9
vacon • 99
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 demanded until the system is in the Safe State. For VACON
®
20 CP, the reaction time is
20 ms maximum.
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....5V = “0”
Response time at nominal voltage:
Reaction time
<20ms
Table 45. Electrical data.
Summary of Contents for 20 CP
Page 1: ...vacon 20 cp ac drives installation Technical and Maintenance manual ...
Page 2: ......
Page 6: ...vacon 3 ...
Page 16: ...1 vacon 13 Safety Figure 6 STO certificate ...
Page 18: ...1 vacon 15 Safety ...
Page 24: ...vacon 21 Receipt of delivery 2 ...
Page 36: ...3 vacon 33 Mounting ...
Page 48: ...4 vacon 45 Power cabling ...
Page 64: ...5 vacon 61 Control unit ...