Baumuller b maXX 5000 Series - 11.3 Brake resistors

Accessories and spare parts
Instruction handbook b maXX 5000
Document No.: 5.09021.16
265
of 328
11
11.3 Brake resistors
The minimum permissible resistance value R
min brake resistor
depends on the b maXX that
is used.
Brake resistor
Chopper transistor
Brake resistor current
DC link+
DC link-
DC link measurement
evaluation logic
U
DC link brake resistor on
= DC link voltage threshold for brake resistor on 
(approx. 780 V)
I
brake resistor
= continuous current of the chopper transistor
P
brake resisitor
= brake resistor power
I
max brake resisitor
= maximum permissible brake resistor current of the device 
(see ZElectr
ical data– as from page 58)
I
brake resistor
P
brake resistor
U
DClink chopper resistor on
-------------------------------------------------------=
R
min brake resistor
U
DClink brake resisitor on
I
max brake resisitor
----------------------------------------------------=
Type I
eff
[A]
Typical
motor
ou
tput
[kW]
Continuous
bra
ke resistor
current
[A]
Max.
brake resistor
power
[kW]
Min.
resistor value
[]
BM5031 - - 23.5 18 33
BM5032 - - 23.5 18 33
BM5043 - - 75 58 10.5
BM5044 - - 75 58 10.5