Parker AC30 - Flycatching

D-78 Parameter Reference
AC30 series Variable Speed Drive
Flycatching
Parameters::Motor Control::Flycatching
Only available if IM MOTOR selected in Control Mode
This feature performs a directional speed search. It allows the Drive to seamlessly catch a spinning motor before controlling the motor to the desired
setpoint. This is especially useful for large inertia fan loads, where drafts in building air ducts can cause a fan to `windmill’.
Parameter Name
No.
Path
Default
Range
Units
Writable
VHz Flying Start Enable
0310
Parameters::Motor Control::Flycatching
FALSE
ALWAYS
Enable flycatching in V/Hz control mode when TRUE
VC Flying Start Enable
0311
Parameters::Motor Control::Flycatching
FALSE
ALWAYS
Enable flycatching in Vector control mode when TRUE
Flying Start Mode
0312
Parameters::Motor Control::Flycatching
0
0:ALWAYS
1:TRIP OR POWER UP
2:TRIP
ALWAYS
Mode of operation - V/Hz control
Search Mode
0313
Parameters::Motor Control::Flycatching
0
0:BIDIRECTIONAL
1:UNIDIRECTION
ALWAYS
The type of speed search carried out by the flycatching sequence.
Search Volts
0314
Parameters::Motor Control::Flycatching
9.0
0.0 to 100.0
%
ALWAYS
Only under VHz control
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.