Hi
my friends,
I have problem with KM4 contactor(break release) in abb 6400 s4 m94a
system come up as well without any error, but when i get the dead man switch motor on lamp will be ON and ready for jog in manual mode but the KM4 contactro doesn't work .
and robot do jog without break release as hardly and after some second we have error of over load.
What is my problem . why this contactor doesn't do without any error on teach pendant.
I replace the DSQC 256A with new one but my problem has remained.
Many thanks and best regards.