Mitsubishi Electric Melsec Q Series User Manual page 163

5
SETTINGS AND PROCEDURES BEFORE SYSTEM
OPERATION
(2) PROFIBUS cable
The following shows the PROFIBUS cable and wiring specifications.
(a) PROFIBUS cable
(b) Wiring specifications
(3) Connector
Use a D-sub 9-pin male connector for the PROFIBUS cable.
The applicable screw size is #4-40 UNC.
Use a PROFIBUS cable that meets the following specifications (Type A (IEC
61158-2) compliant).
Item
Applicable cable
Impedance
Capacity
Conductor resistance
Cross-sectional area
Diameter
Type
Material
Temperature rating
QJ71PB92V
SHIELD
RxD/TxD-P (red)
RxD/TxD-N (green)
Figure 5.6 PROFIBUS Cable Wiring Specifications
5.5 Wiring
5.5.1 PROFIBUS cable wiring
Table5.7 PROFIBUS Cable
Transmission line
Shielded twisted pair cable
135 to 165 (f=3 to 20 MHz)
Less than 30 pF/m
Less than 110 /km
2
0.34mm or more
22AWG
Stranded
Copper
60°C or more
1
PROFIBUS cable
3
8
1
2
3
4
5
6
7
8
5
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