Electrical Connection Of More Than One Module With Lcd Display - janitza SVG Series User Manual

SVG 50/100
5.3

Electrical connection of more than one module with LCD display

When electrically connecting more than one LCD module, the interfaces for the rack and
wall modules are the same, so only the connection of the rack module is described here.
The operating status monitoring and the error diagnosis of the local device are carried out
via the 4.3-inch screen of the LCD module.
Note: If the external 7-inch monitor of the LCD screen is not used, the numbering of the
individual modules is omitted.
When using several modules, the connection is carried out the same as for a single
module.
In this case, only the "open loop" connection version is permissible.
If no current transformers can be installed on the load side, then the "closed loop"
connection version can only be used in combination with summation current transformers.
Take note here of the type of connection for the interface:
• CT connection in series
• Connections 485+, 485-, EPO_A and GND_ISO of all the modules are not connected to
each other
The figure shows the connection of several filter modules:
Figure 3-11, Electrical connection of more than one LCD module (1~n)
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SVG 1
SVG 2
SVG n