Revision History; Changes Of Lmv51 From Series A To B; Changes In The Lmv5 Release Upgrade; Changes To Basic Unit Lmv5 - Siemens LMV50 Series Manual

Β
Building Technologies

22 Revision history

22.1

Changes of LMV51 from series A to B

The new release of the LMV5 is identified by the series letter B in the type
(LMV51.XXXBXXX).
Notes on compatibility!
∂
When changing from A-series to B-series units, the parameter sets can be copied
∂
The added parameters are preset in a way that they correspond to the former
functioning mode
∂
An update to a new unit, which is no longer in the state supplied, should not be
made since it is only the parameters of the A-series that can be stored back
∂
The compatibility of the load controller must be set manually, with the sign
reversed
∂
Due to the change to the external analog predefined load and the analog load
output (load controller V01.50), it may be necessary to make adaptions on the
associated external controllers or BACS

22.2 Changes in the LMV5 release upgrade

22.2.1 Changes to basic unit LMV5

22.2.1.1 Basic unit LMV51; Software from V02.10 in V02.20

The software of the basic card has been changed from V02.10 to V02.20.
The following changes have been made:
Program stop
When the unit reaches the Program stop position, the AZL5 displays Programstop
active.
Deactivating the alarm
The alarm relay can be deactivated via the menu of the AZL5, which means that the
actual lockout or start prevention is maintained.
Deactivation remains active until the next reset is made, system reset or startup occurs.
Then, normal alarms are resumed, that is, deactivation of the alarm applies to the
current alarm.
Pressure switch-min in the oil program
Pressure switch-min can also be activated for the oil program only.
Shutoff-valve oil, switch-off time
In the case of oil-firing, the external shutoff valve closes on completion of the
permissible afterburn time (end of phase 70).
The burner motor operates until phase 79 is reached.
Using the relevant parameter, it is now possible to choose between the present function
(when using the magnetic clutch) and direct coupling of the oil pump.
In that case, shutoff valve oil must be connected to the output for the oil pump (X6-02).
This output is not safety-related and is not used in the case of direct oil pump coupling.
Shutoff valve oil (X6-02) is always controlled when the fan runs, plus another 15
seconds.
DWminOil in program Heavy oil with gas pilot
The valuation of input oil pressure switch-min in program Heavy oil with gas pilot has
been moved from phase 38 to phase 44.
DWminOil is only valued during the safety time after a delay time has elapsed
Basic Documentation LMV5...
22 Revision history
303/327
CC1P7550en
22.05.2018