Protection
Alarms
2 - 24
SKF Multilog O
n-Line System IMx-M
User Manual
Figure 2 - 17.
Enter/Leave
Time Example.
The example of alarm status change shown in the diagram above;
1.
The alert has not triggered: The measurement value has exceeded the alarm level
for a shorter duration than the enter time.
2.
The alert has triggered: The measurement value has exceeded the alarm level for
longer duration than the enter time.
3.
The alert has released: The measurement value drops below the hysteresis
adjusted alarm level and remains below for the duration of the leave time.
*Only for digital channels
First Out Indication
First Out
is set when an armed channel enters a danger state.
•
Channel First Out Slot
is the first channel that reaches the danger state amongst
all the channels in the protection module.
•
Channel First Out Rack
is the first channel that reaches the danger state amongst
all the channels in the rack.
•
First Out
will trigger on analog channels, Gap and calculated combined channels.
–
If a channel or a slot is armed while the channel is already in danger state, then
first out will be set (if not already set).
–
When a channel or a slot is armed, the information of the first out indication is
valid if only one channel is in danger at the time of arming.