Safety Specifications For Inputs And Outputs - ABB Sensyflow FMT500-IG Inbetriebnahmeanleitung

11.2.5 Safety specifications for inputs and outputs

Analog / HART communication
Output circuit ATEX design: intrinsically safe Ex ib IIC / IIB
FM Design
IS acc. to control drawings
V14224-6 ... 1212 ... IS, V14224-6 ... 2212 ... IS,
V14224-7 ... 1112 ... IS, V14224-7 ... 2112 ... IS
Current output
U
o
Active
I
o
Terminal 31 + 32
[mA]
78,3
Characteristic curve: linear
C
o
Connect to passive, intrinsically safe circuits only.
Terminal 32 is connected to potential equalization (PA).
Use only approved separators / barriers.
Digital output U
i
Passive
I = 30 mA
i
D 1: Terminals 33 + 34
P
out
i
D : Terminals 35 + 36
out2
Digital input U
i
Passive
I = 250 mA
i
D 1: Terminals 37 + 38
P
in
i
D 2: Terminals 39 + 40
in
Change from one to two columns
Special Requirements:
The output circuits are designed in such a way that they can be
connected to both intrinsically safe and non-intrinsically safe circuits. It
is not permitted to combine intrinsically safe and non-intrinsically safe
circuits.
The rated voltage of the non-intrinsically-safe circuits is:
- for ATEX versions U = 60 V
m
- for FM versions U = 90 V (XP, NI, DIP).
m
• Make sure that the terminal cover over the power supply
connection is tightly closed. With intrinsically safe output circuits,
the terminal box can be opened.
• For ATEX designs, use of the enclosed cable glands for the
output circuits in accordance with the type of protection:
intrinsically safe = blue; non-intrinsically safe = black.
Change from one to two columns
PROFIBUS DPV1 communication
Output circuit
PROFIBUS DP
RS 485_IS-Interface
Terminals X2, X3
Terminal A/B
CI/FMT500-IG-X1
= 17,2 V U = 30 V
i
P
o
[mW]
337
= 353 nF, L = 4 mH
o
= 15 V
= 115 mW
= 30 V
= 1,1 W
ATEX design: intrinsically safe Ex ib IIC / IIB
FM Design
IS acc. to control drawings
V14224-6 ... 1222 ..., V14224-6 ... 2222 ...,
V14224-7 ... 1122 ..., V14224-7 ... 2122 ...
U = ± 3,72 V
o
I
o
[mA]
± 155
Min. cable cross section
Max. input voltage U :
i
Max. input current I :
i
Electrical isolation of RS 485_IS PROFIBUS fieldbus signals A and B
Cable shield is connected to potential equalization
Use approved RS 485_IS interface / barriers only to disconnect intrinsically safe and non-intrinsically safe
PROFIBUS connections
Sensyflow FMT500-IG
I = 100 mA
i
Ex ib IIC
C [nF] L [mH]
i i
2,0 0,25
C = 2,0 nF
i
L = 0,250 mH
i
C = 2,0 nF
i
L = 0,250 mH
i
• The sensor and the transmitter housing must be connected to the
potential equalization. For intrinsically safe current outputs,
equipotential bonding needs to be in place all the way along the
circuits.
• Take into consideration the corrosion resistance of the meter tube
materials to the measuring medium. This is the user's
responsibility.
Note:
The values indicated here are taken from the respective certificates.
The specification and supplements to the respective valid approval
(ATEX, FM) are decisive.
P
o
[mW]
± 144,2
0,2 mm
± 4,20 V
± 2,66 A
Ex relevant specifications
ATEX design: not intrinsically safe
U = 60 V
max
FM Design
XP, NI, DIP acc. to control drawings
V14224-6 ... 1212 ..., V14224-6 ... 2212 ...,
V14224-7 ... 1112 ..., V14224-7 ... 2112 ...
U = 90 V
max
U = 30 V
B
I = 30 mA
B
U = 30 V
B
I = 100 mA
B
U = 30 V
B
I = 100 mA
B
EEx ib IIC/IIB
C'[nF/km] L'/R'[mH/Ω]
≤ 250 ≤ 28,5
C : 0 nF
i
L : 0 mH
i
EN - 53
107