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

8.2
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 frequency 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 fre-
quency inverter is interrupted via the disconnection of the control voltages from
STOA and STOB and the integrated safe pulse block is activated.
The safety module monitors the function of the switches S1 and S2 which are located
outside of the electrical cabinet.
opened
closed
Acknowledgment
ACU-STOV1-01SV2-03 en
03/11

Direct Stop with Feedback to PLC, Stop Category 0

Safety installation
S1
S2
Safety control
equipment
Eletrical cabinet
Position switch displayed actuated
PLC
STOA
Start CW
Start CCW
STOB
Speed
Set value
+24V
Feedback
Mains
X210A ACTIVE
Cube
1 +E24V
2 GND
S1IND
3
4 S2IND
5
S3IND
6 S4IND
7 S5IND
X210B
1 S6IND
2 S7IND
3 S1OUTD
4 MFO1A
5 10VRef
6 MFI1A
7 GND
X10 Relay
1 S3OUT.1
2 S3OUT.2 S3OUT
3 S3OUT.3
M
19