X DAC Under Flow

[sidstover]

What does this alarm mean (X DAC Under Flow)? And what should I look for as the cause?

Thanks
Sid

[machintek]

A DAC underflow usually happens when a axis moves when it is not supposed to.
The Control sees a pulse count when it did not command one.

George

[sidstover]

Thanks George, but what could cause it.

Sid

[machintek]

The 12 VDC comes from the logic power supply. But where it goes is very dependent as to which control you have.

George