Lumel RE72 User Manual

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Relative lower
[ dwlo]
Relative internal
[dwin]
Relative external
[dwou]
Fig. 22. Kinds of alarms
sp
aLdu (>0)
aLdu (<0)
The set point value for absolute alarms is the value defi ned
by the ax.sp, parameter, and for relative alarms, it is the deviation from
the set point value in the main channel - ax.du parameter. The alarm
hysteresis , i.e. the zone around the set point value, in which the output
state is not changed, is defi ned by the ax.Hy parameter.
One can set the alarm latch, i.e. the memorizing of the
alarm state after stopping alarm conditions (parameter ax.lt= on).
The erasing of alarm memory can be made by the simultaneous pressure
of and push-buttons in the normal working mode or
interface.

Lumel RE72 Specifications

General

Brand	Lumel
Model	RE72
Category	Controller
Language	English