Haas TM1 Spindle drive fault 123

Hi Guys

Just started cutting the usual plastic parts and spindle went to max 4000rpm ok but alarmed out when spindle stopped and freewheeled slowly to a stop.

Will stop and start 0- 1500rpm ok not great for plastic though…

Have had 320v power error popping up more a little more frequently lately so am kind of thinking its linked to this.

Incoming 3 phase seems ok

Spoke to has engineer but was a little vague as its older 2003 ish model.

Any help would be appreciated

Cheers Kev