Inovance AM600-4AD - Installing the RFI Filter for the Power Module; Insulation Transformer

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Introduction
5.1.3 Installing the RFI Filter for the Power Module
When the AM600 series modules are used in environment with strong interference sources (for example
,
AC drive)
,
you are advised to use an RFI 󶍾lter to suppress noise.
RFI 󶍾lter must be installed as close as the AM600 power module as possible and mounted to the
conductive backplate with screws to ensure properly grounding. In principle
,
the input cables of RFI 󶍾lter
must be separated from the output cables of RFI 󶍾lter to prevent the noise of the cables at the front-end
of the 󶍾lter from being directly coupled to the cables at the back-end of the 󶍾lter.
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Figure 5-5 Power 󶍾lter installation
5.1.4 Insulation Transformer
The insulation transformer is a component that suppresses conducted noise (especially surge noise that
may cause PLC malfunction). As a surge noise suppression device that reduces the impact of lightning
,
the insulated transformer is connected as shown in the following 󶍾gure.
PLC
Insulation
transformer
PLC
power
Distribution
terminal
block
Main
power
100 VAC to 240 VAC
I /O device
Motive device
Inside the control panel
I/O power
Motive power
T1
Figure 5-6 Working principle of the insulation transformer