Hi...after power outage ,one motor is not working...is therea reset for drivers..bob?....thanks

not usually, just full power-down and restart, check your fuses/mcb's etc.

Thanks,  do the drivers usually have fuses?....what is mcb?...pardon my ignorance

No idea what system you have but there usually is a fuse or Magnetic Circuit Breaker (like a fuse but one that can be reset over and over, looks like a switch) in the supply somewhere. If there is none then it looks likely a drive has blown, the fact that other axes are working looks this way.

thanks for your help...i'll look for fuse or mcb tomorrow...