# CRB15000 OmniCore C30 Controller **URL:** \ **Category:** Robot Controller\ **Created:** [March 10, 2022, 10:47am UTC](https://tech-community.robotics.abb.com/t/crb15000-omnicore-c30-controller/10629 "2022-03-10T10:47:01Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![jbilby62](https://avatars.discourse-cdn.com/v4/letter/j/22d042/32.png) [@jbilby62](https://tech-community.robotics.abb.com/u/jbilby62)\ **Post date:** [March 10, 2022, 10:47am UTC](https://tech-community.robotics.abb.com/t/crb15000-omnicore-c30-controller/10629/1 "2022-03-10T10:47:01Z")
Recently, I began having issues powering up my Omnicore C30 Controller. Controller was powering up just fine but then I needed to rerun some wire through wire duct and the power cable was one that needed to be rewired. Once the power cable was rewired I checked voltage across the load side of my fuse and the neutral terminal block the cable was wired to and I was getting 120 VAC. Just to be sure, I checked the voltage across the pins on the power cable connector and was also getting 120 VAC. I believe the manual said there is no internal fuse and I am fusing the system with a 10A fuse. The “MS” red light was on for a little bit but then eventually turned off. Is there something internal to the controller that may be blown? No smoke or odors are coming from the controller either. Thank you ---
**Author:** ![graemepaulin](https://avatars.discourse-cdn.com/v4/letter/g/258eb7/32.png) [@graemepaulin](https://tech-community.robotics.abb.com/u/graemepaulin)\ **Post date:** [March 10, 2022, 6:38pm UTC](https://tech-community.robotics.abb.com/t/crb15000-omnicore-c30-controller/10629/2 "2022-03-10T18:38:32Z")
Are there any entries in the error logs on startup that may give a clue to where the problem is? ---
**Author:** ![jbilby62](https://avatars.discourse-cdn.com/v4/letter/j/22d042/32.png) [@jbilby62](https://tech-community.robotics.abb.com/u/jbilby62)\ **Post date:** [March 10, 2022, 6:55pm UTC](https://tech-community.robotics.abb.com/t/crb15000-omnicore-c30-controller/10629/3 "2022-03-10T18:55:34Z")
> [@graemepaulin](#): > > Are there any entries in the error logs on startup that may give a clue to where the problem is? Currently unable to start up the controller to view any errors. ---
**Author:** ![graemepaulin](https://avatars.discourse-cdn.com/v4/letter/g/258eb7/32.png) [@graemepaulin](https://tech-community.robotics.abb.com/u/graemepaulin)\ **Post date:** [March 10, 2022, 7:13pm UTC](https://tech-community.robotics.abb.com/t/crb15000-omnicore-c30-controller/10629/4 "2022-03-10T19:13:18Z")
Misunderstood thought it was an intermittent fault… Please see attached from the product manual. Page 59/521 gives the LED status and meanings. [C30 trouble shooting.pdf](https://tech-community.robotics.abb.com/uploads/short-url/e8NArPzOc2NCsdDSBTpYLNVdmSL.pdf) (13.8 MB)