Diagnostics Of Cause Of Fault - Siemens LME7 Series Manual

Building Technologies

7.3 Diagnostics of cause of fault

After a non-alterable lockout, the red fault signal lamp (LED) lights up.
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:
Lockout position
nfo
On
> 3 s
Figure 7: Diagnostics of cause of fault
Basic Documentation LME7...
7 Operation, indication, diagnostics
Lockout position
nfo
Visual diagnostics
Flashing
> 3 s
Error code table
xxxxxxxx
xxxxxxxx
xxxxxxxx
xxxxxxxx
xxxxxxxx
xxxxxxxx
nfo
Reset
Lockout position
< 3 s
Interface diagnostics
PC / analyzer
nfo
> 3 s
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17.04.2018