link.
Up to 4 MDC90A capacitor modules can be integrated in the network. An external energy storage unit can also be connected to the MDP92A power supply module. Load peaks of the motors can be supplied from the energy storage unit and therefore do not put a load on the supply system. Regenerative energy can also be fed back into the storage unit. The external energy storage units are connected directly to the DC link.
The voltage supply of the axis block and the external 24 V consumers is provided by the MDS90A 24 V switched-mode power supply module. It is supplied with both AC voltage via the line connection and DC voltage via the DC link. If one of the supply voltages fails, the system automatically switches over to the remaining supply. The remaining energy of the storage units can now be used to keep the controller active, bring the system to a controlled idle state or carry on operating the system for a certain period of time.
The advantages of PowerMode are:
- Reduction of power peaks from the supply system
- Reduction of energy costs
- Suitable for high power ratings
- Power fail-safe covering outages lasting several minutes
- Minimum conversion losses between storage unit and drive axis with energy consumption and recuperation.
The following figure shows the connection of the Power and Energy Solutions components in PowerMode:
