feedback value (C1.05~C1.08) should be defined for
analog close-loop control;
3)Determine the close-loop regulation characteristic, if
the relationship between motor speed and the reference
is opposite,then set the close-loop regulation
characteristic as negative characteristic(C1.15=1).
4)Set up the integral regulation function and close-loop
frequency presetting function (C1.16~C1.18);
5)Adjust the close-loop filtering time, sampling cycle,
error limit and gain(C1.09~C1.14).
C1.00 Close-loop control function
0:Disable.
1:Enable.
C1.01 Reference channel selection
0: digital input
Take the value of C1.03.
1: AI1 analog input.
2: AI2 analog input
C1.02 Feedback channel selection
0:AI1 analog input
1:AI2 analog input
2:AI1+ AI2
3:AI1-AI2
4:Min{ AI1,AI2}
5:Max{ AI1,AI2}
Settings of AI are the same as above.
C1.03 Digital setting of
reference
This function can realize digital setting of reference via
panel or serial port.
C1.04 Close-loop speed
reference
C1.06 Feedback value
corresponding to the Min
reference
C1.08 Feedback value
corresponding to the Max
reference
The regulation relationship between C1.05,C1.07(in
Fig.6-39) and reference is shown in Fig.6-41.When the
analog input 6V,if C1.05=0% and C1.07=100%,then
adjusted value is 60%.If C1.05=25% and C1.07=
100%,then the adjusted value is 46.6%.
Fig.6-42 Regulation curve of reference
Note:
1.Fig.6-42,0%~100% in X axis is corresponding to
analog input - 10V ~ 10V,10V of analog input is
corresponding to 100%,and-10V is corresponding to
0%,6V is corresponding to 80%.
2. If the analog type is current input,because the
currentinput range is 4~20mA,then the range of X axis
is 50%~100%.