Safe Torque Off vacon • 115
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
9
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 maximum.
Table 46. Electrical data.
Technical information: Technical values
Maximum voltage 30 V
Typical input current at 24V 10...15 mA
Logic threshold according to IEC 61131-2
15V....30V = “1”
0V....5V = “0”
Response time at nominal voltage:
Reaction time <20ms