CDD3000-HF Operation Manual
3-21
3 Installation
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3.6.3 Isolation
The analog and digital inputs are isolated from each other in order to
avoid transient currents and interference over the connected lines. The
analog inputs are connected to the potential of the servo drive processor.
The digital inputs and outputs are isolated, thereby keeping interference
away from the processor and the analog signal processing.
Figure 3.10 Voltage supply to I/Os
When selecting the cable, note that the cables for the analog inputs and
outputs must always be shielded. The cable or wire core shield on
shielded pairs should cover as large an area as possible in respect of
EMC considerations, thereby providing safe discharge of high-frequency
interference voltages (skin effect).
For special cases refer to the CDD3000 Application Manual.
analog
digital
M
3~
I/O
I/O
SNT
R
B
+ 24 V
=
10 V
+5 V / +15 V
