Dependency between the switch threshold and hysteresis on
MIN (minimum safety) and MAX (maximum safety):
On minimum safety a set point infringement remains active so
long as the measured signal is smaller than the switch
threshold plus hysteresis (
SETP + HYST), on maximum safety
the value of the switch threshold minus (
SETP - HYST).
À Relay de-energised (no power)
Measurement value
Measurement value
SETP
HYST
MIN
SETP
MAX
HYST
Parameter Setting up selections
Default
settings
Actual
Time delay
DELY1 / DELY2
Setting up the limit event
time delay after reaching
the set point.
Value:
0to99s
The time delay can be set
up in 1 s steps.
0
On an alarm message the time delay is “0" !
Process display
59
EN-RIA02.CHP
Thu Jan 11 14:04:46 2001
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