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Building Technologies Basic Documentation LMV5... CC1P7550en
22 Revision history 22.05.2018
22.2.3 Changes to the variable speed drive module (VSD
module)
22.2.3.1 VSD module, Software from V01.30 to V01.40
1. Opening of the release contact during shutdown can be parameterized. This enables
the VSD module to use a DC break.
2. Quick shutdown of the burner when speed deviation exceeds a certain level.
22.2.3.2 VSD module, Software from V01.40 to V01.50
1. Diagnostic data.
To avoid error EC A9, DC 18 (Page disrupted), statistics data are now only stored in
standby and operation.
2. Offset at setpoint output.
In some cases, the correction offset for the speed setpoint was not reset after a
safety shutdown.
This could lead to error messages. The new version eliminates this effect.
3. Internal tests.
Internal system tests have been modified, allowing the VSD test initialized by the
LMV5 to be dropped.
4. Quick shutdown.
Now, quick shutdown of the VSD is also effected in programming mode.
22.2.3.3 VSD module, software for 2012/2013 release upgrade
For the 2012/2013 release upgrade for the LMV5, the internal VSD module's software
was not changed, meaning that the V01.50 version is still current.
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