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Figure 44
Fonctionnement avec alimentation externe (en sécurité intrinsèque)
FLOWSIC500 externally powered (IS) and connected to electronic volume corrector,
L N PE
L
N
L
N
L
N
2 1
3 4
M12connector
B-coded
1 - power supply
2 + power supply
3 - DO 1 (passive)
4 + DO 1 (passive)
100
RS485 externally powered
Safe area
EVC
intrinsically safe
[Ex ia]
data+
RS485
data-
intrinsically safe
power supply
U+
[Ex ia]
U-
intrinsically safe
power supply
U+
[Ex ia]
U-
2 1
3 4
M12 connector
A-coded
1 + power supply
2 + data (RS485 A)
3 -
4 -
Hazardous area
FLOWSIC500
intrinsically safe
[Ex ia]
M12 connector A-coded
2 + data (RS485)
- data (RS485)
1 + power supply
- power supply
M12 connector B-coded
2 + power supply
1 - power supply
3 - DO 1 (passive)
4 + DO 1 (passive)
PE
For safety parameters see
control drawing 9185616 for the USA and Canada
and control drawing 9185617 for the EU.
In the USA install in accordance with the NEC (ANSI/NFPA70),
in Canada install in accordance with CEC part 1,
in the EU install in accordance with EN 60079-14.
National regulations must be observed!
WARNING!
Incorrect cabling can cause the FLOWSIC500 to fail!
See Operating Instructions for further details!
PE
Attention!
RS485 is not electrically insulated, must be powered externally
and has no internal termination!
For enviroments with relevant eletromagnetic disturbance
and long cables, shielded cables are recommend.
FLOWSIC500 · Manuel d'utilisation · 8015392 V 2.1 · © SICK AG
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