3.7 ALARM 1,2,3,4
A er enabling the alarm function the measurement source can be chosen. With the menu item
«
Alarmtype
»
the threshold range can be set. The alarm activation/deactivation can also be used to switch
other devices. With the additional alarms 1-4, durations and numbers of threshold events can be sent on
the bus. A er changing the alarm´s measurement source, both number counter and time counter are
reset to zero automatically. The counters can be set to zero by writing
«
1
»
to the communication object
no.33
«
Counter reset
»
or by writing
«
0
»
to one of the related communication objects
«
Duration 1
»
,
«
Duration 2
»
,
«
Duration 3
»
,
«
Duration 4
»
(objects no. 21, 24, 27, 30).
Figure 11.
Alarm 1 tab parameters (same applies to alarm 2, 3, 4)
ETS Parameter
Setting
{Factory Default}
Comment
Alarm 1
disable; enable
{
disable
}
Enable/disable group associations, measurement
and following settings
Measurement source
Output current;
Device temperature;
Output voltage
{
Output current
}
Selection of the measurement source
Threshold
10…800
{
640
}
for Output current
{
70
}
for Dev. Temp.
{
31
}
for Output voltage
Select threshold value to execute the
«
Behaviour
on alarm activation
»
Hysteresis
5…500
{5}
Select hysteresis interval value
Alarmtype
Threshold undercut;
Threshold exceeded
{
Threshold exceeded
}
Select threshold region either to lie above (limit
exceeded) or to lie below (limit undercut) the
threshold value
page 24
module-electronic.ru
