Siemens SIMEAS R-PMU Manual page 181

Group alarm
A group alarm will be tripped, when one or several messages (alarm reasons) arrive. These mes-
sages can be parameterized by the user, see chapter 12.10. In addition, the following reasons
trigger a group alarm:
Device self-monitoring detects a severe fault during start-up or during operation.
The device changes to blocking mode due to a high amount of data. In blocking mode all trig-
gers are deactivated.
One DAU is provided with a wrong calibrating frequency.
The group alarm relay contact closes, when an alarm occurs and opens after the alarm is reset.
The group alarm LED blinks, when a group alarm is triggered and will be extinguished once the
group alarm is reset and all assigned messages are in normal mode. If the group alarm is reset
and not all assigned messages are in normal mode, the group alarm LED lights permanently.
The group alarm may be reset: Via control panel (button Group alarm), via control input 4 and
via remote control (OSCOP P).
Table 13-5 Behaviour of the group alarm
Condition
Group alarm
Group alarm reset, alarm cause(s) still provided
Group alarm reset, alarm cause(s) eliminated
Digital Fault Recorder, SIMEAS R-PMU, Manual
E50417-H1076-C360-A5, Release 10.2012
13.2 Operator and Error Messages
Relay
Group alarm
Closed
Open
Open
13
LED
Group alarm
Blinking
On
Off
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