Braking resistors

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  (2)
• Информационные материалы

  Информационные материалы

  

  Braking resistor

  Excess energy in the DC link is dissipated in the braking resistor. The braking resistors are intended for use with PM240 Power Modules which feature an integrated braking chopper, but cannot regenerate energy to the supply system. For regenerative operation, e.g. the braking of a rotating mass with high moment of inertia, a braking resistor must be connected to convert the resulting energy into heat.

  The braking resistors can be installed at the side next to the PM240 Power Modules.

  The braking resistors for the Power Modules of frame size FSF should be placed outside the control cabinet or outside the switchgear room so that the heat loss is removed from the area of the Power Modules. The level of air conditioning required is therefore reduced.

  Every braking resistor has a temperature switch (UL-listed). The temperature switch should be evaluated to prevent consequential damage if the braking resistor overheats.

  Интеграция

  Available optional braking resistors

  	Frame size
  	FSF
  PM240 Power Module with integrated braking chopper
  DC link components
  Braking resistor	S

  
  
  

  S = Lateral mounting

  Технические данные

  Line voltage 380 V ... 480 V 3 AC		Braking resistor
  		6SE6400-4BD24-0FA0	6SE6400-4BD26-0FA0
  Resistance	Ω	8.2	5.5
  Rated power PDB (Continuous braking power)	kW (hp)	4 (5.36)	5.6 (7.51)
  Peak power Pmax (load duration ta = 12 s with period t = 240 s)	kW (hp)	80 (107)	120 (161)
  Power connections		M6 screw studs	M6 screw studs
  Thermostatic switch		NC contact	NC contact
  Contact load, max.		250 V AC/2.5 A	250 V AC/2.5 A
  Degree of protection		IP20	IP20
  Dimensions
  Width	mm (in)	395 (15.6)	526 (20.7)
  Height	mm (in)	650 (25.6)	301 (11.9)
  Depth	mm (in)	315 (12.4)	484 (19.1)
  Weight, approx.	kg (lb)	16.7 (36.8)	17.5 (38.6)
  Suitable for PM240 Power Module	Type	6SL3224-0BE37-5UA0 6SL3224-0BE37-5AA0	6SL3224-0BE38-8UA0 6SL3224-0BE41-1UA0
  Frame size		FSF	FSF