Direct Stop With Feedback To Plc, Stop Category 0 - BONFIGLIOLI Vectron ACTIVE CUBE Applications Manual

10.2

Direct Stop with Feedback to PLC, Stop Category 0

The application circuit shows a drive control system according to EN ISO 13849-1 PL d, IEC 61508 SIL
2 or EN 954-1 category 3 with PLC and safety module. A PLC performs the process control of the fre-
quency inverter and can start the drive profiles via commands.
If the protective device is actuated, e.g. safety door open, the enable paths of the safety module are
interrupted. As a result, the controller enable signal of the frequency inverter is interrupted via the
disconnection of the control voltages from STOA and STOB and the integrated safe pulse block is acti-
vated.
The safety module monitors the function of the switches S1 and S2 which are located outside of the
electrical cabinet.
Safety installation
opened
closed
Acknowledgment
ACU-STOV1-01SV2-04 en
09/14
S1
S2
Safety control
equipment
STOA
STOB
Eletrical cabinet
Position switch displayed actuated
PLC
1 +E24V
2 GND
3 S1IND
4 S2IND
Start CW
5 S3IND
Start CCW
6 S4IND
7 S5IND
1 S6IND
2 S7IND
3 S1OUTD
Speed
4 MFO1A
5 10VRef
Set value
6 MFI1A
7 GND
1 S3OUT.1
+24V
2 S3OUT.2
Feedback
3 S3OUT.3
Mains
X210A ACTIVE
Cube
X210B
X10 Relay
S3OUT
M
31