Communication Cable - SIEB & MEYER SD2 Hardware Description

General Information Regarding the Wiring
17
Fig. 67: Motor connection
Requirements to the motor cable
The maximum admissible length of the motor cable is 100 m. The capacity must not
exceed 5.2 nF.
Example: If the cable capacity is 0.26 nF per meter, the maximum admissible length of
the motor cable is 20 m.
17.2.2

Communication Cable

Please connect the communication interfaces only with high-quality cables according
to the relevant standards.
USB
The USB cable must have a maximum length of 5 m according to the USB regulations.
We recommend high-quality cables with integrated ferrite cores (available at
SIEB & MEYER).
RJ45
Use only high-quality RJ45 cables.
Low priced RJ45 cables can damage the female RJ45 connector. The dimensions of
the cable connectors deviate frequently from the standard dimensions. Thus, they
cause problems with the electrical contact after only few connecting cycles.
150
NOTICE
Ungrounded test setups
So-called "flying test systems" that are not or not sufficiently grounded can cause
damage to the communication interfaces or to the connected devices.
Trouble-free USB communication is also highly dependent on the quality of
the USB interface at the used PC/laptop.
Drive System SD2 - Hardware Description
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