ASDA-A2  Chapter 6  Control Mode of Operation 
Revision February, 2017  6-33 
 
 Relevant description of semi-auto mode setting: 
1.  When the system inertia is stable, the value of P2-33 will be 1 and 
the system stops estimating. The inertia value will be saved to P1-
37 automatically. When switching mode to semi-auto mode (from 
manual or auto mode), the system starts to estimate again. 
2.  When the system inertia is over the range, the value of P2-33 will 
be 0 and the system starts to estimate and adjust again. 
 
Manual Mode 
When P2-32 is set to 0, users can define Speed Loop Gain (P2-04), Speed Integral Compensation 
(P2-06) and Speed Feed Forward Gain (P2-07). Influence of each parameter is as the followings. 
Proportional gain: To increase proportional gain can enhance the response frequency of speed 
loop. 
Integral gain: To increase the integral gain could increase the low-frequency stiffness of speed loop, 
reduce the steady-state error and sacrifice the phase margin. The over high integral gain will cause 
the instability of the system. 
Feed forward gain: Diminish the deviation of phase delay. 
 
Relevant parameters: 
P2-04    KVP  Speed Loop Gain 
Address: 0208H 
0209H 
 
Operational 
Interface: 
Panel / Software  Communication 
Related Section: 
6.3.6 
 
Default: 
500 
 
Control 
Mode: 
ALL 
 
Unit: 
rad/s 
 
Range: 
0 ~ 8191 
 
Data Size: 
16-bit 
 
Format: 
Decimal 
 
Settings: 
Increase the value of speed loop gain can enhance the speed 
response. However, if the value is set too big, it would easily cause 
resonance and noise. 
 
P2-06    KVI  Speed Integral Compensation 
Address: 020CH 
020DH 
 
Operational 
Interface: 
Panel / Software  Communication 
Related Section: 
6.3.6 
 
Default: 
100