H1 and H2 opened simultaneously

The STO function is triggered, and the drive stops running.

Fault code:

40: Safe torque off (STO)

H1 and H2 closed simultaneously

The STOP function is not triggered, and the drive runs properly.

One of H and H2 opened, and the other closed

The STL1, STL2, or STL3 fault occurs.

Fault code:

41: Channel H1 exception (STL1)

42: Channel H2 exception (STL2)

43: Channel H1 and H2 exceptions (STL3)