45
Instruction handbook
b maXX
5800
Document No. 5.16027.04
4
D
ESIGN
AND
O
PERATION
4.1
Design
The
b maXX
5000
series consists of an (active) mains rectifier unit and one or more axis
units, double axis units or multi-axis controllers. The possible number of axis units and
multi-axis controllers depends on the connected load of the DC link of the mains rectifier
unit.
b maXX 50XX
Mains rectifier unit
This is a mains rectifier unit for supplying multi-axis controllers BM5800 and other axis
units via the DC link.
The applied AC voltage at the three phase power system is transformed by a rectifier on
the input side into DC voltage. The DC link capacitors smooth this DC voltage.
b maXX 51XX
Active mains rectifier unit
This is an active mains rectifier unit for supplying multi-axis controllers BM5800 and other
axis units via the DC link.
The applied AC voltage at the three phase power system is transformed by a rectifier on
the input side into DC voltage. The DC link capacitors smooth this DC voltage. The active
mains rectifier unit can feed back excess braking energy into the mains as sinusoidal
electrical current.
b maXX 53XX
Single axis unit safety, double axis unit safety
This is a motor inverter that is supplied from a mains rectifier unit or active mains rectifier
unit via the DC link.
From the DC voltage at the DC link, the inverter on the output side produces a three-
phase current system with variable frequency and voltage for operation of the connected
motor.
NOTE!
Correct operation of the
b maXX
axis units
BM53XX
can only be ensured in combi-
nation with Baumüller
mains rectifier units
BM50XX, BM51XX
or
basic units
BM4XXX
/
BM5XXX
.