DRIVES AND FREQUENCY CONVERTERS
r750 energy regeneration module for the DC bus
Country: Germany · Model: r750
The r750 regeneration module is connected to the DC bus of a frequency inverter or servo inverter and returns braking energy to the mains. Instead of dissipating this energy in a braking resistor, the system reuses it. The module needs no parameter setting and is ready for operation once connected.
- Connection
- to the DC bus of the inverter
- Setup
- no parameterisation
- Purpose
- returning braking energy to the mains
Technical specifications
| Connection | to the DC bus of the inverter |
|---|---|
| Setup | no parameterisation |
| Purpose | returning braking energy to the mains |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The energy arises when a motor brakes, when loads are lowered and when a drive runs for a long time in generator mode. It is usually dissipated by a braking resistor, whereas the r750 returns it to the supply mains instead and improves the energy balance of the machine. According to the manufacturer, external line filters are not needed for the module, and such products pay back quickly. Thanks to its simplicity it is easy to add when upgrading an existing installation, by connecting it to the DC bus of an existing inverter. In the control cabinet the module stands next to the inverter and complements other accessories, namely line reactors, EMC filters, braking resistors and power supply modules. The energy is not lost as heat.
How to choose
The choice between regeneration and a resistor depends on the duty. For long operation in generator mode, lowering loads and braking large moments of inertia, the r750 returns energy to the mains. Power, currents and dimensions are not given in the available data, so they are checked in the manufacturer's documentation for the specific inverter.
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r750 energy regeneration module for the DC bus. We reply within one business day.
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FAQ
What does the r750 regeneration module do?
It returns to the supply mains the energy released when a motor brakes, when loads are lowered or when a drive runs in generator mode.
Where is the r750 connected?
Directly to the DC bus of a frequency inverter or servo inverter. The module stands in the control cabinet next to the inverter.
Does the r750 need parameter setting?
No, the module works without parameter setting and is ready for operation right after connection.
Are line filters needed for the r750?
According to the manufacturer, external line filters are not needed for the module.
How does the r750 differ from a braking resistor?
A resistor dissipates braking energy as heat, while the r750 returns it to the mains. So the energy is not lost.
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