Keller CellaCast PX 80, Руководство по эксплуатации

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Operating instructions CellaCast PX 8x
12.3 Switching threshold OUT 1
OUT1 changes its switching status when the configured upper or lower thersholds
[
d1.SP,d1.rP
] are exceeded� Source
d1.S
specifies the signal that is
output at OUT1�
• Two-colur mode [
dI
] → [
dI. s
] =
q
First, the switching point [ d1.SP ] is set in °C and °F and then the reset point
[
d1.rP
]� When changing [
d1.SP
], the [
d1.rP
] also changes so that the
difference remains the same� If the [
d1.SP
] is reduced to such an extent that
the distance can no longer be maintained (as the [ d1.rP ] would otherwise
move below its minimum), the [ d1.rP ] is increased to its minimum� If [ d1.SP ]
is subsequently increased again, [ d1.rP ] is also increased again immediately�
The minimum distance between [
d1.SP
] and [
d1.rP
] is 1 K�
12.4 Output signal
The following output functions can be selected:
• Normally open contact [
d1
] → [
d1.Fn
] =
hno
hysteresis function, nor-
mally open or rather Fno window function, normally open
• Normally closed contact [
d1
] → [
d1.Fn
] =
hnc
hysteresis function,
normally closed or rather Fnc windows function, normally closed
12.5 Switch on delay
Once the sensor has detected a temperature which exceeds the switching thresh-
old [
d1.SP
] the time delay [
d1.dS
] starts running� When this delay period
has elapsed, the output OUT 1 activates switching� This status is sustained until
the lower threshold [ d1.rP ] is violated� If this occurs before the time delay has
elapsed, the delay will reset� This function can be used, for example, to supress
spurious impulse signals at the output�
•
Switching on delay: [ d1 ] → [ d1.dS ] = 0���10 sec�
12.6 Switch off delay
To make sure the output is correctly identified, e�g� by downstream control system,
the output can be lengthened�
•
Switch off delay: [
d1
] → [
d1.dr
] = 0���10 sec�