Operating requirements
Instruction handbook
b maXX
BM5500, BM5600, BM5700
Document No.: 5.13008.10
Baumüller Nürnberg GmbH
52
3.3
3.3.3
Motor requirements
b maXX
BM5500, BM5600, BM5700
is designed to operate three-phase current motors
with a terminal motor voltage of 3 x 350 V (typical for servo motors of Baumüller).
b maXX
BM5500, BM5600, BM5700
is designed to operate 3 x 400V (standard asynchronous
motors and customer-specific motors of Baumüller). The motors must be operated wye-
connected. The nominal DC link voltage is 540 V
DC
. The DC link voltage may rise up to
780V to 800V in braking operation. The connected motor must be designed for these DC
link voltages.
The DC link voltage remains between 640V and 760V continuously (not only in the brak-
ing operation) if the
b maXX
BM5500, BM5600, BM5700
power modules are operated at
a voltage-controlled DC link (e.g. BM51XX). The connected motor must be able to oper-
ate at these voltages continuously.
The device can be used at lower voltages, also (e.g. 3 x 230 V). However, here, the three-
phase current motors must be released for the operation with power inverters with up to
800V DC link voltage, because the brake resistor threshold remains (refer to
from page 61). For these reasons three-phase motors with
U
DC,nom
540 V must be used, only.