9
vacon • 115 Safe Torque Off
9.4.1 Technical details
The STO inputs are digital inputs intended for a nominal 24V d.c. input, positive logic (e.g. enabled
when high).
The reaction time of the STO function is the amount of time which passes from the moment in which
the STO is activated until the system is in the Safe State. For VACON
®
100 X, the reaction time is 20
ms minimum.
Technical information: Technical values
Absolute maximum voltage range 24V ±20%
Typical input current at 24V 10...15 mA
Logic threshold according to IEC 61131-2
15V....30V = “1”
0V....15V = “0”
Response time at nominal voltage:
Reaction time <20ms
Table 41. Electrical data.