when drilling, tapping and threading the Z axis stops and no apparent reason to it but have a 2032 fault no other msg. The lathe will make 20 parts an fault and sometimes runs for hours. Swapped amplifier, checked cables and took milli-ohm readings of motor windings also checked parameters. It has me stumped. I said Z axis stops but maybe something else is causing the fault? Any one have seen this or an idea what to check next.