18
6. Wiring
Shows motor wiring and standard specification for terminals and lead wires that are indicated by symbols.
■
Without brake. 3-phase power source
3-phase motor
Premium-efficiency, 3-phase motor
High-efficiency, 3-phase motor
3 lead wires
6 lead wires (direct on-line starting)
Con
tr
ol P
anel
Con
tr
ol P
anel
M
ot
or
M
ot
or
6 lead wires (
‒Δ
starting)
4/8P two speed, single wound rotor (constant torque)
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
When at low
speed
(8P)
MC
L
ON
MC
H1
OFF
MC
H2
OFF
When at
high speed
(4P)
MC
L
OFF
MC
H1
ON
MC
H2
ON
Con
tr
ol P
anel
Con
tr
ol P
anel
M
ot
or
M
ot
or
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.
U1
V1
W1
V2
W2
U2
R
S
T
MC
OLR
Motor
U1 V1 W1 V2 W2 U2
MC
MC
M
OLR
MC
Δ
MC
Motor
S
R
T
1U 1V 1W 2U 2V 2W
MC
L
OLR
L
R
S
T
MC
H1
MC
H2
OLR
H
Motor
U
V
W
R
S
T
MC
OLR
Motor