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Installation/Wiring
1-15
PowerFlex 700S Phase II AC Drive User Manual -
Publication 20D-UM006G-EN-P – July 2008
Dynamic Brake Resistor Considerations
Figure 1.5 External Brake Resistor Circuitry
Terminal
Description
Notes
BR1
DC Brake (+)
Dynamic Brake Resistor Connection (+)
BR2
DC Brake (–)
Dynamic Brake Resistor Connection (–)
DC+
DC Bus (+)
DC Input Power or Dynamic Brake Chopper
DC–
DC Bus (–)
DC Input Power or Dynamic Brake Chopper
PE
PE Ground
Refer to
for location on 3 Frame drives
Motor Ground
Refer to
for location on 3 Frame drives
U
U (T1)
To motor
V
V (T2)
To motor
W
W (T3)
To motor
R
R (L1)
AC Line Input Power
S
S (L2)
AC Line Input Power
T
T (L3)
AC Line Input Power
!
ATTENTION: The drive does not offer protection for
externally mounted brake resistors. A risk of fire exists if
external braking resistors are not protected. External resistor
packages must be self-protected from over temperature or a
circuit equivalent to the one shown below must be supplied.
Power On
R (L1)
S
(L2)
T (L
3
)
Power
S
o
u
rce
DB Re
s
i
s
tor Thermo
s
t
a
t
Power Off
M
M
(Inp
u
t Cont
a
ctor) M
Three-Ph
as
e
AC Inp
u
t