User manual - RATEMETER STI-73
•
The relay outputs and LEDs (named
R
) can be controlled depend on both - the
current value and the peak value (when peak detection is active) of the input
signal.
•
If device is not equipped with one or more relay outputs, menus refer to this
relays are available, but apply to LED indicators only. In such case LEDs
indicates exceeding of particular thresholds.
“SEt P”
- first threshold of the relay (range 0 ÷ 999999).
Threshold is the medium value of
relay hysteresis.
“SEt P2”
- second threshold of the relay (range 0 ÷ 999999). This threshold is accessible
when
”modE”
parameter is set to
„in”
or
„out”
value.
Threshold is the medium
value of relay hysteresis.
“HYSt”
- hysteresis of relay (range 0 ÷ 99999). Full hysteresis of the relay is equal to 2x
“HYSt”
parameter. The relay state can change when an input signal is out of
threshold-hysteresis
to
thhysteresis
zone.
Presented parameters should be set to ensure that
”SEt P” + ”HYSt”,
”SEt P2” + ”HYSt”, ”SEt P” - ”HYSt”
or
”SEt P2” - ”HYSt”
do not exceeds the
measure range. Additionally, in two threshold mode (“
modE
”= „
in
” or „
out
”), the
hysteresis for both thresholds must not cover each other (in other case relay can't
change his state).
“modE”
- relay operation mode:
“noACt”
- the relay is not active (permanent turned off)
“on”
- one threshold mode, the relay is turned
ON
when input signal exceeds
SEt P
+
HYSt
value
,
and is turned off back when the input signal became
lower than
SEt P - HYSt
,
“oFF”
- one threshold mode, the relay is turned
OFF
when input signal exceeds
SEt P
+
HYSt
value
,
and is turned on back when the input signal became
lower than
SEt P - HYSt
,
“in”
- two threshold mode, the relay is turned
ON
when the input signal is
bigger than “
lower threshold
+
HYSt
”
and lower than “
bigger
threshold
-
HYSt
”, and turned off when the input signal is contained in
the second zone. The
bigger threshold
means bigger one of
“SEt P”
and
“SEt P2”
thresholds, the
lower threshold
” means lower one of
“SEt P”
and
“SEt P2”
thresholds.
“Out”
- two threshold mode, relay is turned
OFF
when the input value is bigger
than “
bigger threshold
+
HYSt
”
and lower than “
lower
threshold
–
HYSt
”, and turned on when the input signal is contained in the second
zone. The
bigger threshold
means bigger one of
“SEt P”
and
“SEt P2”
thresholds, the
lower threshold
means lower one of
“SEt P”
and
“SEt P2”
thresholds.
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