42
FEM630 |
ELECTROMAGNETIC FLOWMETER | OI/FEM630-EN REV. A
Active current output V3 / V4
When the ‘loop power supply 24 V DC, blue’ plug-in card is
used, the current output on the plug-in card can also be wired
as the active current output.
Connection versions digital output 41 / 42, 51 / 52
Depending on the wiring of digital outputs DO 41 / 42 and 51
/ 52, they can be used parallel or only individually. The
electrical isolation between the digital outputs also depends
on the wiring.
Digital input V3 / V4 active
When the ‘loop power supply 24 V DC, blue’ plug-in card is
used, the current output on the plug-in card can also be wired
as the active current output.
6 . . .Electrical connections
. . .Pin assignment
‘Loop power supply (blue)’ plug-in card in slot 1
‘Passive current output (red)’ plug-in card in slot 2
‘Loop power supply (blue)’ plug-in card in slot 1
‘Passive digital input (yellow)’ plug-in card in slot 2
A
B
A
B
G11742-01
A
V2-
V1+
I
E
+24 V
, max. 25 mA
DC
0V
4 ... 20 mA
V3+
V4-
B
OC1
OC2
R
B
Figure 51 Active current output V3 / V4 (example)
Figure 53 Connection versions digital
output 41 / 42 and 51 / 52
Figure 52 Active digital output V3 / V4 (example)
G11914
A
V2-
V1+
I
E
+24 V
, max. 25 mA
DC
0V
B
V4-
V3+
OC2
OC1
G12392
A
41+
51+
I
E
42-/
52-
R
B
U
B
R
B
012345
1
012345
2
B
41+
51+
I
E
42-/
52-
R
B
+
-
U
B
+
-
R
B
012345
2
R
B
012345
1
C
41+
51+
I
E
42-/
52-
U
B
+
-
012345
R
B
D
41+
51+
I
E
42-/
52-
U
B
+
-
012345
DO 41 / 42 and 51 / 52 can be
used parallel
DO 41 / 42 and 51 / 52
electrically isolated
A
Yes
No
B
Yes
Yes
C
No, only DO 41 / 42 can be used
No
D
No, only DO 51 / 52 can be used
No
Table 1 Connection versions digital output
