Application Examples With Safety Function - DOLD SAFEMASTER C UG 6980 Manuel D'utilisation

Application Examples with safety function

DC24V
On
A1+
ST1
Reset
RES
A2
0V
Safetyfunction: see below, Manual-Start (for automatic start make a bridge to ST2 instead of ON button).
Contact reinforcement by external contactors. The correct function of the external contactors is monitored by connecting the NC contacts into the start
circuit ( manual start: terminals S21-ST1, auto start: S21-ST2)
emergency
stop
S21 S22 S11
Fct.: E-stop (1),
with cross fault detection
SIL 3, PL e, Cat. 4
safety edge
S21 S22 S11
Fct.: Safety mat / Safety edge (4),
with cross fault detection
SIL 3, PL e, Cat. 4
Sliding door
is closed
S21 S22 S11
Fct.: Safety gate (7),
without cross fault detection
SIL 3, PL e, Cat. 4
1)
E. DOLD & SÖHNE KG • D-78114 Furtwangen
e-mail: dold-relays@dold.com • internet: http://www.dold.com
K5
Safetyfunction
K6
ST2 S21 S22 S11 S12
UG6980
S12
M10768
Fct.: Safety gate (2),
S12
M10774
Fct.: Exclusive or contacts (5),
DC 24V
0V
S12
S21
M10770
Fct.: Light curtain (8),
13 23
+
K1
K1
K2
K2
14 24 38
K5 K6
M10776_b
Sliding door
is closed
S21 S22 S11 S12
M10778
with cross fault detection
SIL 3, PL e, Cat. 4
S1
S21 S22 S11 S12 S12
M11124
with cross fault detection
SIL 3, PL e, Kat. 4
+ +
Transmitter
Receiver
OSSD1 OSSD2
S22 S11 S12
without cross fault detection
SIL 3, PL e, Cat. 4
2)
•
PO Box 1251 • Telephone (+49) 77 23 / 654-0 • Telefax (+49) 77 23 / 654-356
20
S1
S21 S22
Fct.: Two-hand control (3),
with cross fault detection
SIL 3, PL e, Cat. 4
Type III C to EN 574
S21 S22
Fct.: E-Stop (6),
without cross fault detection
SIL 3, PL e, Cat. 4
1) To achieve the stated safety classification the
wiring has to be done with crossfault monitoring.
2) To achieve the stated safety classification
light curtains with selftest (type 4) according
to IEC/EN 61496-1 have to be used.
M11317
S2
S11 S12
M10750
emergency
stop
S11 S12
M10772
1)
UG 6980 / 08.07.19 en / 214A