Wiring Products - Mitsubishi Electric RJ71PB91V-U-IN-E User Manual

6.2

Wiring Products

PROFIBUS devices such as PROFIBUS cables and connectors should be prepared by users. For details on PROFIBUS
devices, refer to the following.
• PI: www.profibus.com
PROFIBUS cable
The following are the specifications and wiring specifications of PROFIBUS cables.
• PROFIBUS cable
Use PROFIBUS cables that satisfy the following specifications (compliant with TypeA (IEC 61158-2)).
Item
Applicable cable
Impedance
Capacity
Conductor resistance
Cross-sectional area
Wire diameter
Type
Material
Temperature rating
• Wiring specifications
RJ71PB91V
RxD/TxD-P
RxD/TxD-N
RxD/TxD-P: Red
RxD/TxD-N: Green
Connectors
Use D-sub 9-pin male connectors for PROFIBUS cables.
Use #4-40 UNC screws for the connector. Tighten the screws within the range of 0.20 to 0.28Nm.
Wiring specifications of terminating resistor
When the RJ71PB91V is the terminal station, use the connector with built-in bus terminator that satisfies the following wiring
specifications.
VP
RxD/TxD-P
RxD/TxD-N
DGND
6 WIRING
30
6.2 Wiring Products
Specifications
Shielded twisted pair cable
135 to 165 (f = 3 to 20MHz)
Less than 30pF/m
Less than 110/km
0.34 or larger
22 AWG
Stranded wire
Copper wire
60 or larger
R = 390Ω ± 2%, min1/4W
u
R = 220Ω ± 2%, min1/4W
tA
R = 390Ω ± 2%, min1/4W
d