26
6. Wiring
■
With Brake. 3-phase motor. 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 cir
cuit
At start
Wiring
MC
M
ON
MC
Δ
OFF
MC ON
When acceleration
is completed
Δ wiring
MC
M
ON
MC
Δ
ON
MC OFF
Con
tr
ol P
anel
M
ot
or
Electromagnetic contactor for normal and reverse rotation
MC: Electromagnetic contactor
OLR: Overload protection device or electronic thermal relay
Customer 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 1-6 on P7.
-Use with a quick braking circuit. For information on electromagnetic contactors for quick braking circuits, see Table 6-4 on P32.
-Shipped with a short circuit plate connecting rectifier terminals 5 and 6. Remove the short circuit plate when wiring.
-For plugging operations, gang the brake circuit’s electromagnetic contactors to the motor’s normal and reverse rotation
electromagnetic contactors
OLR
R
S T
MC
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
OLR
MC
U1 V1 W1 V2 W2 U2
1 2 3 4 5 6
M N
Motor
Rectifier
Brake
Normal rotation
Rev
erse rotation
Normal rotation
Rev
erse rotation
Con
tr
ol P
anel
M
ot
or