Delta Connection - Eaton DS7 Manual

2.11.3 Delta connection

For clockwise rotation, connect the motor and the DS7 soft starter to each
other as follows:
Table 9: Connection of Soft starters and motor
Supply system Soft starter input
(Mains) (Input)
L1 1L1
L2 3L2
L3 5L3
PE (polyethylene) in size 3 and size 4
only: PE, 
The motor's direction of rotation can be reversed with the DS7 soft starter
if the soft starter is used together with a reversing contactor combination.
When reversing the operating direction, the output of the soft starter must
be disabled before the reverse switching is carried out. The rotating field
direction at the input will always match the rotating field direction at the
soft starter's output (￫ chapter 7, "Connection examples").
￫
Using inside-the-delta wiring, also referred to as a six-wire
connection (soft starter thyristors in series with the individual
motor windings and with six connection cables), is not
permissible when using a two-phase controlled DS7 soft starter!
DS7 Soft starter 09/16 MN03901001Z-EN www.eaton.com
Soft starter output Motor
(Output) (Motor)
2T1 U1
4T2 V1
6T3 W1
in size 3 and size 4
only: PE,  PE, 
2 Engineering
2.11 Motor connection
43