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Tuning a Motion Controller for Different Dynamics Forward and Backward I have a closed-loop system that is driven by a 7340 motion controller. The load moves in the vertical direction. Due to the effects of gravity, I have different loading parameters when traveling downward opposed to traveling upward. How can I tune my motion control card to compensate for the URL: http://digital.ni.com/public.nsf/allkb/8108FBCAF15FDEE0862572DE0071AE6B

前向或后向运动中调整电机控制器的参数 我有一个用7340 motion控制器驱动的闭环系统。负载进行垂直方向运动。因为重力的影响，相对于向上运动，我有不同的负载参数用于向下运动。当进行上下不同方向运动时，如何调整motion控制卡的参数来补偿变化的运动？ URL: http://digital.ni.com/public.nsf/allkb/8E8F8818E391AAD9862574000018BBB7

Closed Loop Stepper Movement is Inaccurate I have a closed loop system setup on my stepper motor to ensure that my movements are accurate; however, when I command the motor to move, it does not move to the appropriate location. Why is this happening? URL: http://digital.ni.com/public.nsf/allkb/E315EF739926310B862572CF00805A51

Error -70207 when Initializing a PCI-7390 Motion Controller When initializing my PCI-7390, I recive the error -70207 says 'The move cannot be completed because the inhibit input of the commanded axis is active.' Why am I getting this error, and what can I do to initialize the board without getting this error? URL: http://digital.ni.com/public.nsf/allkb/E55301855F60C9DA862572C20065ECD4

Implementing Feedforward Position Component on NI-Motion Controllers How can I implement a feedforward position component to my system if I know that my load will vary linearly as I move away from the zero position? URL: http://digital.ni.com/public.nsf/allkb/53BF23F982C3BF17862572AD00701503

Why is the Digital Output Line 1 on my PCI-7390 Not Working? I have a PCI-7390 motion controller and I am trying to use the digital output lines. When using line 0 on the ports related to axis 1, 2, 3 and 4, I am able to change the line state. But when I try to change the line state with line number 1, I do not get the results I am expecting. How can I URL: http://digital.ni.com/public.nsf/allkb/9264ECD5CB2BF56E8625727D00099A71

为什么我的PCI-7390的数字输出Line1不工作？ 我有一块PCI-7390运动控制卡，我正在尝试使用数字输出线。当使用轴 1, 2, 3 和 4相关的端口的Line0时，我可以改变Line的状态。但是当我更改Line1的状态时，我得不到想要的值。如何在7390上让数字输出Line1能够工作？ URL: http://digital.ni.com/public.nsf/allkb/A50BF681BC9FFC3C862574000019F178

读取UMI-7764/7774上的Inhibit All的状态 我能够读取连接NI-Motion卡的UMI-7764或UMI-7774上的Inhibit All信号的状态吗？ URL: http://digital.ni.com/public.nsf/allkb/451BEEEC6A1857FD86257240003C5416

P-Commandモードと通常のOpen-LoopモードやClosed-Loopモードとの違い MAXでStepperモータの設定をしていると、"Stepper Loop Mode"で"Open-Loop"と"Closed-Loop"に並んで、"P-Command"という設定を行う箇所があります。"Open-Loop"と"Closed-Loop"などの通常のStepperモータの設定と比較して、どのような点が URL: http://digital.ni.com/public.nsf/allkb/B0623383E326C61F86257359001FC964

What is the Difference Between P-Command and Stepper when Using National Instruments Motion Products? I have heard that Position Command (P-Command) is similar to stepper control and I want to know what the difference is between the two. So, what is the difference between P-Command and Stepper when using National Instruments Motion Products? URL: http://digital.ni.com/public.nsf/allkb/7D26773D145497428625723E0009B0A0