REV 0, June 2005 Page 181
Operation Manual SUPREMA
6. Startup
Check box “1
st
-4
th
Alarm”: If the alarm condition (limit value) for the assigned input is fulfilled,
then the selected setting condition is fulfilled. Checking the check box selects the condition.
Check box “Failure”: This setting condition is fulfilled when a failure has occurred at the assigned
input. Checking the check box selects the condition.
Check box “Locked”: This setting condition is fulfilled when the assigned input is inhibited. This
condition is selected by checking the check box.
Option field “Voting”: Here links can be made between the various setting conditions selected
in the setting matrix. The number of setting conditions selected for the chosen relay driver
output is shown after the “/” (in the field “Alarm(s) of”).
In the option field “Voting”, you enter the number of conditions which must be fulfilled for the
setting of the relay driver output.
The following types of links can be set up in this way:
• Single link: Exactly one condition has been set, and the value 1 has been selected as
the switching threshold.
• OR link: Several conditions have been set, and the value 1 has been selected as the
switching threshold. That is, the selected relay output is set when any one or more than
one of the selected conditions are fulfilled. It is possible in this way to configure a
Common Alarm.
• AND link: The value set for the switching threshold is the same as the number of
selected conditions; that is, all of the selected conditions must be fulfilled before the
selected relay output is set.
• “n” out of “m” link: If m conditions have been set and the value n has been selected
as the switching threshold, the selected relay output is set when n out of the m
conditions are fulfilled.
Attention: After finishing the configuration , check the settings you have made for
correctness and plausibility to ensure that the alarms will be triggered reliably.
It is recommended that the relay output driver configuration be checked after the preliminary
calibration and before the connection of alarm devices by supplying test gas to the sensors. In
this way, the functionality of the entire system is tested all the way from the sensor to alarm
actuation.
Attention: No input may be inhibited during the test.
The alarm configuration can also be checked at the sensors without test gas application by
using the sensor simulation modules.
6.4.2 Behaviour of the Relay Outputs
The behaviour of a relay output depends on the parameter setting of “new Alarm” or the alarm
settings “latching” or “non-latching”
section 4 Operation of the System.
Non-latching alarm:
The signal is within the alarm limits:
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