AN-TMR-025 - Star-Delta Start Relay
Timing operation of the Star-Delta Start Relay function
AN-TMR-025
25. Star-Delta Start Relay Function:
The star-delta relay function turns on output 1 to energize the star wiring contactor. After the preset time of T1, output one turns off and timer T2 starts. When T2 completes, output two turns on to energize the delta wiring contactor.