Hi,
I have a Labview program slightly modified from a Thorlabs example for controlling the APT DC Servo Controller (TDC001), which is connected to a motorized actuator. Depending on which button you click on the front panel, you can home the motor, set the moving parameters (velocity, final position, etc.), or move the motor according to the parameters. As the motor moves, the current position of the motor is displayed on the MG17Motor panel.
Everything works perfectly except for one small annoying problem: about 10-15 seconds after the motor starts moving (either homing or moving to a desired position), the front panel would freeze and the title would say "not responding". The MG17Motor panel would also stop updating the current position. Meanwhile, the motor continues to move at the pre-set pace until it reaches its destination, so the motor is unaffacted by the freeze. Once at the destination and the motor stops, the front panel would unfreeze and the display would show the updated current position, which is of course the pre-set final position.
When the motor starts moving, the front panel is still not frozen. It's only after about 10 seconds that the panel starts to freeze. The CPU and memory don't seem to go up much. The CPU is at several percent in total and the memory is about 40% in total.
I'm wondering, what's causing this problem and what can be done to solve it? I'm planning to run long scans and would very much like to have the current position of the motor shown to me as the motor moves. Any suggestion would be much appreciated!
-ywli