Danfoss VLT MCD 500 Pocket Manual page 41

Star/Delta Starters: Can soft starters be used
to replace star/delta starters?
If the soft starter supports inside delta connection, simply connect
it in place of the star/delta starter.
If the soft starter does not support inside delta connection,
connect the delta connection to the output side of the soft starter.
MCD 500 soft starters include built-in support
for inside delta connection.
Danfoss Drives · DKDD.PB.551.A1.02 | 41