GE Industrial Solutions DV-300 DC Drive Users Manual - Manual (Page 166)

GEI-100332Ga
——— FUNCTION DESCRIPTION ———
6
38
6.7.5 Inertia/Loss compensation
n
d
low pass filter
Speed
+
1
To speed regulator
output
T
Speed ref (d)
Ref 0 level
10 rpm
Inertia c filter
0 ms
Field
Inertia
0.005 Kg*m*m
Friction
0.001 N*m
Torque const
Aux spd fun sel
Figure 6.7.5.1: Inertia/Loss compensation
SPEED REGULAT
Inertia/loss cp
[1014] Inertia [kg*m*m]
[1015] Friction [N*m]
[1013] Torque const [N*m/A]
[1012] Inertia c filter [ms]
Parameter description No.
Value
Standard
Configuration min max
Factory
American
Factory
European
Inertia [kg*m*m] 1014 0.001 999.999 S S
Friction [N*m] 1015 0.000 99.999 S S
Torque const [N*m/A] 1013 0.01 99.99 S S
Inertia c filter [ms] 1012 0 1000 0 0
Speed regulator feedforward term that allows to increase the dynamic response to a speed reference variation.
These parameters are identified from the Speed self tune function (START UP\Speed self tune and SPEED
REGULAT\Self tuning) but they can also be set from the user.
This function is mutually exclusive to the Speed up function, This selection must be done via the Aux spd fun
sel [1016] parameter. (SPEED REGULAT menu). See section 6.7.1, Speed regulator.
Inertia Total Inertia value at the motor shaft in Kg*m 2 identified during the speed self tune
procedure. (1 Kg*m 2 = 23.73 lb*ft 2 )
Friction Friction value (or Loss compensation) in N*m identified during the speed self tune
procedure. (1 N*m = 0.738 lb*ft)
Torque const Total torque constant value internally computed that allows to obtain the N*m/A conver-
sion when the motor operates within the specified speed range. This value is identified
during the speed self tune procedure.
Inertia c filter 1 st order low pass filter time constant. The filter reduces the noise value owed to the
operation of the speed differentiation in the Inertia compensation block.