Parker AC30 series - Power Loss Ride Thru

C-150 Parameter Reference
AC30 series Variable Speed Drive
Power Loss Ride Thru
Parameters::Motor Control::Power Loss Ride Thru
The block controls the behaviour of the drive during a power outage.
When enabled, the drive attempts to keep the dc link high by regeneratively recovering the kinetic energy in the motor load in the event of a main
power supply loss.
Parameter Name
No.
Path
Default
Range
Units
Writable
Pwrl Enable
1645
Parameters::Motor Control::Power Loss
Ride Thru
FALSE
STOPPED
Enable the Power Loss Ride Through feature.
Pwrl Trip Threshold
1646
Parameters::Motor Control::Power Loss
Ride Thru
52.0 20.0 to 60.0 %
STOPPED
Determines the dc link volts at which the Power Loss Ride Through sequence is triggered.
% of the max dc link voltage ( drive overvoltage level = 100% )
Pwrl Control Band
1647
Parameters::Motor Control::Power Loss
Ride Thru
2.0 0.0 to 20.0 %
STOPPED
Determines the band while the speed setpoint is ramped down.
% of the max dc link voltage ( drive overvoltage level = 100% )
Once the dclink falls down below Pwrl TripThreshold, the speed septoint is ramped to zero until the dc link rises above Pwrl trip
Threshold + Pwrl Control Band.
Then the speed septoint is hold, waiting either to continue ramping down if the dc link is still moving down or ramped back to the speed
septoint if the supply returns.
Pwrl Accel Rate
1648
Parameters::Motor Control::Power Loss
Ride Thru
100 1 to 500 Hz/s
STOPPED
Rate in Hz/s ( electrical frequency/ second) at which the speed septoint is ramped back to the speed demand