WEG CFW-11W G2 RB Series, Руководство пользователя

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Installation and Connection
CFW-11W G2 | 3-15
3
Stop
KT1 KA2
KA2
KA1
KA1
KA1
KA2 KPCR
KPCR
CC11 (DO1)
220 Vac
external
K1 RT1
A1 A1 A1
21 14 14
13 13
11
15
12
16
44
XC1:22
XC1:22 XC1:23
18 14
13
12
11
43
43
44
21
22 22
A1 A1
A2 A2 A2 A2 A2
+RC +RC +RC +RC
KA2
S
off
S
on
K1
R
KPCR
DC+
DC-
U
V
W
Rectifier UP11 G2
Motor
Line
L
line
Figure 3.17: Example of a pre-charge activation circuit
The Input Rectifier of the CFW-11W G2 can be supplied via contactor or motorized circuit breaker (represented
by K1), and its command must be interlocked with the command of the KPCR pre-charge contactor.
Figure 3.17
on page 3-15 shows an example of a pre-charge circuit recommended for the CFW-11W G2 inverter, with the
simplified power and control diagrams. The digital relay output DO1 of the CC11 board must be configured with
the “Pre-Charge OK” function (P0275 = 25). This relay must be used to command the pre-charge contactor and
the main contactor (motorized circuit breaker). In addition, the duration of the pre-charge must be timed to protect
the components of the auxiliary circuit (resistors, contactor). This function is performed by a timing relay with on-
delay, represented in
Figure 3.17 on page 3-15 by RT1.