6.3.2
USING FIELDBUS THROUGH AN RS485 CABLE
Table 31: RS485 cable data
Item
Description
The plug type
2.5 mm
2
The cable type
STP (shielded twisted pair), Belden 9841 or almost the same
The cable length
So that it agrees with the fieldbus. See the fieldbus manual.
RS485 CABLING
1
Remove approximately 15 mm (0.59 in) of the grey
shield of the RS485 cable. Do this for the 2 fieldbus
cables.
a
)
Strip the cables for approximately 5 mm (0.20
in) to put them in the terminals. Do not keep
more than 10 mm (0.39 in) of the cable outside
the terminals.
b
)
Strip the cable at such a distance from the
terminal that you can attach it to the frame
with the grounding clamp for control cable.
Strip the cable at a maximum length of 15 mm
(0.59 in). Do not remove the aluminium shield
of the cable.
10
5
15 mm
CONTROL UNIT
VACON · 99
24-HOUR S358 (0)201 212 575 · EMAIL: [email protected]
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