IDEAL
-
P
KOSMOS SERIE
www.ditel.es
22
Description
The relay output allows the IDEAL
-
P unit to carry out control operations and treatment of limit values by means of
an ON / OFF output that is already integrated in the indicator itself.
In general, the alarm is activated when the display value reaches the Setpoint value programmed by the user (the
indication on the display flashes). However, if the setpoint generator is activated, it can also be activated with a
value of the output signal or with the absolute value of the difference between the input signal and the output
signal. For the configuration of the same it will be necessary to determine also the mode of action.
RELAY OUTPUT
Description of the operating modes
HI, LO or HILO operating mode
In
HI
mode the output is activated when the value of the compared quantity, depending on the configuration,
exceeds the Setpoint value.
In
LO
mode, the output is activated when the value of this quantity falls below the entered Setpoint value.
In
HILO
mode, the output is activated when the value of this quantity is outside the range defined by the upper
and lower limits established by the Setpoint values "
SPHi
" and "
SPLo
" entered respectively.
Timing
On the alarm a configurable timed delay can be
entered in seconds from 0 to 99.9s.
The activation of the delay starts when the display
value passes through the set point '
SET'
, either in
ascending or descending direction, causing the
delay 'dly' in the activation of the output as can be
seen in the two examples of the figure.
Asymmetric hysteresis
Time delay in
HI
mode (SET1
-
OUT1) and in
LO
mode (SET2
-
OUT2).
On the alarm, a configurable delay can be entered
in display points from 0 to 9999. The position of the
decimal point is imposed by the programming
carried out previously.
The activation of the delay is carried out on the
deactivation flank or on the activation flank of the
output relay, depending on whether it is configured
in '
Hi
' mode or '
Lo
' mode respectively, causing the
delay 'hys 1' and 'hys 2', as can be seen in the two
examples of the figure.
Note that the activation of the output in '
Hi
' mode
and the deactivation of the output in '
Lo
' mode are
not altered by the hysteresis and are carried out
just at the moment in which, in each case, the
setpoint is reached '
SET1
' or '
SET2
'.
Hysteresis delay in
HI
mode (SET1
-
OUT1
-
hys 1)
and in
LO
mode (SET2
-
OUT2
-
hys 2).
OUT1
SET2
SET1
OUT2
hys 1
hys 2
OUT1
SET2
SET1
OUT2
dly
dly
dly
dly
