ABB FSM4000 Series Commissioning Instruction page 29

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)
Active: 150 Ω ≤ Load < 10 kΩ
500 Ω ≤ Load < 10 kΩ
Passive: "closed": 0 V ≤ UC
"open": 16 V ≤ U
Terminals: 51, 52
Fig. 32: Pulse output, active and passive, optocoupler
PROFIBUS PA / FOUNDATION Fieldbus
I E
PA-
98
PA+
97
1
Fig. 33
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. 34
D184B141U02
Pulse width ≤ 50 ms, max. pulse frequency ≤ 3 Hz,
Pulse width ≥ 0.1 ms, max. pulse frequency: 5 kHz
≤ 2 V, 2 mA ≤ I
EL CEL
≤ 30 V, 0 mA ≤ I
CEH CEH
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
*
CE
R
B
I
CE
≤ 220 mA
≤ 2 mA
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
Electrical connection
E
*
R
B
51
52
97 98 M3 M1
G00249
+ 16 ... 30 V DC
-
G00247
EN - 27