An output relay should be configured as a limit relay, otherwise an alarm will be raised when the output is
activated.
To use the relay in M-Logic, it must be configured as a limit relay.
Horn relay
All configurable relays can be selected to be a horn output (horn relay).
This means that, for example, the relay can be connected to an alarm annunciator, like a horn. When "Horn
relay" is selected, an external horn is activated every time a new alarm occurs. If the alarm horn timer in pa-
rameter 6130 is adjusted to 0 seconds, the horn remains activated until the alarm is acknowledged. If the
alarm horn parameter (6130) is not 0 seconds, the horn relay output is active until the timer expires and then
the relay deactivates, even though the alarm is still present.
Siren relay
When "Siren relay" is selected, an external siren is activated on all alarms, like the selection "Horn relay".
When the siren relay is activated and another alarm is active, a short-time reset will be activated. If the alarm
horn timer in parameter 6130 is adjusted to 0 seconds, the siren relay remains activated until all alarms are
acknowledged.
Alarm relay NE
The related relay is used as an alarm relay of the type "NE" (Normally Energised).
The relay is normally closed, and if the related alarm occurs, the relay will open until the alarm is acknowl-
edged and gone.
4. Delay
Used when the relay function is "Limit".
The delay setting indicates how many seconds the relay stays energised after the input has become inactive.
This functionality is also called off-delay.
CIO 308 installation and commissioning
guide 4189341078 UK
I/O setup
DEIF A/S
Page 18 of 25
