User manual - RATEMETER STI-N118
•
LEDs light when relays are closed
, independently of relays' mode.
•
When power supply fail, unit do not store relays state selected by RS-485
interface.
“t on”
- turn on delay time, the relay is turned on with delay equal
“t on”
if
the input value
exceeds appropriate
border value
(defined with
threshold
and
hysteresis
), at
least
“t on”
time.
“t on”
range 0 ÷ 99.9, defined with 0.1 sec. resolution. Unit of
this parameter is set by
“unit”
parameter.
“t oFF”
- turn off delay time, the relay is turned off with delay equal
“t oFF”
if
the input value
exceeds appropriate
border value
(defined with
threshold
and
hysteresis
), at
least
“t oFF”
time.
“t oFF”
range 0 ÷ 99.9, defined with 0.1 sec. resolution. Unit of
this parameter is set by
“unit”
parameter.
If time when the input signal exceeds some border value is shorter than
“t on”
or
“t oFF”
time, the relay do not change his state
(see paragraph:
CONTROL OF
THE RELAY OUTPUTS
).
“unit”
- unit of time for
“t on”
and
“t oFF”
parameters. Can be set on one of two values:
“min”
- minutes,
“SEC”
- seconds.
“ALArmS”
- this parameter defines the relay reaction when some critical situations
occurs:
“noCHAn”
- relay do not change his state,
“on”
- relay will be turned on,
“oFF”
- relay will be turned off.
If parameter
“modE”
is set to
“on”
,
“oFF”
,
“in”
or
“Out”
the “critical situation”
means that
permissible input frequency
is exceeded.
If parameter
“modE”
is set to
“
modbuS
”
, the “critical situation” means
communication delay (when no data is received) longer than
“mbtimE”
parameter
(see description:
“rS-485” menu
).
7.3.2.
“ inPUt
” menu
This menu contains options of pulse input configuration:
“FrEq”
- maximum permitted frequency of pulses delivered to the input. This parameter
is expressed in Hz. And can be set to one of all values showed in
Minimum
permitted
duration time of Low and High states are related to every
value of
“FrEq”
parameter. If particular state is shorter than showed in
it is interpreted as disturbance and ignored.
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