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style="face: arial">Dear Xcos users who are interested in step
response:</FONT></DIV></DIV></DIV>
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<DIV>Regardng above, I resend the mail. Please disregard the one which I sent
last month.</DIV>
<DIV> </DIV>
<DIV>I have recently tried step response of dc motor circuit in Xcos.</DIV>
<DIV>But to get the attached result, slight modification was necessary because
original circuit </DIV>
<DIV>can’t be simulated showing “Algebraic loop” error .</DIV>
<DIV>I needed to change one of the Gains(value=22) into first order lag(gain=22,
time constant=0.1ms).</DIV>
<DIV>Regarding detail refer to the attached ZIP file. It contains original &
modified circuits in Xcos, Scilab step response </DIV>
<DIV>that was manually calculated from the Xcos block diagaram, and the
simulation results are the same.</DIV>
<DIV> </DIV>
<DIV>I’d like to know what “Algebraic loop” error means, and is there
another method to avoid the error?</DIV>
<DIV> </DIV>
<DIV>Regards,</DIV>
<DIV>Nobuo
HIZUME</DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></BODY></HTML>