ABB ProcessMaster FEM630 Operating Instructions Manual page 38

38
F EM63 0 | E L EC TR OM AG N E T I C FLOWM E T E R | O I/F E M6 3 0-EN RE V. A
6 . . .Electrical connections
. . .Pin assignment
Digital output 41 / 42, 51 / 52
Can be configured as pulse, frequency or binary output via
on-site software.
A
I E
41+
012345
51+
42-/
52-
B
I E
41+
R
B
51+
42-/
52-
A
Digital output 41 / 42, 51 / 52 passive as a pulse or frequency
output
B
Passive digital output 51 / 52 as binary output
Figure 41 (I = internal, E = external, R
Pulse / frequency output (passive)
Terminals
Output 'closed'
Output 'open'
f
max
Pulse width
Binary output (passive)
Terminals
Output 'closed'
Output 'open'
Switching function
Note
• Terminals 42 / 52 have the same potential. Digital
outputs DO 41 / 42 and DO 51 / 52 are not electrically
isolated from each other. If an additional electrically
isolated digital output is required, a corresponding plug-
in module must be used.
• If you are using a mechanical counter, we recommend
setting a pulse width of ≥ 30 ms and a maximum
frequency of f ≤ 30 Hz.
max
R
B
R
B
012345
16...30 V DC
= load)
B
41 / 42, 51 / 52
0 V ≤ UCEL ≤ 3 V
For f < 2.5 kHz: 2 mA < I
For f > 2.5 kHz: 10 mA < I
16 V ≤ U
CEH
0 mA ≤ I
0.1 to 2000 ms
41 / 42, 51 / 52
0 V ≤ U
2 mA ≤ I
16 V ≤ U
CEH
0 mA ≤ I
Parameterization possible.
See Menu: Input/Output on page 87.
Current output V1 / V2, V3 / V4 (plug-in module)
Up to two additional plug-in modules can be implemented via
the 'Passive current output (red)' option module.
A
U
CE
R
B
I
CE
I
V1+
V2-
U
CE A
R
Current output V1 / V2, passive
B
I
CE
B
Current output V3 / V4, passive
Figure 42 (I = internal, E = external, R
The plug-in module can be used in slot OC1 and OC2.
G11597-02
600
500
400
300
200
100
0
0 5
< 30 mA
CEL
< 30 mA
Permissible source voltage U
CEL
≤ 30 V DC
resistance R where I
B
≤ 0.2 mA
CEH
Figure 43 Source voltage for passive outputs
10.5 kHz
Passive current output
Terminals
≤ 3 V
Output signal
CEL
≤ 30 mA
CEL
Load R
B
≤ 30 V DC
Source voltage Uq*
≤ 0.2 mA
CEH
Measuring error
Resolution
*The source voltage U
an additional area.
B
E
R
B
= load)
B
10 15 20 25
Uq [V]
for passive outputs in relation to load
q
= 22 mA. = Permissible range
max
is dependent of the load R
q
I E
V3+ R
B
V4-
G11897-02
30 35
G10323-02
V1 / V2, V3 / V4
4 to 20 mA
250 Ω ≤ RB ≤ 600 Ω
13 V ≤ Uq ≤ 30 V
< 0.1 % of measured value
0.4 µA per digit
and must be placed in
B