Delta CT2000 Series User Manual page 383

Chapter 12 Description of Parameter SettingsCT2000 Series
Ad ju st FOC sp ee d estima tio n
Pr 10 -2 5 FO C spe ed ob ser ver
Resp on se to spe ed is to o sl ow
→Incr ea se
A dj ust FO C spe ed esti mati on
P r1 0- 25 FOC sp e ed ob ser ver
No ise of sp ee d is ove r lar ge
→De cre ase
1.Chec k Pr11-01, per-unit of
in ertia is re asona ble or not
2.Dec re ase FO C bandwidth
of speed obse rv er (Pr10-25 )
FOC sensorless control diagram
◎A dvan ced set tings
P arameter ad ju stmen t fo r common
p ro ble ms
Pr10-25 FOC b andwid th of s peed
o bserv er
Pr11-01 per-unit value of inertia
Sp ee d co mman d
ch an ge d rap id ly, can no t
b e fo ll owe d
Large noise of
obs erver c ause
divergence
Inrush current is too la rg e
OCN oc curs during decel.
12.2-00-21