r
Introduction
A standard RS-232/RS-422 serial interface is
used
to modify tuning, change limit values,
or
monitor
variables/status in the BRU-Series
dr
ive modules. Any changes made through the serial interface
can
then
be
stored in the
PM.
A VT-52 compatible serial terminal is required for the easy-to-use menus.
Refer to Secti
on
5.2.3.1 for user terminal requirements. Alternatively, a multi-drop host mode
communication protocol is also available for direct connection to computer hosts. Refer to Section
5.2.3.3.
1.2.3 Motors and Encoders
A wide range
of
Electro-Craft S-Series and F-Series permanent magnet synchronous motors
and
1-
Series induction motors are available for use wi
th
BRU-Seri
es
dr
ives. Each motor includes
an
internally
mounted encoder. The BRU-Series also provides the encoder signals for the position controller
to
use
for the most economical system. Most motors are available with optional spring-set brake, optional
shaft oil seals, and/or optional fanpack. The synchronous motors have a rear shaft available for
mounting optional feedback devices.
1.2.4 Transformers
Multi-tap three phase isolation transformers are available in a variety of power ratings for line voltage
matching for the BRU-500. A multi-tap single phase isolation transformer is available for line voltage
matching for the BRU-200.
1.2.5 Auxiliary Power Supply
An
auxiliary power supply module (PSM-AUX) is available to supply DC power to the logic supplies
of
up to four DMs
if
the PSM is turned off. The PSM-AUX uses single phase 115 VAC power as the input.
The PSM-AUX option
is
used
if
DM
logic power must stay
on
even when the motor supply (the PSM)
is
turned off. Absolute positioning with PRO-Series controller kits is
one
example where the PSM-AUX
would
be
used
. Another example would be maintaining DM logic power
so
that the DM serial interface
could
be
used for trouble-shooting and diagnostics. See drawing
91
01-0134 in Section X for additional
information
on
use
of
the PSM-AUX
and
the optional PSM-AUX isolation transformer.
The auxiliary power supply is built into the BRU-200 drive modules
as
standard equipment. See
drawing
91
01-1329 in Section X for additional
in
formation.
BRU
-200/BRU-500 Brushless D
ri
ves Instruction Manual 3
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