Chapter 3: Component Configuration and Wiring
3–6
DURA
pUlse
Drives Dynamic Braking User Manual – 2nd Ed., Rev.C – 06/14/2019
Dynamic Braking Wiring
Wiring Warnings and Notes
d
o
not
proceed
With
any
Wiring
While
poWer
is
applied
to
the
circuit
,
or
While
the
drive
or
dbu
charge
led(
s
)
are
on
.
t
o
prevent
personal
injury
,
do
not
connect
/
disconnect
Wires
or
regulate
the
setting
of
the
braking
unit
While
poWer
on
. d
o
not
touch
the
terminals
of
related
Wiring
and
any
component
on
pcb
lest
users
be
injured
by
extremely
dangerous
dc
high
voltage
.
c
onfirm
that
the
+(p)
and
-(n)
terminals
of
the
dura
pulse
ac d
rive
are
properly
connected
to
the
dura
pulse
dynamic
braking
unit
With
the
correct
polarity
before
applying
poWer
.
o
therWise
,
the
drive
and
the
braking
unit
could
be
damaged
.
c
onnect
the
braking
unit
ground
terminal
to
e
arth
g
round
. t
he
ground
lead
must
be
the
same
gauge
Wire
or
larger
than
leads
+(p)
and
-(n)
or
dc+
and
dc-.
do not
Wire
terminals
-(n)
or
dc-
to
the
neutral
point
of
the
poWer
system
.
d
uring
braking
,
the
Wires
connected
to
+(p), -(n), dc+, dc-, b1,
and
b2
generate
poWerful
electromagnetic
fields
due
to
high
current
passing
through
. s
eparate
these
Wires
from
other
loW
voltage
control
circuits
to
prevent
electrical
interference
or
improper
operation
.
b
efore
Wiring
the
resistor
(
s
)
to
the
dynamic
braking
unit
(
s
),
check
the
min
.
resistor
values
shoWn
in
the
b
raking
c
omponent
s
election
tables
in
c
h
.1
of
this
user
manual
,
and
make
sure
the
actual
resistance
is
no
less
than
this
value
. d
amage
to
the
dynamic
braking
unit
and
/
or
resistors
and
other
equipment
can
result
if
the
Wrong
resistance
value
is
used
.
f
or
safety
purposes
,
install
an
overload
relay
betWeen
the
dynamic
braking
unit
and
the
braking
resistor
. W
ire
the
overload
relay
normally
closed
contact
in
series
With
the
coil
of
a
magnetic
contactor
to
interrupt
the
poWer
to
the
ac
drive
to
prevent
damage
to
the
braking
resistor
in
the
case
of
excessive
braking
or
unusually
high
input
voltage
.
Summary of Contents for DURA PULSE GS-2DBU
Page 1: ...Dynamic Braking User Manual GS DB_UMW...
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Page 49: ...2nd Ed Rev C 06 14 2019 DURApulse Drives Dynamic Braking User Manual BLANK PAGE...
Page 50: ...DURApulse Drives Dynamic Braking User Manual 2nd Ed Rev C 06 14 2019...
