Chapter 15 – Installation
Figure 107: RPV311 Grounding
5.5.1 RA33X EARTHING
To ensure proper operation of the equipment under adverse conditions of electromagnetic compatibility,
connect the equipment protective earth terminal to the panel using a copper strap of at least 10 mm wide
with M6 ring lug. As shown in the Figure 108.
Figure 108: RA33X Grounding
5.6 CONNECTION BETWEEN RPV311 AND RA331, RA332 OR RA333
The RPV311 can process a maximum number of 64 analogue channels that can be achieved using 8
acquisition modules.
The RPV311 processing unit allows connection with up to 8 RA331 acquisition modules, up to 4 RA332
acquisition modules or up to 4 RA333 acquisition modules respecting the maximum quantity of 64 analog
channels. That is: when it is using only RA332, it is possible to install a maximum of 4 modules with 16
analog inputs each, and when it is using only RA331, it is possible to install up to 8 modules with 8 analog
inputs each. When it is using only RA333, it is possible to install a maximum of 4 modules with 8 analog and
3 TW inputs each one (each TW board counts as 8 analogue channels). The RA331, RA332, and RA333
can be connected to the same RPV311 processing module.
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