Operating conditions
Instruction handbook bmaXX 5000
Document No.: 5.09021.19 Baumüller Nürnberg GmbH
48
of 346
3.3
3.3.3 Requirements for the motor
The bmaXX 5000 is designed to operate three phase current motors with a motor termi-
nal voltage of 3 x 350 V (typical for servo motors from Baumüller) or 3 x 400 V (typical for
standard asynchronous motors and for customer-specific special motors from
Baumüller). The motors must be operated in a star connection. The rated DC link voltage
is 540 V
DC
. It can be expected that the DC link voltage increases to up to 780 V or 800 V
in brake operation. The connected motor must be designed to handle these DC link volt-
ages.
If bmaXX 5000 axis units are operated with a voltage-controlled DC link (e.g. BM51XX),
then the DC link voltage will be permanently (not only in brake operation)
between 640 V and 760 V. The connected motor must be designed to be operated at
these voltages in continuous operation.
It is also possible to operate the devices at lower voltages, e.g. 3 x 230 V. A prerequisite,
however, is that the three phase current motors used for operation with converters rated
for an DC link voltage of up to 800 V, as the brake resistor voltage (refer to ZElectrical
data– as from page 60) remains unchanged.
Thus, only three phase current motors with U
DC link, rated
540 V may be used in these
cases as well.
To Next Page
Loading...
