(
r
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Start-Up
and
Adjustments
SECTION
V-
START-UP
AND
ADJUSTMENTS
5.1 Initial Start-Up
Procedure
5.
1.1
Initial Start-Up Procedure (BRU-500)
WARNING
DANGER OF ELECTRICAL SHOCK OR BURN. ONLY QUAUFIED
INDIVIDUALS SHOULD WORK ON THIS EQUIPMENT.
DISCONNECT
All
POWER BEFORE WORKING ON EQUIPMENT.
DANGEROUS VOLTAGES MAY EXIST AFTER POWER IS
REMOVED! CHECK DC
BUS
VOLTAGE EACH TIME POWER IS
REMOVED BEFORE WORKING
ON
THIS EQUIPMENT.
1
.)
Measure voltages at
L1,
l2,
and
L3
phase to phase to insure incoming power is off. Also observe
that green
LED
is off. Remove
PSM
cover.
2.) Disconnect all three phase input wires attached
to
L
1,
l2,
and
L3.
Arrange input wires to safe
position for testing of incoming voltage
levels.
3.) Tum incoming power on and measure phase
to
phase voltages
to
insure that they are balanced
and in the proper voltage range.
4
.)
If incoming power is the correct voltage then turn power off and reconnect the wires
to
L
1,
l2,
and
L3
. Phasing is arbitrary.
5.) Disconnect
all
wires from the
PSM
DC bus studs marked + and
-.
Verify that dissipative shunt
regulator
fuse
is OK. Install the
PSM
cover, then turn on incoming power. Verify that
DC
bus
voltage is in the proper range. Observe that the
PSM
green
LED
is on and that all three red
LEOs
are off. Check that the
PSM
fans are operating.
6.) Disconnect incoming power and observe that the green
LED
goes off within one second and
observe
DC
bus voltage falling
to
less than
15
VDC
within one second.
If
so, then the
PSM
is
working properly.
7.) Remove
PSM
cover. Reconnect the DC bus wires
to
the
PSM
studs marked + and - insuring that
proper polarity is maintained. Install the
PSM
cover.
8.) With incoming power still off, remove
all
DM
covers. Disconnect all motor leads from the
OM
terminals marked
R,
S,
and
T.
Verify with
an
ohmmeter that an open circuit exists between R, S,
and T terminals
of
each
OM
and earth ground.
9.) Verify that
each
OM
has
the correct
PM
installed and that
OM
jumpers are in the desired locations
(see
Figure
5-2
for
PM
location and jumper locations). Install all
OM
covers. Connect all interface
cables
to
the
OMs
.
1 0
.)
Apply incoming power with
all
OMs
inhibited and observe the
OM
LEOs.
The green
LED
should
tum on and remain on while the three
red
LEOs
should turn on for about 1 second and then tum off
and
rema
in off. Check that the
OM
fans are operating.
The
PSM
green
LED
should turn
on
and
remain
on
while the three red
LEOs
should remain off.
BRU-200/ BRU-500 Brushl
ess
Drives Instruction Manual
21
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