D-66 Programming 590 Series DC Digital Drive
INERTIA COMP
This function block directly compensates for load inertia during acceleration.
This is particularly useful in high accuracy applications such as positioning systems and elevators.
The block calculates its output at the same rate as the current loop for maximum performance.
INERTIA COMP
Parameter Tag Range
INERTIA 556 0.00 to 200.00
The value of current necessary to accelerate load to 100% speed in 1 second.
FILTER 557 0 to 20000
Low pass filter acting on the DELTA parameter.
RATE CAL 558 0.00 to 200.00
Inertia compensation scaling factor.
INERTIA COMP O/P 602
⎯.xx %
Inertia compensation directly added to the speed loop output.
UNSCALED OUTPUT 603
⎯.xx %
Unscaled inertia compensation.
DELTA 601
⎯.xx %
Rate of change of speed demand in %/s
2
.
Functional Description
to Speed Loop
INERTIA
d
SPEED DEMAND
dt
DELTA
FILTER
UNSCALED OUTPUT
INERTIA COMP OUTPUT
RATE CAL
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