Siemens LMO14 Series Manual page 9

Operation, display, diagnosis
Operation
Operational status
indication
Legend
Siemens Building Technologies
HVAC Products
Lockout reset button «EK...» is the key operating element for resetting
EK
the burner control and for activating / deactivating the diagnostic func-
tions.
Red
The multicolor LED in the lockout reset button is the key indicating
Yellow
element for both visual diagnostics and interface diagnostics.
Green
LED
Both «EK...» and LED are located under the transparent cover of the lockout reset
button.
There are 2 diagnostic choices:
1. Visual diagnostics: Operational status indication or diagnostics of the cause of
fault.
2. Interface diagnostics: With the help of the interface adapter OCI400 and PC soft-
ware ACS400 or flue gas analyzers of different makes (refer to Data Sheet 7614).
Visual diagnostics:
In normal operation, the different operational statuses are indicated in the form of color
codes according to the color code table. The interface diagnostics is activated by
pressing the lockout reset button for at least 3 seconds (refer to Data Sheet 7614). If,
by accident, the 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 moment of switching over is indicated by a
yellow light pulse.
Operating position
Visual diagnostics
Color code table
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During startup, status indication takes place according to the following table:
Color code table for multicolor signal lamp LED
Status
Waiting time «tw», other waiting states
Oil preheater on, waiting time «tw»
Ignition phase, ignition controlled
Operation, flame o.k.
Operation, flame not o.k.
Extraneous light on burner startup
Undervoltage
Fault, alarm
Error code output (refer to «Error code
table»)
Interface diagnostics
...... Steady on
Off
Operating position
Interface diagnostics
PC / analyzer
> 3 s
EK
Color code
......................................
.......................................
.......................................
s s
s s
s.......................................
s s
s s s s s s s s
s Red
Yellow
Green
Color
Off
Yellow
Flashing yellow
Green
Flashing green
s s
Green-red
s s s
Yellow-red
Red
s s Flashing red
Red flicker light
CC1N7130en
15.10.2002
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