WEG SSW-08 User Manual - page 22
3
Installation and Connection
SSW-08 | 17
3.2.5.1 Standard Three-Wire Connection
Line current of the Soft-Starter SSW-08 is equal to the motor current.
1/U1
4/U2
2/V1
5/V2
6/W2
3/W1
2/V1
5/V2
1/U1
4/U2
6/W2
3/W1
R
S
T
N
PE
T
W
V
S
U
R
T
W
V
S
U
R
R
S
T
N
PE
Figure 3.7: Soft-Starter SSW-08 with standard connection
3.2.6 Grounding Connections
DANGER!
The Soft-Starter must be grounded for safety purposes (PE).
The ground connection must comply with the local regulations. For grounding use
cables with cross sections as indicated in table 3.5. Make the ground connection to
a grounding bar or to the general grounding point (resistance
≤10 ohms).
DANGER!
The AC input for the Soft-Starter SSW-08 must have a ground connection.
DANGER!
Do not use the neutral conductor for grounding purpose. Use dedicated ground
conductor.
ATTENTION!
Do not share the ground wiring with other equipment that operate with high current (for
examples: high voltage motors, welding machines, etc.). When several Soft-Starters
SSW-08 are used, observe the connections in the figure 3.8.