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Interlock LED on the UMI-7774/7772

Hardware: Motion Control

Problem:
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?

Solution:
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:
  • Make sure that you have a motion cable connecting the correct Motion I/O connector of your motion controller to the Motion I/O connector on your UMI-7774. The Interlock LED will be lit if you are connected to the Digital I/O connectors instead.
  • Make sure the cable connections are secure.
  • Make sure the computer is on. If the computer is off, the motion controller will not be powered on.


Related Links:
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?

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Report Date: 06/05/2006
Last Updated: 06/19/2006
Document ID: 3Y4DLNS4

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