ABB UMC100.3 - Page 81

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Timing Diagram for Star-Delta Starter
RUN FORWARD
OFF
RUN FORWARD
OFF
Start Stop
YD starting time
pause time ~ 20 ms
Checkback
Commands
(received
telegram)
UMC
outputs
Monitoring
signals
(telegram)
DO0 (star)
DO1 (delta)
Motor current /
Aux. contact
DI0 (aux. contact)
DO2 (main)
2CDC 342 025 F0209
81
CONFIGURING THE MOTOR MANAGEMENT FUNCTIONS