Diagnostics Of The Cause Of Fault - Siemens LME SERIES Installation Manuals

Operation, indication, diagnostics (cont´d)
Diagnostics of the cau-
se of fault
Building Technologies
HVAC Products
After lockout, the red fault signal lamp LED will remain steady on. In that condition,
visual diagnostics of the cause of fault according to the error code table can be acti-
vated by pressing the lockout reset button for more than 3 seconds. Pressing the reset
button again for at least 3 seconds, interface diagnostics will be activated. Interface
diagnostics works only if the AGK20... lockout reset button extension is not fitted. 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 for at least 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
On
EK
> 3 s
Red blink code of
signal lamp (LED)
2 blinks
3 x blinks
4 blinks
5 blinks
6 blinks
7 blinks
8 x blinks
9 blinks
10 blinks
14 blinks
During the time the cause of fault is diagnosed, the control outputs are deactivated
Burner remains shut down
-
External fault indication remains deactivated
-
Fault status signal «AL» at terminal 10, according to the error code table
-
The diagnostics of the cause of fault is quit and the burner switched on again by reset-
ting the burner control. Press the lockout reset button for about 1 second (< 3 seconds).
Lockout position
Visual diagnostics
Flashing
EK
Error code table
> 3 s
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
Error code table
«AL» at Possible cause
term. 10
On No establishment of flame at the end of «TSA»
Faulty or soiled fuel valves
-
Faulty or soiled flame detector
-
Poor adjustment of burner, no fuel
-
Faulty ignition equipment
-
On «LP» faulty
- Loss of air pressure signal after «t10»
- «LP» is welded in normal position
On Extraneous light when burner startup
On Time out «LP»
- «LP» is welded in working position
On Free
On Too many losses of flame during operation
(limitation of repetitions)
Faulty or soiled fuel valves
-
Faulty or soiled flame detector
-
Poor adjustment of burner
-
On Free
On Free
Off Wiring error or internal error, output contacts,
other faults
On CPI contact not closed
Lockout position
Interface diagnostics
PC / analyzer
Reset
EK
< 3 s
CC1N7101en
27.11.2008
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