WEG CFW-11 Guia De Instalacion página 10

OPTIONAL
DC+ DC-
External
braking
module
Braking
resistor
DC+ BR
PE
R
S
T
Power supply
Line reactor (1)
Disconnect
switch
Fuses Line reactor
(1)
(1) For frame size H other models, two line reactances are required with minimum voltage drop of
3 % under rated condition of the inverter.
∆V [%] . V [V]
L = 919 .
LL [μH]
f [Hz] . I [A]
R
ΔV = Percentage voltage drop. VLL = Inverter supply line voltage. fR = Line frequency.
I = Reactor current. Consider half the inverter input current for each reactor and an unbalance of
15 %. For example, in model 1141 A, the maximum current of each reactor is 1.15 (1141/2) = 656 A.
Figure 15: Models with AC power supply (IP20 degree of protection) -
frame size H - except models 584T6 and 625T6
R/L1 S/L2 T/L3 DC- BR DC+ U/T1 V/T2 W/T3
(a) Frame sizes A, B and C
R/L1 S/L2 T/L3 DC- BR DC+ U/T1 V/T2 W/T3
(b) Frame size D
(4 x M8, 4 x M5)
(c) Frame size E
Figure 16 (a) to (c): Power and grounding terminals frame sizes A, B, C, D
and E
DC- DC+
R1 R2 S1 S2 T1 T2 U V W PE W V
Shielding
Ground
U
(a) Frame sizes F and G
(b) Frame size H
(c) Special Hardware DC
Figure 17 (a) to (c): Power and grounding terminals sizes F, G and H
Installation Guide
Ground
Ground
DC-
DC+
CFW-11 | 11