Hello all,
We're getting started in motion control with a fairly simple stepper motor/actuator project. We are using the PXI-7344, the UMI-7764, P70530 (NI & Danaher) stepper drive, and an N31HRHJ motor. The actuator and limit switches are from Festo. I'm attaching a pdf of the Festo connection diagram. The switch we selected is of the PNP variety.
So far I've not been able to get the Festo switch to trigger the limit input on the UMI-7764. The switch has an LED on it which indicates presence of a magnetic field or not. I connected things in various configurations to no avail. The UMI uses a 5V supply, so I figured that it wouldn't be enough for the switch, which is specified as 10-30V range. I've tried connecting 24V power across the switch but must have some other connection to the UMI wrong.... I'd like to configure this so that the switches are Normally Closed. Are any resistors or other connections required to get this to work?
I've tested the UMI with a SPST switch and "MAX interactive" responds appropriately showing when the limit switch is active or not.
If you've been through this before, your guidance would be much appreciated...
Thanks much,
Ted
Message Edited by Bairoa on
07-29-2008 02:39 PM