Parker AC30 series, Manual

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Parameter Reference
C-127
AC30 series Variable Speed Drive
PMAC Flycatching
Parameters::Motor Control::PMAC Flycatching
Only available if PMAC MOTOR selected in Control Mode.
This block 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
PMAC Flycatching Enable
0689 Parameters::Motor Control::PMAC
Flycatching FALSE ALWAYS
Enable the flycatching for PMAC motor
PMAC Fly Search Mode 0690
Parameters::Motor Control::PMAC
Flycatching
0 Same as PNO 312
ALWAYS
The PMAC Flycatching sequence can be triggered by different starting conditions:
ALWAYS: All starts (after controlled or uncontrolled stop, or after a power-up)
TRIP or POWER-UP: After uncontrolled stop, i.e. trip or coast, or after a power-up
TRIP: After uncontrolled stop, i.e. trip or coast
PMAC Fly Search Time 0691
Parameters::Motor Control::PMAC
Flycatching
0.200 0.100 to 60.000 s
ALWAYS
PMAC Fly Search Time to catch the right speed
PMAC Fly Load Level 0692
Parameters::Motor Control::PMAC
Flycatching
5.0 -50.0 to 50.0 %
ALWAYS
PMAC Fly Load Level during fly catching
PMAC Fly Active 0693
Parameters::Motor Control::PMAC
Flycatching NEVER
Diagnostic to show if the PMAC fly catching is active or inactive