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PCI-7340 won't achieve commanded speed
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crweiss
Jul 29, 2008, 3:10:12 PM7/29/08
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I am trying to command a speed of 3700 RPM at a rate of 60rpm/sec. The speed seems to max out at 500 RPM. I can reach higher rpms at faster ramp rates.
Max speed seems to be related to the acceleration rate.
I have replaced the motion board and I have the same problem.
NI Software : LabVIEW version 8.2
NI Hardware : Motion Control device PCI-7340
Driver Version : 1.11.1f0
OS : Windows XP Customer Information :
Max speed seems to be related to the acceleration rate.
I have replaced the motion board and I have the same problem.
NI Software : LabVIEW version 8.2
NI Hardware : Motion Control device PCI-7340
Driver Version : 1.11.1f0
OS : Windows XP Customer Information :
crweiss
Jul 30, 2008, 3:40:16 PM7/30/08
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It is a servo motor. The 7340 is a 4-axis board and I am using 3 out of the 4 axis.
Thanks
Thanks
crweiss
Jul 31, 2008, 7:10:16 AM7/31/08
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Jochen,
Thanks for looking onto this. I have tried changing the PID period, and successfully doubled the maximum velocity, by retuning the PID controller. Unfortunately, this still doesn't get me where I need to be. How do you decrease the deceleration value? I haven't been able to find it?
Thanks for looking onto this. I have tried changing the PID period, and successfully doubled the maximum velocity, by retuning the PID controller. Unfortunately, this still doesn't get me where I need to be. How do you decrease the deceleration value? I haven't been able to find it?
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