7344 PCI behave erratically, the random movements of servo

I use a PCI-7344 to control a 3-axis test bench. Today when I booted with on all the settings it has not worked, just kept servos moving randomly, even when controlled by MAX and a script of movement. Even the kill command has failed. I checked for the disconnected wires, but nothing has moved since the last time I used the system.

The servos for all axes acted weird. The current position, the target position and the following error message remained at zero, even though the engines were spinning. On an axis, the MAX software would show the current increase in position and values of random speed while the position of the target and following error message has remained at zero.

Something went wrong and I don't know how to fix it this time. Does anyone have an idea what to do? Since I was put on this project, I never enjoyed working with NOR-MAX or the PCI-7344. It seems I have spend more time to use it for experiments in fixing it.

It turns out that someone disconnected the cable used to power the PCI-7344. Once I plugged it back in it works well again.

Tags: NI Hardware

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