7.3.1.
“ rEL1
” menu
This menu allows to configure the operation mode of relays.
If there are few relay outputs available, then every output has its own configuration menu
(e.g. menu “
rEL2
” for relay “
R2
”). Principle of the relays operation is described in paragraph
CONTROL OF THE RELAY OUTPUTS
.
•
The relay outputs can be controlled depending 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 referring to this
relays are not available.
“SEtP”
- first threshold of the relay (range -999 ÷ 9999). Negative values can be input by
selecting a “-” sign on first digit (to change value use
[^]
and
[v]
buttons).
Threshold is the medium value of relay hysteresis.
“SEt2”
- second threshold of the relay (range -999 ÷ 9999). Negative values can be input
by selecting a “-” sign on first digit ( to change value use
[^]
and
[v]
buttons). 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 ÷ 999). Full hysteresis of the relay is equal to 2 times
“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
“SEtP” + “HYSt”,
“SEt2” + “HYSt”, “SEtP” - “HYSt”
or
“SEt2” - “HYSt”
does not exceed 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:
“noAC”
- the relay is not active (permanent turned off)
“on”
- one threshold mode, the relay is turned
ON
when input signal exceeds
SEtP
+ HYSt
value
,
and is turned off back when the input signal became
lower than
SEtP – HYSt
,
“oFF”
- one threshold mode, the relay is turned
OFF
when input signal exceeds
SEtP
+
HYSt
value
,
and is turned on back when the input signal became
lower than
SEtP – 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
“SEtP”
and
“SEt2”
thresholds, the
lower threshold
” means lower one of
“SEtP”
and
“SEt2”
thresholds.
“out”
- two threshold mode, relay is turned
ON
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
28
i
i
Содержание SUR-W410
Страница 59: ...User manual METER SUR W410 59...
