Motive DELPHI series, Technical Manual

Page: 31 / 74

Technical Manual delphi series motors rev.14 page 31 of 74
ATDC brakes are DC brakes
power supplied by a rectifier
installed inside the motor main
terminal box.
The performance of all brakes, in
terms of Watt, Nm and speed in
mSec are shown in motive web-
site
www.motive.it .
The following tablechart shows the tensions on the rectifier and the brake of ATDC model
Type
input voltage on
rectifier [Vac]
output voltage
to brake [Vdc]
ATDC 63-100 220-280 99-126
ATDC 112-280 380-480 171-216
Unless there’s a different request of the client, motive supplies ATDC brake motors with the
rectifier already connected directly to the main terminal block of the motor (fig. 1, 2, 3 and 4),
in order to permit to the motor switching to act at the same time on the brake.
The rectifier cannot be power-supplied by frequency inverters or soft-start devices
In case that the motor is power supplied by a frequency inverter (fig. 5a and 5b), or at a
special voltage*, or at a low tension during the start, or in case that the motor is used to move
loads which can have an inertial movement, like lifted weights (such inertial movement can
move the motor when the power is switched off, and
the motor can act like a generator on the rectifier
avoiding the brake locking), disconnect the motor
main terminal board from the rectifier, and connect
separately the rectifier (ATDC) (fig. 5a, 5b, 6 and 7).
TA special rectifier permits to solve the problem of
inertial movements with no need for a separate
power supply to the rectifier (fig 3 and 4)