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1
Safety notes
1.1
Warnings
To avoid injury to persons, damage to proper-
ty or the environment, the following warning
notes must be observed!
WARNING
The LMV5... is a safety device! Do not open, in-
terfere with or modify the unit. Siemens will
not assume responsibility for any damage re-
sulting from unauthorized interference!
The addendum to the LMV51.2... and LMV52...
documentation contains additional warning
notes which should also be observed when
using these system versions. After commis-
sioning and after each service visit, check the
flue gas values across the entire load range.
Risk of explosion!
Incorrect configuration can lead to excessive
fuel supply which might cause an
explosion! Operators must be aware that in-
correct settings made on the AZL5... display
and operating unit and incorrect settings of
the fuel and / or air actuator positions can lead
to dangerous burner operating conditions.
The present Basic Documentation describes a wide choice of ap-
plications and functions and shall serve as a guideline. The cor-
rect functioning is to be checked and proven with the help of
function tests on a test rig or on the plant itself!
•
All activities (mounting, installation and service work, etc.)
must be performed by qualified staff
•
Degree of protection IP40 as per DIN EN 60 529 for burner
controls must be ensured through adequate mounting by
the burner or boiler manufacturer
1.2
Mounting notes
•
Ensure that the relevant national safety regulations are
complied with
•
In the geographical areas where DIN regulations apply, the
requirements of VDE must be satisfied, especially the
standards DIN / VDE 0100, 0550 and DIN / VDE 0722
5921
Safety notes
•
Before making any wiring changes in the connection area of
the LMV5..., completely isolate the plant from mains supply
(all-polar disconnection). Ensure that the plant cannot be
inadvertently switched on again and that it is indeed dead. If
not observed, there is a risk of electric shock hazard
•
Protection against electrical shock hazard on the LMV5...
and on all connected electrical components must be
ensured through appropriate mounting
•
Each time work has been carried out (mounting, installation
and service work, etc.), check to ensure that wiring is in an
orderly state, that the parameters have been correctly set
and make the safety checks as described in "Commission-
ing notes"
•
Fall or shock can adversely affect the safety functions. Such
units must not be put into operation even if they do not
exhibit any damage
•
In programming mode, the position check of actuators and
VSD (checking electronic fuel / air ratio control) is different
from the check during automatic operation.
Like in automatic operation, the actuators are still jointly
driven to their required positions. If an actuator does not
reach the required position, corrections are made until that
position is reached. However, in contrast to automatic oper-
ation, there are no time limits to these corrective actions.
The other actuators maintain their positions until all actua-
tors have reached the positions currently required. This is
essential for setting fuel /air ratio control. This means that
during the time the fuel / air ratio curves are programmed,
the person making the plant settings must continuously
monitor the quality of the combustion process (e.g. by
means of a flue gas analyzer). Also, if combustion levels are
poor, or in the event of dangerous situations, the commis-
sioning engineer must take appropriate action (e.g. switch-
ing off manually)
To ensure the safety and reliability of the LMV5... system, the fol-
lowing points must also be observed:
– Condensation and ingress of humidity must be avoided.
Should such conditions occur, make sure that the unit will be
completely dry before switching on again!
– Static charges must be avoided since they can damage the
unit's electronic components when touched. Recommenda-
tion: Use ESD equipment
2
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