Altivar Process ATV630 - Page 51

EAV64301 01/2015 51
Switch Set to EXT Position Using an External Power Supply for the DIs
NOTE:
z STO inputs are also connected by default on a 24 Vdc terminal. If the external power supply is switched
off, the function STO will be triggered.
z To avoid to trigger the STO function when switching-on the product, the external power supply must be
previously switched on.