IFM efector 160 LK7, Руководство по эксплуатации

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Minimum level monitoring with prewarning and alarm
If the level is below rP1, output 1 switches until liquid is refilled. If SP1
is reached again, output 1 switches back.
If the level is above SP2, output 2 switches. If the level falls below rP2
or if there is a wire break, output 2 switches back.
By setting SP1 the maximum level can be controlled/monitored: The
value of SP1 determines up to which level (max) is to be refilled. When
the maximum level is reached, this is signalled by the LED I going out
and output 1 switching off.
Page 27
Hydraulic vessel
Applications
ENGLISH
t
L
SP1
rP1
1
0
OFS
OUT1
Hnc
1
0
OUT2
Hno
SP2
rP2
display value
prewarning alarm
Switching output 1: prewarning
slightly above rP1 (to suppress wave movements)
below preset level
→
prewarning, start refilling
hysteresis function, normally closed ( Hnc )
Switching output 2: alarm
min. value reached again
→
alarm reset
below min. value
→
alarm
hysteresis function, normally open ( Hno )