Group Stop, Stop Category 1 - BONFIGLIOLI Vectron ACTIVE CUBE Applications Manual

10.6

Group Stop, Stop Category 1

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 a PLC connected via the field bus and safety module. A PLC performs
the process control of the frequency inverter and can start the drive profiles via commands which are
communicated through the field bus.
If the protective device is actuated, e.g. emergency stop switch, the enable paths of the safety mod-
ule are interrupted. At first, the travel signal "Clockwise" is reset. Then, the motors are decelerated in
a controlled way. After a delay t
via the disconnection of the control voltages from STOA and STOB and the integrated safe pulse block
is activated.
Via the field bus, the (non-safe) feedback is transmitted to the PLC indicating that the drives have
stopped. Except for the terminals shown in the diagram, no further terminals are required for connec-
tion.
The external DC 24 V supply must be dimensioned accordingly. For each STOA & STOB input, 14 mA
must be available.
Emergency stop device
opened
closed
Acknowledgment
STOA: first shutdown path of the safety function STO
STOB: second shutdown path of the safety function STO
Position switch displayed actuated
t : time delay between signaling contact and shutdown contact
v
ACU-STOV1-01SV2-04 en
09/14
, the controller enable signal of the frequency inverters is interrupted
v
S1
S2
t
Safety control
v
equipment
STOA
STOB
Electrical cabinet
Mains
+24 V
X210A
3 S1IND
4 S2IND
Start CW
X210B
2 S7IND
M
X210A
3 S1IND
4 S2IND
X210B
2 S7IND
Safety circuit
Field bus
ACTIVE
Cube
X310
Field bus
connection
ACTIVE
Cube
X310
Field bus
connection
35