Parker AC890PX Series, Engineering Reference

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D-56
A p p e n d i x D : P r o g r a m m i n g
AC890PX AC Drive
Parameter Descriptions
SEARCH VOLTS PREF: 69.04 Default: 9.00 % Range: 0.00 to 100.00 %
The percentage level of the search volts applied to the motor during the speed search phase of the flycatching sequence. Increasing this parameter
improves the accuracy of the discovered motor speed but increases the braking influence of the speed search on the rotating motor.
SEARCH BOOST
PREF: 69.05 Default: 40.00 % Range: 0.00 to 50.00 %
The level of search boost applied to the motor during the speed search phase of the flycatching sequence.
SEARCH TIME PREF: 69.06 Default: 5.0 s Range: 0.1 to 60.0 s
The search rate during the speed search phase of the flycatching sequence. Performing the flycatching speed search too quickly can cause the drive
to inaccurately identify the motor speed. Refluxing at an inaccurate motor speed can cause the drive to trip on overvoltage. If this occurs, increasing
this parameter will reduce the risk of tripping.
MIN SEARCH SPEED PREF: 69.07 Default: 5.0 Hz Range: 0.0 to 500.0 Hz
The lowest search speed before the speed search phase of the flycatching sequence is considered to have failed.
REFLUX TIME PREF: 69.08 Default: 3.0 s Range: 0.1 to 20.0 s
The rate of rise of volts from the search level to the working level after a successful speed search. Refluxing the motor too quickly can cause the
Drive to trip on either overvoltage or overcurrent. In either case, increasing this parameter will reduce the risk of tripping.
ACTIVE PREF: 69.13 Default: FALSE Range: FALSE / TRUE
A diagnostic output indicating whether the flycatching sequence is active.
SETPOINT PREF: 69.14 Default: —.xx % Range —.xx %
This diagnostic output is the setpoint caught at the end of a successful flycatching sequence.