Monitoring of the acceptable range (alarm) and level control
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 below rP2 or above SP2 or if there is a wire break, output
2 switches OFF (
→
alarm).
The logical operation between the outputs 1 and 2 indicates whether
there is overflow or the actual level is below the minimum level.
• Overflow: output 1 switched off and output 2 switched off.
• Below min. value: output 1 switched on and output 2 switched off.
Page 29
Storage vessel
Applications
ENGLISH
L
SP2
SP1
1
0
OFS
OUT1
Hnc
1
0
OUT2
Fno
rP1
rP2
t
display value
refill
min. monitoring
max. monitoring
Switching output 1: refilling
upper preset value reached
→
finish refilling
below lower preset value
→
start refilling
hysteresis function, normally closed (
Hnc
)
Switching output 2: safety function min - max
max. value exceeded
→
alarm
below min. value
→
alarm
window function, normally open (
Fno
)
Содержание efector 160 LK7
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