INVT RBU100H, Operation Manual, Page: 16 / 33

RBU100H operation manual 4 Installation guidelines
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2) Select P0.00=1 (terminal control);
3) Set as manual mode (S2 valid).
R
S
T
U
V
W
R
S
T
R
S
T
r
s
t
S1
S2
S3
S4
COM
24V
S1
S2
S3
S4
COM
24V
Y
COM
M
Power supply
VFD
RBU
Input filter
Input
reactor
Regenerative
reactor
Regenerative
reactor
RBU
Master Slave
PE
CN9
AO
GND
ROB
ROA
ROC
Y
COM
CN9
AO
GND
ROB
ROA
ROC
PE
r
s
t
PE
(+) (-)
(+) (-) (-) (+)
PE
It is recommended to
use fuse It is
recommended
to use fuse
Figure 4-7 Parallel connection 1 of RBU100H
Connection instruction: make the first RBU as the master and others as the slave in parallel
connection. Connect the Y and COM terminal of the first RBU to the S2 and COM terminal of the
second one, third one and so on.
Note:

RBU 380V 22kW
–45Kw has internal output reactor. RBU 380V 55kW–250kW/660V
55kW
–400kW has standard output reactor.

Each RBU100H has 1 standard input reactor. Select the input reactor according to the rated
parameters of the VFD.

The input filter is optional. Select the input filter according to the rated parameters of the VFD.

The fuse is optional. Configure the fuse at 1.5 times of the rated current of the RBU.

Derate 90% of the RBU100H in parallel connection.