gefran TPD32-EV-...-4B - Inertia;Loss Compensation

—————— Instruction manual ——————
173
6.7.5 Inertia/Loss compensation
n
d
low pass filter
Speed
+
1
To speed regulator
output
T
Speed ref (d)
Ref0level
10 rpm
Inertiacfilter
0ms
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lter[ms]
Parameter description No.
Value
Standard
Conguration
min max
Factory
American
Factory
Standard
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 lter [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identied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
identiedduringthespeedselftune
procedure.(1 Kg*m
2
= 23.73 lb*ft
2
)
Friction Frictionvalue(orLosscompensation)inN*midentied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speciedspeedrange.Thisvalueisidentied
duringthespeedselftuneprocedure(SeeChapter"5.3.5.2Selftuningofthespeed
regulator"onpage123).
Inertia c lter1
st
orderlowpassltertimeconstant.Thelterreducesthenoisevalueowedtothe
operationofthespeeddifferentiationintheInertiacompensationblock.