Siemens SITRANS LR460 Quick Start Manual page 73

Êáëùäßùóç ôïõ SITRANS LR460 HART
(óõíÝ÷åéá áðü Óýíäåóç ôïõ SITRANS LR460
Óçìåßùóç: Ôï LR460 HART äåí ÷ñåéÜæåôáé ñåýìá áðü ôï âñü÷ï 4-20 mA.
ÐñáãìáôïðïéÞóôå ôçí åãêáôÜóôáóç óýìöùíá ìå ôçí ðáñÜãñáöï Êáëùäßùóç êáé
åãêáôÜóôáóç óôïí Ïäçãü åöáñìïãÞò HART (áñéèìüò ðáñáããåëßáò HCF_LIT-34), ðïõ
äéáôßèåôáé óôçí ôïðïèåóßá: http://www.hartcomm.org/technical/doclist.html.
¸êäïóç AC
óöéãêôÞñáò
êáëùäßïõ
3 4 5 6 7 8
Rated temperature of
connection cables must
mA
exceed maximum ambient
temperature by at least 15 K
Óýíäåóç HART
LR460
Óçìåéþóåéò:
•
•
4.
ÓõíäÝóôå ôïí áãùãü ãåßùóçò ôçò ôñïöïäïóßáò óôïí
áêñïäÝêôç ãåßùóçò
óôÞñéîçò, óôï åóùôåñéêü ôïõ ðåñéâëÞìáôïò.
Ðñïóáñìüóôå ôï ìÞêïò ôïõ êáëùäßïõ, Ýôóé þóôå ï
áãùãüò ãåßùóçò íá áðïóõíäÝåôáé ôåëåõôáßïò óå
ðåñßðôùóç ðïõ ôñáâç÷ôåß ôï êáëþäéï
5. Óößîôå ôï óôõðéïèëßðôç êáëùäßïõ êáé åëÝãîôå ôï
ôæüãï (ôñáâÞîôå êáé ðåñéóôñÝøôå).
A5E32007360 SITRANS LR460 – ÐÅÑÉËÇÐÔÉÊÏ ÅÃ×ÅÉÑÉÄÉÏ ÏÄÇÃÉÙÍ Óåëßäá EL-7
¸êäïóç DC
áêñïäÝêôçò
ãåßùóçò
1 2
L L
1 2
N
ÔõðéêÞ äéáìüñöùóç PLC/mA ìå HART
PLC ìå êÜñôá
åéóüäïõ mA
R = 250 
HART
Communicator
375
Ãéá áðñüóêïðôç åðéêïéíùíßá ìÝóù ôïõ ðñùôïêüëëïõ HART,
åíäÝ÷åôáé íá ÷ñåéáóôåß áíôéóôÜôçò 250 Ohm, åÜí ç áíôßóôáóç
âñü÷ïõ åßíáé ìéêñüôåñç áðü 250 Ohm.
Ìüíï ìßá óõóêåõÞ åðéêïéíùíßáò HART èá ðñÝðåé íá åéóÜãåôáé óôï
âñü÷ï.
ôïõ ìåôáëëéêïý âñá÷ßïíá
.
óôç óåëßäá 6
)
óöéãêôÞñáò
êáëùäßïõ
3 4 5 6 7 8
Rated temperature of
connection cables must
mA
exceed maximum ambient
temperature by at least 15 K
PC/öïñçôüò õðïëïãéóôÞò
ìå ìüíôåì HART ðïõ
åêôåëåß ðñüãñáììá PDM
áêñïäÝêôçò
ãåßùóçò
1 2
19-30 V
óôõðéïèëßðôå
ò êáëùäßùí
áêñïäÝêôçò
ãåßùóçò