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Building Technologies Basic Documentation LMV27... CC1P7541en
29 Revision history LMV27 17.12.2018
Software version V03.00
Optimization: Maximum time of safety phase reduced from 28 to 27 seconds
Software version V03.10
Optimization: If power supply fails during the restore process, the data set can be
repaired by starting a new restore process (since the backup / restore option is not
yet available with V03.00 because there is no suitable AZL2, this effect cannot
occur)
Optimization: When making a reset via the AZL2, an incomplete reset occurred in
very rare cases (display showed RESEt, but reset was not triggered)
Optimization: The time ascertained by the loss-of-flame test was 0.2 seconds too
long
Optimization: Reduced detection of undervoltage when fan motor is started in phase
22 (when a single-phase motor and the LMV27 were powered via the same phase,
undervoltage detection could occur on startup; in that case, the LMV27 was not
operated as specified)
Optimization: Better overview through text changes of groups 200 = PAr0, 300 =
PAr1 and 600 = ACtr on the parameter menu (initially PArA), and hiding of unused
parameters after selection of fuel train / operating mode
Optimization: To shorten the startup time, there is no referencing when postpurging
is aborted via load controller-ON (direct start)
Automatic return travel of the SQN1 at the lower internal stop
Software version V03.30
Extension: Display of intensity of flame when setting the curves
Optimization: Display and diagnostics of changing start preventions
Optimization: No unplausible relay setpoint (error C:99 D:3) when starting
standardization, alarm in case of start prevention and load controller-ON signal
Optimization: Referencing in connection with direction of rotation Right and home
position 90°
Software version V03.40
Extension: Supports SQM33.6 or SQM33.7
Extension: Postpurging in the lockout position
Extension: No flame at the end of safety time TSA repetition counter, adjustable air
pressure failure (OEM), heavy oil direct start (SO)
Extension: Air pressure supervision in operation with pneumatic ratio control can be
switched off (OEM)
Extension: Modbus data points
127 = Fuel 0 operating mode (parameter 201)
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