Foc&Tqc Function Control; Foc Bandwidth Of Speed Observer; Foc Minimum Stator Frequency; Foc Low-Pass Filter Time Constant - Delta C2000 series User Manual

1: Mechanical Frequency (base on pole pair)
Reserved
FOC&TQC Function Control
0~65535
Settings
Bit# Description
0 ASR control at sensorless torque
0:use PI as ASR; 1:use P as ASR
1~10 NA
11 Activate DC braking when executing zero torque command
0:ON , 1:OFF
12 FOC Sensorless mode, cross zero means speed goes from negative to
positive or positive to negative (forward to reverse direction or reverse to
forward direction). 0: determine by stator frequency , 1: determine by speed
command
13 NA
14 NA
15 Direction control at open loop status
0: Switch ON direction control 1: Switch OFF direction control

FOC Bandwidth of Speed Observer

Settings 20.0~100.0Hz
Setting speed observer to higher bandwidth could shorten the speed response time but will create
greater noise interference during the speed observation. .

FOC Minimum Stator Frequency

Settings 0.0~10.0%fN
This parameter is used to set the minimum level of stator frequency at operation status. This
setting ensures the stability and accuracy of observer and avoid interferences from voltage,
current and motor parameter.

FOC Low-pass Filter Time Constant

Settings 1~1000ms
This parameter sets the low-pass filter time constant of a flux observer at start up. If the motor can
not be activated during the high-speed operation, please lower the setting in this parameter.
FOC Gain of Excitation Current Rise Time
Settings 33~100% Tr (Tr: rotor time constant)
This parameter sets the drive's excitation current rise time when activates at senslorless torque
mode. When the drive's activation time is too long at torque mode, please adjust this parameter to
Chapter 12 Description of Parameter Settings|C2000 Series
12-155
Factory Setting: 0
Factory Setting:40.0
Factory Setting:2.0
Factory Setting:50
Factory Setting:100