Typical Circuits - Siemens SIRIUS 3TK2826 Manual

10.2

Typical circuits

Typical circuits
Table 10-3
Table 10-4
3TK2826 safety relay
Manual, 08/2007, GWA NEB 926 1579-02 DS 02
Circuit example 1: 2-channel, with cross-circuit detection, with monitored start
START
Y12 T1 Y33 T3 1
Y22 T2 Y34
K
1
. .
.
K
n
Circuit example 2: 2-channel, with cross-circuit detection, with autostart
Y12 T1 Y33 T3 1
Y22 T2 Y34
K
1
. .
.
K
n
10.2 Typical circuits
With cross-circuit detection
•
2 NC contacts
•
2-channel
•
Monitored start
•
3TK2826-.BB4. and
•
3TK2826-.CW3.
•
DIP switch
1 2 3 4 5
1 1 1 — 1
Category in accordance with
DIN EN ISO 13849-1
Safety Integrity Level (SIL), in
accordance with IEC 61508
With cross-circuit detection
•
2 NC contacts
•
2-channel
•
Autostart
•
3TK2826-.BB4. and
•
3TK2826-.CW3.
•
DIP switch
1 2 3 4 5
1 1 1 — 0
Category in accordance with DIN
EN ISO 13849-1
Safety Integrity Level (SIL),
in accordance with IEC 61508
External circuitry
6 7 8
— — —
4
3
6 7 8
0 — —
4
3
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