Siemens SIMATIC AFD4 - Page 34

Technical specifications
3.3 Technical specifications of active field distributors AFD4 (6ES7157-0AG81-0XA0)
Active field distributors AFD4, AFD4 (FM), AFD8 and AFS
34 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)