TECO-Westinghouse F510 Series, Instruction Manual

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18-05: FOC (Flux Orient Control) delay time
In the SLV mode, the slip compensation of the magnetic flux depends on the torque current and excitation
current. If the motor load rises above 100% while running at the motor rated frequency, the motor voltage
and resistance drops sharply, which may cause the inverter output to saturate and current jitter occur. The
magnetic flux slip compensation will independently control the torque current and the excitation current to
prevent current jitter. For slow speed or fixed speed operation, 18-05 may be increased. For fast operation
adjust 18-06.
18-06: Slip compensation gain
If the motor is jittering at the rated frequency under full load, the value of 18-06 may gradually be reduced
to zero to reduce current jitter.