IHM03A1 bridges on or off during undervoltage or overcurrent

Hy,

I'm using X-NUCLEO-IHM03A1 '

High power stepper motor driver expansion board based on powerSTEP01 for STM32 Nucleo

I want to know if when there is a problem of undervoltage or overcurrent during a GoTo command the driver still drives the motor or otherwise the bridges are off.

It seems to me that they are off, is it true?

Thanks, 

EtAntonio