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Beckhoff Automation AG

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Energy management

Brake resistor

During the braking process of the motor load, kinetic energy is converted and routed as electrical energy via the DC bus into the DC link capacitor. Depending on the drive system, the capacitors installed directly in the drive or in the power supply module store this energy in order to make it available to the system for new acceleration processes. The increasing DC link voltage must be limited if the capacitance of the capacitors in the system is not sufficient. This is done by applying the DC link voltage to brake resistors in order to convert excess energy into heat and thus to safely limit the DC link voltage. An integrated brake resistor is installed in our power supply modules as an option. If this is insufficient, AX2090-BWxx external brake resistors can be connected to the system. With the help of the Motion Designer, the braking power for a system – consisting of several drives – can be calculated and it is possible to determine whether the internal built-in capacitance and the braking power is sufficient for the application. If necessary, the Motion Designer proposes a suitable brake resistor.

Brake resistor for control cabinet installation

  • AX2090-BW50-xxxx for AX5000
  • AX2090-BW80-xxxx for AX8000

Brake resistor in IP65

  • AX2090-BW65-xxxx for all systems
Your selection:
    • AX8820 | Universal regenerative unit

      AX8820 | Universal regenerative unit

      Function:
      regenerative unit
    • AX5021-0000-0000 | Brake module

      AX5021-0000-0000 | Brake module

      Ordering information:
      brake module unit with internal braking resistor (250 W) and connection option for an external braking resistor up to 6 kW as well as an additional DC link expansion capacity for storing of brake energy
      Protection rating:
      IP20
    • AX2090-BW65-0410 | External IP65 braking resistors for AX5190 to AX5193/AX8500

      Ordering information:
      external braking resistor IP65 for AX5190 to AX5193/AX8500, 0.4 kW, 10 Ω, 5 m connection cable
      Protection rating:
      IP65
    • AX2090-BW65-0418 | External IP65 braking resistors for AX5160 and AX5172/AX8640

      Ordering information:
      external braking resistor IP65 for AX5160 and AX5172/AX8640, 0.4 kW, 18 Ω, 5 m connection cable
      Protection rating:
      IP65
    • AX2090-BW65-0423 | External IP65 braking resistors for AX5118 to AX5140

      Ordering information:
      external braking resistor IP65 for AX5118 to AX5140, 0.4 kW, 23 Ω, 5 m connection cable
      Protection rating:
      IP65
    • AX2090-BW65-0433 | External IP65 braking resistors for AX5112/AX8620/AMP8620

      Ordering information:
      external braking resistor IP65 for AX5112/AX8620/AMP8620, 0.4 kW, 33 Ω, 5 m connection cable
      Protection rating:
      IP65
    • AX2090-BW65-0447 | External IP65 braking resistors for AX5101 to AX5112 and AX520x

      Ordering information:
      external braking resistor IP65 for AX5101 to AX5112 and AX520x, 0.4 kW, 47 Ω, 5 m connection cable
      Protection rating:
      IP65
    • AX2090-BW65-0510 | External IP65 braking resistors for AX5190 to AX5193/AX8500

      Ordering information:
      external braking resistor IP65 for AX5190 to AX5193/AX8500, 0.45 kW, 10 Ω, 5 m connection cable
      Protection rating:
      IP65
    • AX2090-BW65-0518 | External IP65 braking resistors for AX5160 and AX5172/AX8640

      Ordering information:
      external braking resistor IP65 for AX5160 and AX5172/AX8640, 0.45 kW, 18 Ω, 5 m connection cable
      Protection rating:
      IP65
    • AX2090-BW65-0523 | External IP65 braking resistors for AX5118 to AX5140

      Ordering information:
      external braking resistor IP65 for AX5118 to AX5140, 0.45 kW, 23 Ω, 5 m connection cable
      Protection rating:
      IP65
    • AX2090-BW65-0533 | External IP65 braking resistors for AX5112/AX8620/AMP8620

      Ordering information:
      external braking resistor IP65 for AX5112/AX8620/AMP8620, 0.45 kW, 33 Ω, 5 m connection cable
      Protection rating:
      IP65
    • AX2090-BW65-0547 | External IP65 braking resistors for AX5101 to AX5112 and AX520x

      Ordering information:
      external braking resistor IP65 for AX5101 to AX5112 and AX520x, 0.45 kW, 47 Ω, 5 m connection cable
      Protection rating:
      IP65
    • AX2090-BW65-1510 | External IP65 braking resistors for AX5190 to AX5193/AX8500

      Ordering information:
      external braking resistor IP65 for AX5190 to AX5193/AX8500, 1.5 kW, 10 Ω, 5 m connection cable
      Protection rating:
      IP65
    • AX2090-BW65-1518 | External IP65 braking resistors for AX5160 and AX5172/AX8640

      Ordering information:
      external braking resistor IP65 for AX5160 and AX5172/AX8640, 1.5 kW, 18 Ω, 5 m connection cable
      Protection rating:
      IP65
    • AX2090-BW65-1523 | External IP65 braking resistors for AX5118 to AX5140

      Ordering information:
      external braking resistor IP65 for AX5118 to AX5140, 1.5 kW, 23 Ω, 5 m connection cable
      Protection rating:
      IP65
    • AX2090-BW65-1533 | External IP65 braking resistors for AX5112/AX8620/AMP8620

      Ordering information:
      external braking resistor IP65 for AX5112/AX8620/AMP8620, 1.5 kW, 33 Ω, 5 m connection cable
      Protection rating:
      IP65
    • AX2090-BW65-1547 | External IP65 braking resistors for AX5101 to AX5112 and AX520x

      Ordering information:
      external braking resistor IP65 for AX5101 to AX5112 and AX520x, 1.5 kW, 47 Ω, 5 m connection cable
      Protection rating:
      IP65
    • AX2090-BW65-1610 | External IP65 braking resistors for AX5190 to AX5193/AX8500

      Ordering information:
      external braking resistor IP65 for AX5190 to AX5193/AX8500, 1.6 kW, 10 Ω, 5 m connection cable
      Protection rating:
      IP65
    • AX2090-BW65-1618 | External IP65 braking resistors for AX5160 and AX5172/AX8640

      Ordering information:
      external braking resistor IP65 for AX5160 and AX5172/AX8640, 1.6 kW, 18 Ω, 5 m connection cable
      Protection rating:
      IP65
    • AX2090-BW65-1623 | External IP65 braking resistors for AX5118 to AX5140

      Ordering information:
      external braking resistor IP65 for AX5118 to AX5140, 1.6 kW, 23 Ω, 5 m connection cable
      Protection rating:
      IP65
    • AX2090-BW65-1633 | External IP65 braking resistors for AX5112/AX8620/AMP8620

      Ordering information:
      external braking resistor IP65 for AX5112/AX8620/AMP8620, 1.6 kW, 33 Ω, 5 m connection cable
      Protection rating:
      IP65
    • AX2090-BW65-1647 | External IP65 braking resistors for AX5101 to AX5112 and AX520x

      Ordering information:
      external braking resistor IP65 for AX5101 to AX5112 and AX520x, 1.6 kW, 47 Ω, 5 m connection cable
      Protection rating:
      IP65
    • AX2090-BW80-1000 | External breaking resistors for AX8000

      AX2090-BW80-1000 | External breaking resistors for AX8000

      Ordering information:
      external braking resistor for AX8640-0000-0000 power supply module, 1.0 kW, 18 Ω
      Protection rating:
      IP20
    • AX2090-BW80-1600 | External breaking resistors for AX8000

      AX2090-BW80-1600 | External breaking resistors for AX8000

      Ordering information:
      external braking resistor for AX8620-0000-0000 power supply module, 1.6 kW, 33 Ω
      Protection rating:
      IP20
    • AX2090-BW80-2000 | External breaking resistors for AX8000

      AX2090-BW80-2000 | External breaking resistors for AX8000

      Ordering information:
      external braking resistor for AX8640-0000-0000 power supply module, 2.0 kW, 18 Ω
      Protection rating:
      IP20