Technical specifications
3.3 Technical specifications of active field distributors AFD4 (6ES7157-0AG81-0XA0)
Active field distributors AFD4, AFD4 (FM), AFD8 and AFS
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Product Information, 02/2015, A5E03775304-AC
Dimension W x H x D (mm)
220 x 120 x 83; without cable gland
Mounting dimensions (mm)
204 x 82
Weight
2000 g
Supply voltages
Description
By bus; no auxiliary power necessary
Rated value
•
Low limit of permitted range (DC)
16 V
•
High limit of permitted range (DC)
32 V
•
Polarity reversal protection
Yes; in conjunction with FDC 157
•
Overvoltage protection
No
Power consumption
•
Power consumption at no-load
24 mA
•
Power consumption
24 mA + total current of all field devices
•
Additional power consumption of the AFD4 at
end of line
30 mA
•
Power consumption at max. current output
per spur line
264 mA
Power loss
•
Power loss, min.
384 mW
•
Power loss, max.
3.2 W
Interfaces
PROFIBUS PA
Yes
FOUNDATION Fieldbus H1
Yes
Connections
Main cables
Quantity
2
Connection terminals (internal)
Screw-type terminals (2-pin)
Cable gland (enclosure)
M16
Cable type
Type A
•
Min. cable diameter
4 mm
•
Max. cable diameter
9 mm
•
Min. conductor cross-section
0.2 mm
2
•
Max. conductor cross-section
2.5 mm
2
Automatic bus termination
Yes
Maximum permitted continuous current on main
line
1 A
Spur lines
Number n
4
Number of connectable field devices
4
Connection terminals
Screw-type terminals (2-pin)
