External circuitry
10.1 Sensor wiring
3TK2826 safety relay
40 Manual, 08/2007, GWA NEB 926 1579-02 DS 02
DIP switch Circuit example
1 2 3 4 5 6 7 8
Description
3TK2826-.BB4. 3TK2826-.CW3.
0 1 0 — 1 — — — 2 x 1-channel, without cross-circuit detection,
with monitored start
9 11
0 1 0 — 0 0 — — 2 x 1-channel, without cross-circuit detection,
with autostart
10 12
0 0 1 — 1 — — — NC and NO contacts without cross-circuit detection,
with monitored start
13 15
0 0 1 — 0 0 — — NC and NO contacts without cross-circuit detection,
with autostart
14 16
0 1 1 — 1 — — — Type 4 light array, without cross-circuit detection,
with monitored start
17 —
0 1 1 — 0 0 — — Type 4 light array, without cross-circuit detection,
with autostart
18 —
— = Not relevant
Table 10-2 Legend
DIP
switch
Meaning 1 = (ON) Meaning 0 = (OFF)
1 With cross-circuit detection Without cross-circuit detection ON
2 NC contact/NC contact evaluation NC contact/NO contact evaluation OFF
3 1 x 2-channel 2 x 1-channel OFF
Safety shutdown mat
4 Debounce time for sensor inputs 10 ms Debounce time for sensor inputs 50 ms —
5 Monitored start sensor input Autostart sensor input —
6 Monitored start cascading input Autostart cascading input —
7 Without startup testing With startup testing —
8 Without automatic startup after power
failure
Automatic startup after power failure (not
permissible in conjunction with startup testing)
—
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