Why is the Interlock LED on my UMI-7774/7772 Always On?
Hardware: Motion Control
The Interlock LED on my UMI-7774/7772 is always on, and the Disabled LED is always on for all my axes. How do I turn these LEDs off?
The host bus interlock is a safety feature that monitors the +5V pin from the motion controller to verify that the motion controller is powered on and properly connected to the UMI-7774. When the motion controller and the UMI-7774 are not properly connected, the Interlock LED on the UMI-7774 will light up and all axes will be disabled.
To turn off the Interlock LED, try the suggestions below:
If all of the above has been checked and the Interlock LED is still lit, then your UMI may be damaged. Please contact NI Technical Support for further assistance.
KnowledgeBase 14H8FRIT: Difference between a Universal Motion Interface and a Passive Terminal Block
KnowledgeBase 3VG9BKD3: Why Do I Have to Supply Power to the UMI-7764?
Report Date: 06/05/2006
Last Updated: 08/25/2014
Document ID: 3Y4DLNS4