Lenze i950

7.12.1 Idenfying the constant moment of inera
Precondion
The parameter Momen
t of inera idencaon - max. velocity, is used to dene the maxi-
mum motor speed in [%] with reference to the maximum achievable winder speed Winder
reference speed at dmin.
Parameters for the moment of inera:
•
Momen
t of
inera idencaon - max. velocity 40x5051:115
•
Winder reference speed at dmin 40x5051:010
J = f(n,M)
M
n
0x5051:113
0x6077:000
0x5051:114
Id.M-inertia:PT1 filt.tim.torq
Torque actual value
Id.M-inertia:PT1 filt.tim.sped
Velocity actual value
0x606C:000
0x5051:118
Meas. moment of inertia
0x5051:111
Constant moment of inertia
0x5051:112
Max. moment of inertia
Fig. 54: Dialogue overview "Inera detecon"
Speeds between 50 ... 60 % of the value specied in the parameter Momen
t of
inera
idencaon - max. velocity are sucient. 40x5051:115
The
acceleraon torque is congured with the parameter Moment of inera idencaon -
max. torque. 40x5051:116
The value must be greater than the maximum occurring
fricon. The manufacturer recom-
mends seng the value to 25 [%]. The moment of inera is determined with a rising FALSE/
TRUE edge ↗ at parameter Idenfy moment of inera or Control signal bit 31.
•
Idenfy moment of inera 40x5051:117
•
Control signal 40x5050:010 bit 31
The moment of inera idened is displayed in the parameter Measur
ed moment of inera.
40x5051:118
During the idencaon run, the winding sha is accelerated and braked at the
congured parameters.
The control stability of the drive as well as the resoluon of the actual speed and actual tor-
que ar
e included in the calculaon result of the idencaon of the moment of inera. A
ltering of the current values frequently improves the constant gradient of the idened char-
acterisc.
•
Momen
t of
inera idencaon - velocity lter me40x5051:113
•
Moment of inera idencaon - torque lter me40x5051:114
Relevant parameters of other funcons
Address Designaon Default seng Seng range
0x5051:113 Moment of
inera idencaon - velocity lter me 0.010 s 0.001 ... 10.000 s
0x5051:114 Moment of inera idencaon - torque lter me 0.005 s 0.001 ... 10.000 s
0x5051:115 Moment of inera idencaon - max. velocity 20.00 % 1.00 ... 100.00 %
0x5051:116 Moment of inera idencaon - max. torque 20.00 % 1.00 ... 100.00 %
0x5051:117 Idenfy moment of inera 0
0x5051:118 Measured moment of inera - (Read only)
Conguring the "Winder Dancer" TA
Idenfying moments of inera
Idenfying the constant moment of inera
136