•
•
Maximum cable thickness (mm
2
)
4.4 Cable Requirements for LON Type Option Boards
Up to 64 FTT-10 transceiver nodes are allowed per network segment. Individual segments can be connected together with a router.
See the following table for cable types and cable lengths recommended for FTT-10.
Even if unshielded cable types are recommended to be used with this type of transceiver, it is still highly recommended to use only
shielded cables with AC drives. To ensure bus operation, pay attention to proper grounding of the shield. Minimum cable length of
1 meter between two stations is recommended. For LonWorks, use, for example, the cables listed in the following table.
Table 7: Recommended Cable Types and Lengths
Maximum doubly terminated
bus length
Maximum free topology
wire length
Maximum node-to- node
distance
Belden 85102 (unshielded)
Belden 8471 LONAK
2 x 1.3 (unshielded)
Level IV, 22 AWG LONAK
2 x 2 x 0.65 (unshielded)
JY (St) Y 2 x 2 x 0.8 mm LONAK 2 x 2
x 0.8 (shielded)
4.5 Fieldbus Connectors
Option boards use two types of connectors. Either 5-pin screw connector or 9-pin Sub-D9 connector. The only exception is the
OPTC4 option board which uses 3-pin screw connector.
For PROFIBUS DP, the following connectors can be used (180° cable outlet):
Phoenix SUBCON-PLUS-PROFIB/AX/SC 27 44 38 0
Siemens PROFIBUS connector 6GK1 500-0EA02
Illustration 6: The 5-pin Bus Connector
Illustration 7: The Sud-D9 Connector
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Cabling
VACON® RS485 and CAN Bus Option Boards
Installation Guide