PCI-7344 responds to MAX but does not active motors

[jwnelson97]

We were using a PCI-7344 to control three stepper motors.  The computer crashed and was replaced with XP and Labview 8.0 (from 2000 and 7.0), but we were not able to achieve a response from the motors.  We reverted back to 2000 and 7.0 along with reverting the firmware for the PCI-7344 back.  Still nothing; not even any errors when intializing or running motions.  All hardware connections check and are intact.  Any suggestions would be greatly appreciated.

[JeffL]

Hi jwnelson97,

What drive are you using? What version of NI-Motion are you using? What motors are you using?

When you say it responds in MAX, do you mean you can do interactive control and actually get movement?

[jwnelson97]

Jeff, 

Responses in blue:

What drive are you using?  I am not sure what you mean by "drive."  Where can I locate this info?

What version of NI-Motion are you using? NI-Motion 6.1.2

What motors are you using?  Electrak 2000 driven by Superior Electric Slo-Syn SS2000D6 Motor Drives

When you say it responds in MAX, do you mean you can do interactive control and actually get movement?

No, there is no motion at all, but there are also no errors generated.

Thank you for your help!

 

[JeffL]

Hi jwnelson97,

Drive is the Motor Drive you referred to lower down on your post (Superior Electric).

So you said all the 'hardware connections' are fine - are you using a UMI-7764 to break out the lines? Because if you're getting no motion at all without error it sounds like

a) your connections have been flipped (check wiring guide for your drive and motors)

b) your drive is toast

c) your motors are toast

[jwnelson97]

Thanks JeffL.  I will check these things and get back.  

[jwnelson97]

JeffL,

I have spent some time and it appears that we are not getting any signal thru the UMI-7644.  Voltages are constant when it is turned on and a motion is sent via either a VI or through a MAX command.  

We were running along fine until the HD on the machine the PCI-7344 was in died.  We then put the card into a new machine with Windows XP, updated all the drivers and firmware and went to Labview 7.x.  Since the HD crashed motion has not been possible.

Any thoughts are appreciated.

Kindly,

jwnelson97

[Vivek_N]

From here on, I will assist you on this issue through the service request that you have with us.