Chapter 9 Peripheral Devices
9-5
9.1.3 Dynamic breaking unit (DBU) and Resistors
1) Dynamic Breaking Unit type
Voltage UL form
Capacity of applied
motor
Braking unit
Dimension
s
200V UL type
30 ~ 37 kW SV370DBU-2U
Refer to the
appearance
of Group 2.
45 ~ 55 kW SV550DBU-2U
75 kW SV370DBU-2U, 2Set
400V
Non UL
type
30 ~ 37 kW SV037DBH-4
Refer to the
appearance
of Group 1.
45 ~ 55 kW
SV075DBH-4
75 kW
UL type
30 ~ 37 kW SV370DBU-4U
Refer to the
appearance
of Group 2.
45 ~ 55 kW SV550DBU-4U
75 kW SV750DBU-4U
90 kW SV550DBU-4U, 2Set
110~132kW SV750DBU-4U, 2Set
160kW SV750DBU-4U, 3Set
185~220kW SV2200DBU-4U
Note1)
280~375Kw SV2200DBU-4U, 2Set
2) Terminal arrangement
Group 2:
Group 3:
Term inals Functions
G Ground Terminal
B2 Terminal for connection with B2 of DBU
B1 Terminal for connection with B1 of DBU
N Terminal for connection with N of Inverter
P Terminal for connection with P1 of Inverter
ත Note: READ DBU User manual certainly when selecting DB resistors.
3) Dynamic Breaking (DB)Unit & DB resistor basic wiring
50/60 Hz
U
V
W
G
R(L1)
S(L2)
T(L3)
I
3
P2(+)
P1(+)
P N B1 B2
N(-)
B2
B1
ٻ
N B2 P/B1G
B1 NP G
B2
In
ut Powe
Dynamic Braking
Resistor
Dynamic Braking
Unit
Moto
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