This menu presets the measurement input:
7.3.2. “inPt” menu
•
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.
• If option
“noCH”
is selected for
“AL”
parameter, behaviour of the relay may depend on
“FiLt”
parameter in some cases. If
“FiLt”
is set to big value and the input signal drops, result value of the
measure will change slow, causes of turning on or off relay due to thresholds values. The critical
situation is slowly detected, so it is impossible to predict the relay state in that situations.
• If parameter
“AL”
=
“on”
, the relay will be turned on in the critical situations, even if his parameter
“modE”
=
“noAC”
.
If parameter
“modE”
is set to
“on”
,
“oFF”
,
“in”
or
“Out”
the
“critical situation”
means that
allowable measurement range is exceeded.
If user defined characteristic is selected, and if number of defined points is lower than 2 then warning
“Errc” is displayed in measurement mode.
“in”
- two threshold mode, the relay turns
ON
when the input signal exceeds from the bottom
“l
ower 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 threshold
+ 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 threshold
+ 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.
“AL”
- this parameter defines the relay reaction when some critical situations occurs:
“noCH”
- relay do not change his state,
“on”
- relay will be turned
ON
,
“oFF”
- relay will be turned
OFF
.
“CHAr”
- this option presets type of the conversion characteristic, and can be set to:
“Lin”
- linear
“Sqr”
- square
“Sqrt”
- square root
}
“USEr”
- user defined characteristic. Maximal length 20 points. Every point is defined by user. Adding,
Editing and Deleting of points is done by options
“AddP”
,
“EdtP”
,
“dELP”
(
“InPt”
menu) respectively.
When one of those characteristics is chosen display
range is defined by
“Lo C”
and
“Hi C”
.
Loop Powered Display
250 SERIES
13
"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
,