17
These should be supplied by the customer.
MC: Electromagnetic contactor
OLR: Overload protection device or electronic thermal relay
6-3) Motor Connection
Shows the motor connection and the standard specifications for terminal codes.
Fig.29 Without brake, 3-phase power source
Note : This drawing shows for a motor based on standard specification for domestic market.
Motor based on overseas standard shall be referred to us.
In a case of three lead wires In a case of six lead wires (Star(Wye)-Delta connection)
Star connection
for starting
MC
M
ON
MC
OFF
MC
ON
Delta connection
after starting
MC
M
ON
MC
ON
MC
OFF
In a case of six lead wires
(Direct starting of Star(Wye)-Delta connection)
4/8-Pole, 2-step speed single coil
-
Constant torque
-
For slow speed
(8P)
MC
L
ON
MC
H1
OFF
MC
H2
OFF
For high speed
(4P)
MC
L
OFF
MC
H1
ON
MC
H2
ON
U1
MC
M
OLR
R S T
V1 W1 V2 W2 U2
MC
ٌ
MC
Motor
Y
R S
T
MC
OLR
U V W
Motor
Control panel
Terminal box
Control panel
Terminal box
1U 1V 1W 2U 2V 2W
MC
L
OLR
R S T
MC
H1
MCH2
OLR
Motor
R S
T
MC
OLR
V2
W2
U2
U1 V1 W1
Motor
Control panel
Terminal box
Control panel
Terminal box
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