Siemens LMO44 Series User Manual

9/13
Building Technologies Division CC1N7130en
Infrastructure & Cities Sector 22.08.2013
Operation, display, diagnostics
EK
7130z05/0700
Lockout reset button «EK» is the key operating element for resetting
the burner control and for activating / deactivating the diagnostic
functions.
LED
7130z06e/0700
Red
Yellow
Green
The multicolor signal lamp (LED) in the lockout reset button is the key
indicating element for both visual diagnostics and interface diagnostics.
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 OCI400 and PC software
ACS400 / ACS410 or flue gas analyzers of different makes.
Visual diagnostics:
In normal operation, the different operating states are indicated in the form of color
codes according to the color code table given below.
During startup, status indication takes place according to the following table:
Color code table for multicolor signal lamp (LED)
Status
Color code
Color
Waiting time «tw», other waiting states
........................................
Off
Oil preheater on
z
........................................
Yellow
Ignition phase, ignition controlled
z  z  z  z  z  z
Flashing yellow
Operation, flame o.k.

........................................
Green
Operation, flame not o.k.
         
Flashing green
Extraneous light on burner startup
 S  S  S  S  S
Green-red
Undervoltage
z S z S z S z S z
Yellow-red
Fault, alarm
S
.......................................
Red
Error code output (refer to «Error code
table»)
S S S S
S
Flashing red
Interface diagnostics
S
S
S
S
S
S
S
S
Red flicker light
......
Steady on
S
Red

Off
z
Yellow

Green
Operation
Operational status
indication
Legend

Siemens LMO44 Series Specifications

General

Brand	Siemens
Model	LMO44 Series
Category	Control Unit
Language	English