Endress+Hauser RMS621, Operating Manual

Page: 45 / 90

RMS 621 6 Commissioning
Hauser 45
Operating mode Max+Alarm,
Grad.+Alarm, Alarm, Min,
Max, Gradient, Wet steam
Unit fault
Min+Alarm
Defines the event that is to trigger the alarm set point.
•
Min+Alarm
Minimum safety, event message on undercutting the alarm
set point with simultaneous monitoring of the signal source
to NAMUR NE43
•
Max+Alarm
Maximum safety, event message on undercutting the alarm
set point with simultaneous monitoring of the signal source
to NAMUR NE43
•
Grad.+Alarm
Gradient analysis event message of exceeding the
predefined signal change per time unit of the signal source
with simultaneous monitoring of the signal source to
NAMUR NE43
•
Alarm
Monitoring of the signal source to NAMUR NE43, No alarm
set point function
•
Min
Event message on undercutting the alarm set point without
monitoring to NAMUR NE43
•
Max
Event message on exceeding the alarm set point without
monitoring to NAMUR NE43
•
Gradient
Gradient analysis event message of exceeding the
predefined signal change per time unit of the signal source
without monitoring to NAMUR NE43
•
Wet steam
Event message on wet steam alarm
•
Unit failure
Event message on a unit fault
Signal source Flow 1,
Heat flow 1,
Mass 1,
Flow 2, etc.
not used
Signal source for the selected alarm set points.
!
Note!
The number of signal sources is dependent on the number of
applications and inputs set up.
Switch threshold -19999 to 99999
0.0
Smallest output value of the analogue output
Hysteresis -19999 to 99999
0.0
Input of the return switch threshold of the alarm set point. This
is in order to avoid hunting on the alarm set point.
Time delay 0 to 99 s
0 s
Time span for the alarm set point condition before it is
displayed. Suppression of spikes in the sensor signal.
Gradient -
∆
x -19999 to 99999
0.0
Counter values for the signal change for the gradient analysis
(rise function)
Gradient -
∆
t 0 to 100 s
0 s
Time interval for the signal change in the gradient analysis
Gradient -return value -19999 to 99999
0
Return switch threshold for the gradient analysis
Event text - alarm on The alarm set point violation (exceeding value) can be
allocated an event text. Dependent on the settings this will
appear in the event buffer and the display (see ’Event text
alarm message’)
Event text - alarm off The alarm set point violation (undercut value) can be allocated
an event text. Dependent on the settings this will appear in the
event buffer and the display (see ’Event text alarm message’)
Function (Menu
address) Parameter set-up Description