Communication / CBC 03.2010
6SE7087-6QX70 (Version AL) Siemens AG
8.4-10 Compendium Motion Control SIMOVERT MASTERDRIVES
♦ When stripping the insulation off the shield, make sure that the
shield is not damaged!
♦ When stripping the insulation off the core ends, make sure that the
copper core is not damaged!
Data transfer rate Max. cable length (in m)
10 kBit/s 1000
20 kbit/s 1000
50 kBit/s 1000
100 kBit/s 750
125 kBit/s 530
250 kBit/s 270
500 kBit/s 100
800 kBit/s 20
1 Mbit/s 9
Table 8.4-2 Cable length in relation to the baud rate
8.4.3.2 EMC measures
For fault-free CAN bus operation, the following measures are
necessary:
The bus cables must be twisted and shielded and are to be routed
separately from power cables, the minimum clearance being 20 cm.
The shield must be connected through the largest possible surface area
on both sides, i.e. the shield of the bus cable between 2 converters
must be connected to the converter housing or the connector housing
at both ends. The same applies to the shield of the bus cable between
the CAN bus master and the converter.
If bus and power cables intersect, they must do so at an angle of 90 °.
Shielding
NOTICE
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