28
29
6. Wiring
■
With Brake, 3-Phase Power Source, Plugging Operation
3-phase motor
Premium-efficiency, 3-phase motor
FB-05A1
FB-1D, FB-1E - FB-5E
5 Lead Wires
Nor
mal Br
ak
ing C
ircuit
Q
uick Br
ak
ing C
ircuit
Electromagnetic contactor for normal and reverse rotation
MC : Electromagnetic contactor
OLR : Overload protection device or electronic thermal relay
VR : Varistor (for protecting contact points, rectifier, etc.)
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.
- Brake action delay time is different between normal and quick braking circuits.
Table 7-2 on P39 shows action delay time. Choose the circuit that matches work requirements.
- Use a quick braking circuit to improve hoisting equipment and stopping precision.
- Use a quick braking circuit When a phase-advancing capacitor is mounted.
- For information on electromagnetic contactors and varistors for quick braking circuits, see Table 6-4 on P37.
- For plugging operations using a quick braking circuit, interlock the brake circuit’s electromagnetic contactors with the motor’s normal
and reverse rotation electromagnetic contactors.
U
V
W
1 2 4
M N
Rectifier
Brake
U
V
W
1 2 4
M N
Rectifier
Brake
U
V
W
M N
Brake
U
V
W
1 2 3 4
M N
Rectifier
Brake
Motor
VR
Motor
MC
MC
1 2 3 4
Rectifier
R S
T
Reverse
rotation
Normal
rotation
OLR
R S
T
Reverse
rotation
Normal
rotation
OLR
Motor
R S
T
Reverse
rotation
Normal
rotation
OLR
VR
Motor
R S
T
Reverse
rotation
Normal
rotation
OLR
Co
nt
ro
l P
an
el
M
ot
or
Co
nt
ro
l P
an
el
M
ot
or
Co
nt
ro
l P
an
el
M
ot
or
Co
nt
ro
l P
an
el
M
ot
or