Inertia Comp - Parker 590+ DRV Product Manual

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
INERTIA
The value of current necessary to accelerate load to 100% speed in 1 second.
FILTER
Low pass filter acting on the DELTA parameter.
RATE CAL
Inertia compensation scaling factor.
INERTIA COMP O/P
Inertia compensation directly added to the speed loop output.
UNSCALED OUTPUT
Unscaled inertia compensation.
DELTA
Rate of change of speed demand in %/s
Functional Description
DC590+ DRV Series DC Digital Drive
Tag
556
557
558
602
603
601
2
.
d
SPEED DEMAND
dt
INERTIA
DELTA
UNSCALED OUTPUT
FILTER
INERTIA COMP OUTPUT
RATE CAL
D-69
Programming
Range
0.00 to 200.00
0 to 20000
0.00 to 200.00
⎯.xx %
⎯.xx %
⎯.xx %
to Speed Loop