Siemens LMV36.520A1 - Flame Detectors

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Building Technologies Division Basic documentation LMV36... CC1P7544en
Infrastructure & Citiies Sector 7 Basic unit 25.09.2013
7.2 Flame detectors
 For display of the flame on the AZL2..., the following general conditions apply:
- Display is subject to various component tolerances, which means that
deviations of 10% can occur
- Note that, for physical reasons, there is no linear relationship between flame
display and detector signal values
The LMV36... system can be used with different types of flame detectors. For the correct
use of flame detectors, refer to chapter Sequence diagrams.
The flame detector used must be correctly parameterized.
Caution!
Continuous operation is possible only when using an ionization probe!
In the hardware of the LMV36..., the flame signals are subdivided into 2 groups (group 0
covering types the QRB... and group 1 covering ionization and the QRA…). The flame
detector for gas is selected via parameter 221 (fuel 0) / 321 (fuel 1), that for oil via
parameter 261 (fuel 0) / 361 (fuel 1).
No. Parameter
221
Gas: Active detector flame evaluation
0 = QRB
1 = ION / QRA
321
Fuel 1 gas: Active detector of flame evaluation
0 = QRB
1 = ION / QRA…
261
Oil: Active detector of flame evaluation
0 = QRB
1 = ION / QRA
361
Fuel 1 oil: Active detector of flame evaluation
0 = QRB
1 = ION / QRA…