Noise Detector; Over-Voltage Detector - Pepperl+Fuchs AS-i CC-Link Gateway Manual

AS-i CC-Link Gateway
Advanced Diagnostics for AS-i Masters
11.5.2

Noise Detector

The noise detector detects AC voltages on AS-i, that are not initiated by an AS-i
master or AS-i slaves. These interference voltages can cause telegram distur-
bances.
A frequent cause are insufficiently shielded frequency inverters or improperly
routed cables.
Noises is indicated on the master´s display as well as in AS-i Control Tools.
11.5.3

Over-voltage Detector

Over-voltages are present if the conductors of an AS-i network that normally are
routed electrically symmetrical with respect to machine ground, are strongly elec-
trically raised. A cause can for example be startup procedures of large consum-
ers.
However, over-voltages do generally not interfere with the AS-i communication,
but can under certain circumstances cause incorrect sensor signals.
Over-voltages are indicated on the master´s display as well as in the AS-i Control
Tools.
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