WEG ECW500, User Manual

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Startup .
70 | ECW500
8. Check the dynamic response of the limiter and make the necessary adjustments. After the adjustments, set
the high and low levels desired in LTOC to normal operation, beyond its time to actuation.
LTOC High level: __________________
LTOC Low level: __________________
LTOC Time to actuation: ___________________
9. Configure the reactive mode chosen to generate the minimum reactive possible. Configure the excitation
undercurrent limiter (LEUC) by entering the active and reactive power curve of the machine provided by the
manufacturer (PxQ curve). The curve must be composed of five active power points and five reactive power
points. Adjust the reference of the reactive mode chosen for a negative value, so that the synchronous
machine starts to absorb reactive. Continue to vary the reference until the limiter becomes active.
Point 1: Active power: __________________ Reactive power: __________________
Point 2: Active power: __________________ Reactive power: __________________
Point 3: Active power: __________________ Reactive power: __________________
Point 4: Active power: __________________ Reactive power: __________________
Point 5: Active power: __________________ Reactive power: __________________
Result: _____________________________________________________________________________
10. Check the dynamic response of the limiter and make the necessary adjustments.
Kp LEUC: _____________________
Ki LEUC: _____________________
11. Adjust the reference of the online mode chosen for normal operation.
Reference (MPFC or MRPC): _____________________