10-17-2012 03:14 PM
Hello, I am trying to build a CNC Milling Machine, I have:
-Labview 2011
-NI Motion Assistant 2011
-PCI - 7334, for Motion Control,
-UMI-7774 Universal Motion Interface (With their power supply (24 DC and 5 DC) and with their cables ( 2 SHC68-C68-S 68 pin VHDCI to 68 pin, and all DB-25, DB-15, DB-9 for all connections)
- 3 Drivers DM860A
- 3 Stepper Motors 34HST9805-37B2
the problem is that I bought the stepper motors and drivers kit from another supplier, and i can´t connect this drivers to the UMI-7774, the original drivers for the UMI are NI P7000. Well This is my problem, I would like help me to connect these drivers, to start the first tests.
Here I put the data sheets of the drivers and motors (motors and drives are already connected)
10-24-2012 12:43 PM
10-24-2012 12:43 PM
03-13-2017 02:11 PM
Dear all,
I am trying to connect the UMI-7774 (previously connected to a PCI card 7334 within a PC with windows XP) to a gecko driver g203v, but I cannot manage to move a stepper motor.
I have tested the driver and the motor with the PWM signal from the PCI card and it worked, for frequencies from 4k to 33k of the PWM.
When I measure the output signal from the UMI device, I get 5 volts amplitude and a normal step signal, but when I connected to the Gecko driver the signal is 1.5 volts amplitude.
The Gecko driver requires a source configuration, whilst the output of the UMI device is sink open collector. I tried to connect the step signal directly to the driver but it did not work, then I connected the UMI ouput through a resistor to 5V source (sink configuration), but it didn´t work.
Does anyone knows if the UMI device have to be connected only with NI motors drivers?
or can anyone advice how to solve the problem?
Best wishes,
Victor