ABB FEX300 - Page 50

Electrical connections
50 FEX300, FEX500 OI/FEX300/FEX500-EN
Digital outputs DO1 and DO2, separate forward and reverse
pulses
Digital outputs DO1 and DO2, separate forward and reverse
pulses (alternative connection)
G00791
24V+
IE
51
52
41
42
24V
IE
51
52
41
42
V
+
-
I = internal, E = external
Fig. 47
Digital input for external output switch-off or external totalizer reset
I = internal, E = external
Fig. 48
PROFIBUS PA and FOUNDATION Fieldbus
G00248
2
FF-
FF+
R
C
1
97
PA-
R
C
PA+
98
97
98
I EI E
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
1 PROFIBUS PA
2 FOUNDATION Fieldbus
I = internal, E = external
Fig. 49
Connection via M12 plug (only for PROFIBUS PA in non-hazardous areas)
G01003
1
2
34
Pin assignment
(Front view showing pin insert and pins)
PIN 1 = PA+
PIN 2 = nc
PIN 3 = PA-
PIN 4 = shield
Fig. 50
Important (Notice)
For additional information on configuring the current output, see chapter 6.2 „Configuring the
curren
t output“