Version no. Description
1.0.9.0 For screw compressors the Oil Separator temp value is now shown in the
Shutdown log History/Shutdowns/Measured Values.
When displaying a pressure value in kPa a decimal point was shown and the
value displayed was x0.1 to low. This has now been corrected.
When running TSMC/TCMO with frequency drive the intermediate pressure liq-
uid injection cooling control did not work correctly. This has now been correc-
ted.
When running TSMC/TCMO the Process out temperature limiter did not work
correctly. Capacity step reduction at process out temperature under low alarm
limit or temperature over high alarm limit was not activated. This has now
been corrected.
When using the chiller function for HP/LP level control, the regulator output
signal did not work correctly when a limiter was activated, no matter if the
limiter was active or passive. This has now been corrected.
The Multisab system could fail when one VSD controlled compressor was regu-
lating in sequence with one normal slide regulated screw compressor. In a
down or up regulation situation the system could “freeze” and would not react
to changes in the measured signal. This error has now been corrected. The
problem only relates to version 1.0.8.3 and does not exist in earlier versions.
1.0.9.3 In some situations Unisab III could make a restart. The cause of this (repeti-
tive) restart was that a program part would write to and corrupt a file.
In some situations Unisab III could reset configuration files to default values.
The cause of this factory reset of configuration files was that a program part
would set a reset flag when updating the automatic display contrast settings
introduced in version 1.0.9.0. Both problems have now been solved.
For CMO Rota with new Centa (soft) coupling, the unload configuration which
is set to VSD Normal or VSD Total would change to Additional step after a
power off. This problem has now been solved.
Troubleshooting
304/319
Engineering manual - Unisab III 1.10
001930 en 2014.09
To Next Page
Loading...
