Process display
5.4 Alarm set points/fault monitoring
If the unit is fitted with the alarm relay option then in addition to
the two LEDs each set point is also allocated an alarm relay
with a changeover contact.
On an alarm condition and fault the allocated relay switches to
its idle position.
The following description is valid for the alarm set points
and
Parameter
Operation mode
Selection of operation
mode of the alarm set
points and fault monitor
Set point
Enter the set point
Hysteresis
Enter the set point
hysteresis
58
LIM2
Setting up selections
MODE1 / MODE2
OFF
Set point and fault
monitor inactive
MIN
Minimum safety:
Event message on
undercutting the set
point and in fault
condition.
MAX
Maximum safety:
Event message on
exceeding the set
point and in fault
condition.
ALARM
Event message only
in fault condition, no
set point monitor.
MIN-
Minimum safety:
Event message once
the switch threshold
is undercut.
MAX-
Maximum safety:
Event message once
the switch threshold
is exceeded.
SETP1 / SETP2
Value:
-19999 to 99999
HYST1 / HYST2
Value:
-19999 to 99999
LIM1 /
LIM2
Default
Actual
settings
OFF
0,0
0,0
LIM1