Alarm Acknowledgement - Siemens 7MJ2000-1A 00 Series Operating Instructions Manual

Signal processing

7.5 Alarm acknowledgement

7.5 Alarm acknowledgement
The effect of the parameter "P.14/AcK" is described below. For simplification, no hysteresis
is plotted in the time diagram. The parameter value "P.13/TIME" for the response time is 0.
The parameter "P.14/AcK" can be set to three values:
oFF
St.Ac
¬St.Ac
Figure 7-9 Acknowledgement evaluation
76
Acknowledgment here with the <ACK> button is not possible. The alarm occurs
exclusively upon exceeding or not reaching the alarm value.
Stored and can be acknowledged
Time 1: Alarm value exceeded, alarm is output.
Time 2: Acknowledgement with <ACK> button, alarm is reset.
Time 3: Alarm is only set if the alarm value is exceeded again.
Time 4: Value below alarm value, alarm remains saved.
Time 5: Acknowledgement with <ACK> button, alarm is reset.
Not stored but can be acknowledged
Time 1: Alarm value exceeded, alarm is output.
Time 2: Acknowledgement with <ACK> button, alarm is reset.
Time 3: Alarm is only set if the alarm value is exceeded again.
Time 4: Value below alarm value and alarm canceled.
SITRANS DA400 for oscillating positive displacement pumps
Operating Instructions, 09/2008, A5E00841120-03