Configuration / project engineering
9.2 Functions
3TK2826 safety relay
Manual, 08/2007, GWA NEB 926 1579-02 DS 02
29
Table 9-2 Setting for safety shutdown mat operation
OFF Schematic DIP switch
No.
ON
1
2
—
3
Safety shutdown mat operation
Debounce time for sensor inputs ∼ 50 ms 4 Debounce time for sensor inputs ∼ 10 ms
Autostart sensor input 5 Monitored start sensor input
Autostart cascading input 6 Monitored start cascading input
With startup testing 7 Without startup testing
Automatic startup after power failure (not
permissible in conjunction with startup testing)
8 Without automatic startup after power failure
WARNING
Prerequisites for monitoring with safety shutdown mats in accordance with DIN EN 1760-1
• only safety shutdown mats may be connected
• Safety shutdown mats with cross-circuit evaluation only
• Safety shutdown mat and cable resistance < 1000 Ω
• 4-wire system
Switch settings that are not permitted:
● Without cross-circuit detection, in combination with safety shutdown mat operation
(DIP switches 1, 2 and 3 are OFF).
● With startup testing and simultaneous automatic startup after power failure
(DIP switches 7 and 8 are OFF)
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