Interface Circuitry
20
4.3
Power
Supply
Module
Interface Connector (BRU-500 Only)
Connector
Signal Name
P1 1 .........
..
...................... Status-
2 .......................
....
..
.... Status+
3 .................................
PSM
Enable-
4 .....
...
.
...
..
..
...
.
..
.
...
..
....
.
PSM
Enable+
4.4 Power
Supply
Module
Interface Signal Specifications (BRU-500 Only)
Refer
to
drawing
9101-Q138
for
simplified schematic
of
interface circuitry.
Signal
and
Connector
Signal Type Specification
Status+ ...................
Pl-2
.........................
..
Output ..........
..
..
............ -Normally open relay
Status-.....
..
.
..
........
..
. Pl
-1
-24
VDC
0.4 A
-open relay is
PSM
fault
-c
losed relay is
PSM
OK
Enable+ .............
..
... P1-4
..
..
.
..
...
.............
....
1nput[1] ..........
..
.....
....
..
. -Opto-coupler input
Enable-................
....
Pl-3
-1
.5k Ohms
-16
rnA
(±
6mA) tum-on
current
[1] The
PSM
Enable input is only functional
if
jumper
W1
is in the proper location (see Figure
5.1
).
With the jumper in the enable input activated position, the
PSM
is
enabled
if
the opto-coupler is turned on.
Wrth the opto-coupler off, the
PSM
DC
bus is turned off and the dissipative shunt is turned on
to
quick
discharge the
DC
bus capacitors and dynamically brake synchronous motors.
IF
THE PSM
IS
DISABLED
DURING A POWER-UP, THE DC BUS VOLTAGE WILL BE PRESENT FOR
AT
LEAST 2 SECONDS
BEFORE RETURNING
TO
A ZERO VOLT CONDITION. This is
to
allow time
for
the
OMs
to
power-up and
apply the enable signal
to
the
PSM
if the
PSM
is
to
remain on.
With the jumper in the enable input deactivated position, the enable input has
no
effect
on
the PSM
operation and the PSM activates itself when three phase voltage in the proper voltage range is connected
to
the input. Jumper
W1
is in the enable input deactivated position when shipped from Reliance Motion
Control.
BRU
-200/BRU-500 Brushless
Dr
iv
es Instruction Manual
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