SI-INTERBUS User Guide
19
Issue Number: 1
Sa
fety
Introd
Sup
Mec
E
G
A
Non
Vi
S
Contr
Di
S
F
CM
D tool
Glo
ssa
Figure 5-4 Remote bus OUT wiring details
5.1
Interbus cable
Interbus cable has three twisted pairs plus overall shielding. The colours normally used
on Interbus networks are shown in
recommended to follow these wiring guidelines as this will make it easier to trace
possible wiring errors during commissioning.
5.2
SI-Interbus cable shield connections
The Remote Bus IN and Remote Bus OUT cable shields MUST be connected to the
shell of the connector. There is no requirement to connect the cable shields directly to
Ground at any other point in the Interbus network.
5.3
Interbus network termination
Termination resistors are not required on Interbus networks, as each section of cable is
automatically terminated on every Interbus device. The Ground Tab of the SI-Interbus
must be connected to a suitable grounding point as close to the drive as possible using
the minimal cable length.
5.4
Maximum network length
The maximum cable length is 400 metres between Remote Bus devices. Hence, the
maximum total length of the Interbus network depends entirely on the number of
devices connected to the network.