Output Control
9
Output operation
♦
The analog output
operates according
to the values of parameters
Low Limit
,
High Limit
,
and
Output Value
.
♦
The alarm relay output
operates according
to the control algorithm
parameters -
Set Point
,
Direction
, and
Hysteresis
.
♦
When an error is detected,
the relay output deactivates
and the analog output
is held for a certain time,
defined by the parameter
Hold Time On Error
.
♦
The analog output signal
in case of an error depends
on the value of parameter
Output On Error
.
ON/OFF control algorithm
The static characteristic
of an alarm relay controlled
by an ON/OFF algorithm
is shown on the left drawing.
