Good day for all:

I need some of help I wait that somebody of you can help me please.
I have a Hitachi seiki turnign center, the model is HT-25S and the CNC is Jaznak JZNC-2K22, is frecuently that this machine present the next fault:
Alarm 280 and it doesn't has another message, and the manual that I have It doesn't say about this problem, I wait that somebody of you can to have any recomendation for this fault. thank's anyway.