30
31
6. Wiring
■
With Bbrake, 3-Phase Power Source, Plugging Operation
Premium-efficiency, 3-phase motor
FB-20, FB-30
8 Lead Wires
Direct On-Line Starting
‒Δ
Starting
Q
uick Br
ak
ing C
ircuit
wiring
at start
MC
M
ON
MC
Δ
OFF
MC ON
Δ wiring when
acceleration is
completed.
MC
M
ON
MC
Δ
OFF
MC OFF
Electromagnetic contactor for normal and reverse rotation
MC : Electromagnetic contactor
OLR : Overload protection device or electronic thermal relay
Customer needs to prepare.
- This diagram shows cases for motors with standard Japanese domestic specifications. Please consult with us for motors with overseas
specifications.
- For brake types, see Table 1-1 on P5.
- Use with a quick braking circuit. For information on electromagnetic contactors for quick braking circuits, see Table 6-4 on P37.
- Shipped with a short circuit plate connecting rectifier terminals 5 and 6. Remove the short circuit plate when wiring.
- Interlock the brake circuit’s electromagnetic contactor with the motor’s electromagnetic contactor.
OLR
R
S
T
MC
Normal rotatio
n
Reverse rotation
U1
V1 W1
V2 W2 U2
1 2 3 4 5 6
M N
Rectifier
Brake
Motor
MC
M
MC
Y
R S T
MC
Δ
Normal rotation
Reverse rotation
OLR
MC
U1 V1 W1 V2 W2 U2
1 2 3 4 5 6
M N
Motor
Rectifier
Brake
Co
nt
ro
l P
an
el
M
ot
or
Co
nt
ro
l P
an
el
M
ot
or