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Fault information and trouble shooting
7.2
Warning information
Once warning information is detected, the frequency converter would immediately
enter the warning indicating state and giving out warning codes on LED display.
During warning the drive keeps running and returns to previous normal status once
the warning is gone. Specific warning information is shown in Table below
Warning
Code
Warning
Uu
voltage
The pre-warning about
OLP2
overload of drive
Heat-sink temperature
OH2
is high
Function codes setup is
SF3
not appropriate
SINAMICS V50 converter
74
Operating Instructions, 04/2022, FW V1.0, A5E44777205B AB
Type
of
under-
The bus voltage is below the voltage point
Operating current exceeded the converter
overload pre-detection level and maintained
more than pre-overload detection time
Temperature in the radiator higher than the
OH2 standard
Output terminal DO, Y1, Y2 does not
simultaneously select No.10 function
Description
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