Diagnostics Of The Cause Of Fault - Siemens LME11 series Manual

Operation, indication, diagnostics (cont´d)
Diagnostics of the cau-
se of fault
Building Technologies
HVAC Products
After lockout, the red fault signal lamp will remain steady on. In that condition, visual
diagnostics of the cause of fault according to the error code table can be activated 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 (for more detailed
information, refer to Data Sheet N7614).
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
hh
3 x blinks
hhh
4 blinks
hhhh
5 blinks
hhhhh
6 blinks
hhhhhh
7 blinks
hhhhhhh
8 x blinks
hhhhhhhh
9 blinks
hhhhhhhhh
10 blinks
hhhhhhhhhh
14 blinks
hhhhhhhhhh
hhhh
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
29.06.2006
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