Ground fault monitoring
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Building Technologies 007828_b_en_--
Fire Safety & Security Products 09.2008
14 Ground fault monitoring
14.1 Modules with ground fault monitoring
For more detailed information on the modules with ground fault monitoring, their
application, function and programming -> see document 007831, chapter 'Ground
fault monitoring'.
14.1.1 Settings of the modules in the factory
The ground fault monitoring is inactive on all modules, i.e. the 'C-Bus potential' is
not set to 'System ground' -> 'C-Bus' is not monitored for ground fault.
NOTE
The 'C-Bus potential' may be applied to 'System ground' on one station only.
Within an electrically connected C-Bus network, the ground fault monitoring
'Control unit' may be active on one module only. (Settings always on the station
with C-Bus address 1)
14.2 Test ground fault monitoring
Control terminal B3Q700 ('FC'/'FT') or control module E3G070
Connect supply positive or negative to ground for approx. 10 seconds, in order that
the corresponding fault message is indicated.
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