ABB FSM4000 Instrucciónes De Puesta En Marcha página 78

Electrical connections
Pulse output
Pulse output active
Function: active/passive, selectable via jumper (see "Commissioning" in operating instructions)
fmax: 5 kHz,
fmin: 0.00016 Hz
Setting range: Pulses/unit, pulse width (observe dynamic limits)
150 Ω  Load < 10 kΩ
Active:
500 Ω  Load < 10 kΩ
"closed": 0 V  UC EL  2 V, 2 mA  I CEL  220 mA
Passive:
"open": 16 V  U CEH  30 V, 0 mA  I CEH  2 mA
Terminals: 51, 52
Fig. 34: Pulse output, active and passive, optocoupler
PROFIBUS PA / FOUNDATION Fieldbus
I E
PA-
98
PA+
97
1
Fig. 35
Bus termination for S4 transmitter
To terminate the bus if the instrument is at the end of the bus cable, the termination components in the S4 transmitter can be used. To do so,
close both hook switches in the connection area of the transmitter.
Important
If the transmitter module is removed, bus termination is also canceled.
Connection board for field housing unit
Fig. 36
32 - EN
Pulse width  50 ms, max. pulse frequency  3 Hz,
Pulse width  0.1 ms, max. pulse frequency: 5 kHz
I E
FF-
98
R
FF+
C
97
2
G00248
3 U+ 2S 2 1 1S U- 3 16 6 7
Pulse output, passive, optocoupler
I
U
*
R CE
B
I
CE
The resistance R and condenser C form the bus termination. They
must be installed when the device is connected to the
end of the entire bus cable.
R = 100 Ω; C = 1 µF
R
1PROFIBUS PA
C
2FOUNDATION Fieldbus
I = Internal
E = external
41 42
Hook switches for
bus termination must be closed
FSM4000
E
*
R
B
51
52
97 98 M3 M1
G00249
+ 16 ... 30 V DC
-
G00247
D184B141U03