Diagnostics Of The Cause Of Fault - Siemens LME7 Series Basic Documentation

Building Technologies
HVAC Products

7.3 Diagnostics of the cause of fault

After lockout, the red fault signal lamp (LED) will remain steady on. In that condition, vi-
sual diagnostics of the 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 (LED) flickers, it can be deactivated by pressing
again the lockout reset button (info button) during >3 seconds. The instant of switching
over is indicated by a yellow light pulse.
The following sequence activates the diagnostics of the cause of fault:
Lockout position
nfo
On
> 3 s
Figure 6: Diagnostics of the cause of fault
Basic Documentation LME7...
7 Operation, indication, diagnostics
Lockout position
nfo
Visual diagnostics
Fl as hing
> 3 s
Error code table
xxx xxxxx
xxx xxxxx
xxx xxxxx
xxx xxxxx
xxx xxxxx
xxx xxxxx
nfo
Reset
Lockout position
< 3 s
Interface diagnostics
PC / analyzer
nfo
> 3 s
30/164
CC1P7105en
13.10.2009