Operating instructions

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OTHER FEATURES
If load monitoring is required with the VSC connection then external converters are needed on the
secondary side.
The wiring required by the type series Thyro-P…VSC is different with regards to both the power
and control connections when compared with standard power controllers from the type series
Thyro-P.
OPERATING WITH LBA-2
To operate the VSC power controllers you need software for the LBA-2 version V1.2. or higher.
If you only have older versions then you can get a free update for the LBA-2 from our support team.
OPERATING WITH THE THYRO-TOOL FAMILY
The Thyro-Tool Family from version 4.06 can be used to operate the VSC power controllers.
If you have already purchased an older version of the Thyro-Tool Family software you can upgrade
the software with a free update from our home page.
OPERATING MODES
The power controllers in the series Thyro-P 1P...VSC only have one operating mode: VSC_VAR
REGULATION MODES
All regulation modes of the Thyro-P are available as regulation modes: U, U², I, I², P.
In primary VSC regulation mode U and U² are less suited.
LOAD MONITORING
For the application of load monitoring external converters are needed for L1 on the secondary side
(also see the Thyro-P VSC connecting diagrams in chapter 8 as well as chapters 4.10 and 4.11 of
operating instructions). The parameters for this can be configured with the Thyro-Tool Family or
LBA-2.
Parameterization:
• Operating mode
• Number of VSC stages
• External converters
• Overlapping*
* Using overlapping parameters
The overlapping process is for linearization of the control characteristic line and can be used on
request. In this case the next higher step will already be activated before full conducting the small
step. The change is only marginal regarding cos phi.
Within a half wave cycle up to 3 thyristor stages can be activated, however, in reality only one is
ever switched on. As such, the advantages of a very good level of efficiency in terms of the thyristor
controllers is retained in full.