SIEMENS
6/12
Siemens MD 50.8 · 2017
Motor options
Mechanical design
Motor connection and terminal boxes
6
■
Connection, circuit and terminal boxes
(continued)
Motor connection
/Y
Fig. 6/11
Connection circuit diagram, motor connection
/Y
Motor connection Y
Fig. 6/12
Connection circuit diagram, motor connection Y
G_D087_EN_00045
T1 = U1
T2 = V2
T3 = W1
T4 = U2
T5 = V2
T6 = W2
T1 = U
T2 = V
T3 = W
T1 = U
T2 = V
T3 = W
U
V
W
PE
3
M
U
V
W
PE
3
M
U2
V2
W2
PE
U1
V1
W1
3
M
U
L3
L2
L1
PE
[U2,V2,W2]
V
W
U
L3
L2
L1
PE
[U2,V1];
[V2,W1]
[U1,W2];
V
W
-M
U1
W1
V1
W2
U2
V2
-M
U
W
V
-M
U
W
V
U2
W2
V2
U1
W1
V1
1
2
3
5
4
$
Motor connection
%
Circuit diagram symbols
&
Winding arrangement in the motor
(
Comparison:
Terminal designation acc. to NEMA MG1/acc. to IEC 60034-8
)
Location of the jumpers on the terminal board and juxtaposition
of the line connection with the motor connection
G_D087_EN_00044
T1 = U1
T2 = V1
T3 = W1
T4 = U2
T5 = V2
T6 = W2
T1 = U
T2 = V
T3 = W
U
L3
L2
L1
PE
[U2,V2,W2]
V
W
3
U
V
W
PE
M
U
W
V
-M
-M
U1
W2
U2
V2
W1
V1
U2
W2
V2
U1
W1
V1
© Siemens AG 2017