ASDA-B2 Chapter 6 Control Modes of Operation
Revision September 2013 6-11
P2-02 PFG Position Feed Forward Gain
Address: 0204H
0205H
Operation
Interface:
Keypad/Software Communication
Related Section:
Section 6.2.5
Default: 50
Control
Mode:
PT
Unit: %
Range: 0 ~ 100
Data Size: 16-bit
Display
Format:
Decimal
Settings:
This parameter is used to set the feed forward gain when executing position control
command. When using position smooth command, increase gain can improve
position track deviation. When not using position smooth command, decrease gain
can improve the resonance condition of mechanical system.
When the value of Proportional Position Loop Gain, KPP is too great, the position loop
responsiveness will be increased and it will result in small phase margin. If this
happens, the rotor of motor will oscillate. At this time, the users have to decrease the
value of KPP until the rotor of motor stop oscillating. When there is an external torque
command interrupted, over low KPP value will let the motor cannot overcome the
external strength and fail to meet the requirement of reasonable position track error
demand. Adjust feed forward gain, PFG (P2-02) to efficiently reduce the dynamic
position track error.
VARITEL INGENIERIA ELECTRONICA S.A.
info@varitel.com - www.varitel.com - Tel. (54) 11-4243-1171 / Fax: (54) 11-4292-7545
Manuel Baliña 456, Lomas de Zamora (B1832CCJ) Buenos Aires, Argentina.
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