NPN ind. cnimac
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na tom schematu je to krasne patrne
mesa karta prijde tam kde je LOAD
samozrejme predpokladam ze tam budes mit tu IO oddelovaci kartu nevim presne oznaceni
tam je tusim optoclen a prez nej LED opacne
takze kdyz ty dva draty das spravne tak to bude fungovat
kdyz to prohodis tak to nebude fungovat ale bude se ti rozsvecet led u toho konkretniho optoclenu
provozovat to bez te oddelovaci karty zasadne nedoporucuju
mesa karta prijde tam kde je LOAD
samozrejme predpokladam ze tam budes mit tu IO oddelovaci kartu nevim presne oznaceni
tam je tusim optoclen a prez nej LED opacne
takze kdyz ty dva draty das spravne tak to bude fungovat
kdyz to prohodis tak to nebude fungovat ale bude se ti rozsvecet led u toho konkretniho optoclenu
provozovat to bez te oddelovaci karty zasadne nedoporucuju
Vsechna prava na chyby vyhrazena (E)
- robokop
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FIELD INPUT CHARACTERISTICS
The 7I76 field inputs have a nominal input resistance of 10K Ohms to field power
ground. 7I76 inputs sense positive input voltages above a preset threshold. For best
general purpose use, default input threshold is 50% of the field power supply voltage with
10% hysteresis. That is with a 24V field voltage an input must be brought to 60% of 24V
= 14.4V to be sensed as high and then brought to 40% of 24V = 9.6V to be sensed as low.
These accurate thresholds and hysteresis allow high speed field signal detection while
maintaining excellent noise immunity.
WHY SINKING INPUTS
7I76 field inputs are of the sinking type. That is, external power must be applied to
the input to register as activated. This mode was chosen so that accidental grounding of
an input will not register as an activated input.
It is suggested that inputs like limit switches use normally closed switches with one
switch leg connected to field power and the other to the 7I76 input pin, so the normal
machine state (not at limits) is to have the inputs activated. This way, a open switch wire
or wire shorted to ground will cause a detectable machine fault.
The 7I76 field inputs have a nominal input resistance of 10K Ohms to field power
ground. 7I76 inputs sense positive input voltages above a preset threshold. For best
general purpose use, default input threshold is 50% of the field power supply voltage with
10% hysteresis. That is with a 24V field voltage an input must be brought to 60% of 24V
= 14.4V to be sensed as high and then brought to 40% of 24V = 9.6V to be sensed as low.
These accurate thresholds and hysteresis allow high speed field signal detection while
maintaining excellent noise immunity.
WHY SINKING INPUTS
7I76 field inputs are of the sinking type. That is, external power must be applied to
the input to register as activated. This mode was chosen so that accidental grounding of
an input will not register as an activated input.
It is suggested that inputs like limit switches use normally closed switches with one
switch leg connected to field power and the other to the 7I76 input pin, so the normal
machine state (not at limits) is to have the inputs activated. This way, a open switch wire
or wire shorted to ground will cause a detectable machine fault.
Vsechna prava na chyby vyhrazena (E)
- robokop
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- Příspěvky: 22975
- Registrován: 10. 7. 2006, 12:12
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takze mas jinou kartu nez jsem predpokladal
jestli teda dobre ctu manual viz vyse nejsou tyhle indukcaky kompatibilni
indukcak typu npn spina zatez ktera je trvale pripojena na napajeci napeti tak ze i tranzistorem uzemni
tvoje karta predpoklada aktivaci tim ze privedes ve spravnou chvili napeti na vstup mesy ktery je proti spolecne zemi
pouzij tedy jiny indukcak, rele, optoclen,.... aby jsi zajistil kompatibilitu
jestli teda dobre ctu manual viz vyse nejsou tyhle indukcaky kompatibilni
indukcak typu npn spina zatez ktera je trvale pripojena na napajeci napeti tak ze i tranzistorem uzemni
tvoje karta predpoklada aktivaci tim ze privedes ve spravnou chvili napeti na vstup mesy ktery je proti spolecne zemi
pouzij tedy jiny indukcak, rele, optoclen,.... aby jsi zajistil kompatibilitu
Vsechna prava na chyby vyhrazena (E)
u zapojování elektroniky to není zrovna rozumný postupJuro píše:V tom mám problém , že najskor pozriem zaklad manualu , potom robím a ked je problém , až potom čítam pozorne.

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