Siemens Sirius 3TK2826 - Page 65

Circuit diagrams/applications
13.1 Block diagrams
3TK2826 safety relay
Manual, 08/2007, GWA NEB 926 1579-02 DS 02
65
Typical circuit diagrams for cascading input (terminal 1)
A 1
1 3 2 3
1 4
2 4
3 3 4 3
3 4 4 4
5 1
5 2
A 2
A 1
T3
Y 3 3
T 1
Y 1 2
1
Y 2 2 T 2
7 4
Q 2
ON
Y 3 4
6 4

A 1
1 3 2 3
1 4
2 4
3 3 4 3
3 4 4 4
5 1
5 2
A 2
A 1
T3
Y 3 3
T 1
Y 1 2
1
Y 2 2 T 2
7 4
Q 4
ON
Y 3 4
6 4

A 1
1 3 2 3
1 4
2 4
3 3 4 3
3 4 4 4
5 1
5 2
A 2
A 1
T3
Y 3 3
T 1
Y 1 2
1
Y 2 2 T 2
7 4
Q 4
ON
Y 3 4
6 4

A b s c h a l t u n g
B e r e i c h 1
A b s c h a l t u n g
B e r e i c h 2
Ü b e r g e o r d n e t e A b s c h a l t u n g
Q 1
Q 1
Q1
2 4 V D C
M
H1 H2
Q 1 Q 2
H3
H1 H2
Q 1 Q 2
H3 Q3 Q4 H1 H2
Q 1 Q 2
H3 Q3 Q4
.
.
.
.
.
.
.
.
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Figure 13-5 3TK2826 - cascading typical circuit diagram
WARNING
Short circuit protection in accordance with IEC 60 947-5-1
The device must have an upstream fuse, 4 A gL/gG or 6 A quick-response, as short circuit
protection.