Siemens LMO14 Series Installation Instructions

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Building Technologies CC1N7130en
15.03.2018
Operation, display, diagnostics (cont´d)
After a non-alterable lockout, the red signal lamp (LED) lights up.
In that condition, the 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, the 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 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:
EK
> 3 s
Flashing
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xxxxxxxx
xxxxxxxx
xxxxxxxx
xxxxxxxx
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Error code table
EK
> 3 s
Interface diagnostics
PC / analyzer
OCI400
EK
< 3 s
7130z04e/0602
Reset
On
Visual diagnostics
Lockout position
Lockout position Lockout position
Error code table of multicolor signal lamp (LED)
Red blink code
of signal lamp
Alarm at
term. 10
Possible cause
2 blinks On No establishment of flame at the end of safety time (TSA)
- Faulty or soiled fuel valves
- Faulty or soiled flame detector
- Poor adjustment of burner, no fuel
- Faulty ignition equipment
3 blinks On Free
4 blinks On Extraneous light on burner startup
5 blinks On Free
6 blinks On Free
7 blinks On Too many losses of flame during operation (limitation of the number of repetitions)
- Faulty or soiled fuel valves
- Faulty or soiled flame detector
- Poor adjustment of burner
8 blinks On Time supervision oil preheater
9 blinks On Free
10 blinks Off Wiring fault or internal fault, fault output contacts, faults that cannot be detected,
such as simultaneous faults, other faults
Diagnostics of the
cause of fault
During the time the cause of fault is diagnosed, the control outputs are dead
- The burner remains shut down
- the external fault indicator remains de-energized
- Fault status signal (alarm) 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
resetting the burner control. Press the lockout reset button for about 1 second (<3
seconds).

Siemens LMO14 Series Specifications

General

Brand	Siemens
Model	LMO14 Series
Category	Control Unit
Language	English