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Building Technologies Division Basic Documentation LME7... CC1P7105en
Infrastructure & Cities Sector 7 Operation, indication, diagnostics 29.11.2011
7.3 Diagnostics of cause of fault
After lockout, the red fault signal lamp remains steady on. In that condition, visual
diagnostics of cause of fault according to the error code table can be activated by
pressing the lockout reset button (info button) for more than 3 seconds. Pressing the
lockout reset button (info button) again for at least 3 seconds, interface diagnostics will
be activated. If, by accident, interface diagnostics has been activated, in which case the
slightly red light of the signal lamp flickers, it can be deactivated by pressing again the
lockout reset button (info button) for >3 seconds. The instant of switching over is
indicated by a yellow light pulse.
The following sequence activates the diagnostics of cause of fault:
> 3 s
Lockout position
xxxxxxxx
xxxxxxxx
xxxxxxxx
xxxxxxxx
xxxxxxxx
xxxxxxxx
> 3 s < 3 s
7109z04/1008
Reset
On
Lockout position
nfo nfo nfo
> 3 s
nfo
Flashing
Error code table
Interface diagnostics
PC / analyzer
Visual diagnostics
Lockout position
Figure 7: Diagnostics of cause of fault
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