AL8-2 – Programming manual
4189320003D
Page 9/19
ALARM ON OPEN OR CLOSED SIGNAL CONTACT (N/C, N/O)
The "N/O" and "N/C" LEDs indicate the actual function as follows:
NOTE: Both LEDs are lit simultaneously.
EITHER: GREEN N/O FUNCTION:
RED N/C Alarm on closed signal contact
OR: RED N/O FUNCTION:
GREEN N/C Alarm on open signal contact
By pressing the FUNCTION SELECT push-button, the LEDs switch from one indication
to the other – thus changing the function.
When the indication of the LEDs shows the requested function, this is entered into the
programme memory by pressing the ENTER push-button.
Pressing ENTER results in the next function in the order being automatically pointed to:
selection of output relay.
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