Wolf KGW Series Installation And Maintenance Instructions Manual page 14

Wiring for single-speed drive
Motors up to 2.2 kW usually have direct startup,
whereas a star-delta circuit is usual as of 3 kW.
Wiring of the winding phases
Wiring at terminal board
Delta circuit
Wiring for two-speed drive
(2 separate windings)
For example, for 1000/1500 rpm or 750/1000 rpm
Low speed
Contactor control
Wiring for two-speed drive with 1:2 ratio
(Dahlander winding)
For example, for 1500/3000 rpm or 750/1500 rpm
Low speed
Match the winding layout for multi-speed output to a torque curve for
fan-drive configurations
Contactor control
14
Connecting to electricity supply
The ends of the three
winding phases connect to
the Y/delta switch
Y/delta switch
Y-circuit
High speed
Pole changer
High speed
Pole changer
Wiring for three-speed drive
(2 separate windings, 1 is a Dahlander winding)
For fan drives with speeds of 500/1000/1500 rpm or
8/6/4-pole; 500/1000 rpm with Dahlander winding.
500 min -1
1000 min
Winding configuration
Contactor control
Wiring for three-speed drive
(2 separate windings, 1 is a Dahlander winding)
For fan drives with speeds of 750/1000/1500 rpm or
8/6/4-pole; 750/1500 rpm with Dahlander winding.
Winding configuration
Contactor control
-1 1500 min -1
Pole changer
or
Pole changer