Siemens LMV5 Series Technical Instructions page 311

LMV Series
LMV51 Software Update: Version 0210 to 0220 (continued)
8. After a safety shutdown, the longer prepurge time PrepurgeSafeGas/Oil becomes active.
The following update was made with LMV51 software version 0230:
1. After ignition, the actuators will drive to curve point 1 independent of whether or not the
minimum load has been set to a higher value than the load of point 1. Once the actuators have
reached point 1, they will then drive to the set minimum load.
The following updates were made with LMV51 software version 0250:
The product numbers of the LMV5 changed as follows:
LMV51.0x0Bx → LMV51.0x0Cx
LMV51.1x0Bx → LMV51.1x0Cx
LMV51.200Ax → no modification
To operate an LMV5 with the software versions listed above, it is necessary to have AZL5
software version 0410 or higher installed. Using this software, all AZL5s can now be updated.
The passwords are now encoded. The following other changes were made to the LMV5 basic
units:
1. Introduction of a preset load for testing the safety limit thermostat (SLT-Testload Mod, SLT
Testload Stg).
2. Introduction of a burner startup without prepurging (Skip Prepurge Gas, Skip Prepurge Oil).
3. Prepurge times 1 (t30) and 3 (t34) can be set at the OEM level.
4. Introduction of a repetition counter at the OEM level for loss of flame during operation
(LossOfFlame).
5. Alarm in the event of start prevention in standby mode (ShutdwnStbyOnErr). In the case of
a start prevention with no call for heat, it has previously not been possible to set off an alarm.
Now an alarm can also be triggered in standby mode.
6. The inputs for oil are no longer checked when firing on gas. Likewise, the inputs for gas are
no longer checked when firing on oil.
SCC Inc.
LMV51 Software Update: Version 0220 to 0230
LMV51 Software Update: Version 0230 to 0250
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Technical Instructions
Document No. LV5-1000
Section 10