44
※
4
：
Please connect input power source (P,N) of DB unit from the middle D.C. power
2
of the
inverter unit by twist cable. Refer to Table 3-1 of
“
3.2 connection
”
for the size of the use cable and
number of time to twist .
※
5
：
Refer to "3.2 Connection " for notes at the time of wiring.
◎
Paralle operation
Inverter Operation command
M
U VW
SHT
OCRY
MCCB
MC
R S T
52MAX
1
2
1
2
3
4
5
6
8
9
7
P
PR
N
OCRY
DBR
CN2
CN3
400V
200V
TH
8 8 8
TB2
DB_IN
DB_ON
86A
52MA
1
2
3
4
5
6
8
9
7
P
PR
N
OCRY
DBR
CN2
CN3
400V
200V
TH
8 8 8
TB2
DB_IN
DB_ON
86A
52MA
VF66B INVERTER UNIT
30
～
55kW:2
parallels or less
75kW or more:2
parallels or less
DC
L
※
CN1
DBIF2009-Z
CN2 or CN3
※
DBIF2009-Z
CN2 or CN3
1
4
1
4
1
4
1
4
VF66B INVERTER
UNIT
(30kW or more)
400V Line
at
400V/200V
Transfomer
Inverter Operation
Contact (52MA)
RUNNING SIGNAL
D.C. Busbar
DB Unit
DB Voltage
DC/DC
Converter
Slave
Master
Protection
DB Operation
DB Unit
DB Voltage
DC/DC
Converter
Slave
Master
Protection
DB Operation
Core
(2turns or more)
Core
(2turns or more)
Figure 7.14 Example of connection diagram at the time of single operation
(At the time of communication option PC board application)
※
1
：
Change the connector on DB unit according to the voltage system of an inverter. Refer to "5.2.1
Change of power supply voltage" for details.
※
2
：
Wiring of VF66 inverter should follow the instructions manual of inverter each model.
※
3
：
Inside of a figure 3 of a part
of the connection example wires for the twist. Please lay out the
equipment to shorten as much as possible and wire for wiring. If the twist line is not used, the
surge voltage is by the twice or more. there is a possibility of damaging the unit.
※
4
：
Refer to Table 3-1 of
“
3.2 connection
”
for the size of the use cable of the input power source (P,N) of
DB unit.
※
5
：
Refer to "3.2 Connection " for notes at the time of wiring.
Summary of Contents for VFDB2009 Series
Page 1: ...VFDB2009 Operation Manual...
