Woodward MRM4, Manual

Page: 263 / 460

Protective Elements
3. Stop cycle; and
4. Trip state.
Under normal conditions, the motor operations should go through »stop«, »start«, »run«, and »stop« cycles that
are referred to as a complete operation sequence; while under certain abnormal conditions, the motor could go
from »start« to »stop«, or »start« to »trip«, or »run« to »trip«.
If other protection trips occur at either the »start« or »run« cycle, the motor will be forced to go to »trip« mode.
After motor currents are terminated, the motor will go into the »stop« cycle.
Start Control
The parameters for the Start Control have to be set within menu [Protection Para\MStart\StartControl].
EN MRM4 01/11 Page 263