There was issue with linecard WS-X4648-RJ45V+E in the 4510 chassis. Without any records in the logs new PoE devices that were attached to the switch on linecard didn`t work (switch did not provide power for them). Furthermore, we turned off\on old device (that still working on this moment) and it did not work too.
From google search information, a lot of people saw this problem with same linecard sometimes. I think the reason of this issue – same wrong hidden power counter on this linecard. The only way to resolve problem – restart linecard (no hw-module module N power, hw-module module N power).