Simex SWE-N55L, User Manual

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User manual - METER SWE-N55L
“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 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 “SEtP” + ”HYSt”,
“SEt2” + ”HYSt”, “SEtP” - ”HYSt” or “SEt2” - ”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 its state).
“modE”
- relay operation mode:
“noAc” - the relay is not active (doesn’t change state)
“on” - one threshold mode, the relay turns ON when input signal exceeds from
the bottom SEtP+HYSt value , and turns OFF when exceeds from the top
SEtP-HYSt
,
“oFF”
- one threshold mode, the relay turns
ON
when input signal exceeds from
the top SEtP-HYSt value , and turns OFF when exceeds from the bottom
SEtP+HYSt ,
“in” - two threshold mode, the relay turns ON when the input signal exceeds
from the bottom
“
lower threshold
+ HYSt”
or from the top
“ bigger threshold - HYSt”
, and turns
OFF
when exceeds from the top
“ lower threshold - HYSt” or from the bottom
“ bigger thr HYSt” . 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, the relay turns
ON
when the input signal exceeds
from the top “ lower threshold - HYSt” or from the bottom
“ bigger thr HYSt” , and turns OFF when exceeds from the
bottom “ lower threshold + HYSt” or from the top
“ bigger threshold - HYSt” . The bigger threshold means bigger one of
“SEtP”
and
“SEt2”
thresholds, the lower threshold means lower one of
“SEtP”
and
“SEt2”
thresholds.
• LED lights when “ON” part of the relay is closed , independently of relay’s
mode.
• When power supply fail, unit sets relay state accordingly to “AL” parameter.
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