Ex1 ex2 c sa a b sb – Yokogawa ADMAG AXF User Manual
Page 46
IM 01E20D01-01E
4-12
4. WIRING
A
B
C
EX1
EX2
Terminal
Symbols
Description
F042401.EPS
Flow signal output
Excitation current input
Functional grounding
(Only for explosion proof type)
Protective grounding
(Oitside of the terminal)
Figure 4.2.10 Terminal Configuration (Explosion proof
Type, Size 2.5 to 400 mm (0.1 to 16 in.))
F040211.EPS
Terminal
Symbols
A
B
C
EX1
EX2
Flow signal output
Excitation current input
Protective grounding
(Outside of the terminal)
Description
Figure 4.2.11 Terminal Configuration (General-purpose
Use, Submersible Type, Size 500 to 1000
mm (20 to 40 in.))
F040212.EPS
Terminal
Symbols
A
B
C
EX1
EX2
Flow signal output
Excitation current input
Protective grounding
(Outside of the terminal)
Description
C
B
A
EX2
EX1
Figure 4.2.12 Terminal Configuration (General-purpose
Use, submersible Type, Size 1100 to 2600
mm (44 to 104 in.))
(3) Wiring the Remote Flowtube (General-
Purpose Use, Submersible Type, Sanitary
Type, Size 2.5 to 400 mm (0.1 to 16 in.))
with Converters
1) Connection with the AXFA11 converter
Connect wiring as shown in the figure below.
I+
I–
CURRENT OUT
AL+
AL–
C
SA
A
B
SB
ALARM OUT
N/–
L/+
POWER SUPPLY
EX2
EX1
EXCIT ATION
P–
SI1+
SI2+
COM
P+
PULSE OUT
STATUS IN
SIGNAL
SO1+
COM
SO2+
STATUS OUT
FUSE
2.5A 250V
AXFA11 converter
Remote flowtube
AXFC dedicated
signal cable
Converter
Remote
flowtube
F0426.EPS
SA
A
B
SB
C
EX1
EX2
Taping*
A
B
Taping*
C
EX1
EX2
* Individually tape and insulate the
shields corresponding to SA and
SB on the remote flowtube side.
EX2
EX1
A
B
C
Excitation cable
Figure 4.2.13 Wiring Diagram
2) Connection with the AXFA14 converter
Connect wiring as shown in the figure below.
AXFC dedicated
signal cable
EX2
EX1
A
B
C
Excitation cable
EX1
EX2
C
SA
A
B
SB
F0427.EPS
Converter
Remote
flowtube
SA
A
B
SB
C
EX1
EX2
Taping*
A
B
Taping*
C
EX1
EX2
* Individually tape and insulate the
shields corresponding to SA and
SB on the remote flowtube side.
AXFA14 converter
Remote flowtube
Figure 4.2.14 Wiring Diagram