Siemens SIMOTICS S-1FL6 - Page 401

Diagnostics
11.2 List of faults and alarms
SINAMICS V90, SIMOTICS S-1FL6
Operating Instructions, 04/2019, A5E36037884-007
399
Fault
Cause
Remedy
F30027: Precharging DC link
time monitoring
Reaction: OFF2
Acknowledgement:
IMMEDIATELY
• The power unit DC link was not able to
be pre-charged within the expected
time.
There is no line supply voltage con-
nected.
• The line contactor/line side switch has
not been closed.
• The line supply voltage is too low.
• The pre-charging resistors are over-
heated as there were too many pre-
charging operations per time unit
• The pre-charging resistors are over-
heated as the DC link capacitance is
too high.
• The pre-charging resistors are over-
heated.
• The pre-charging resistors are over-
heated as the line contactor was closed
during the DC link fast discharge
through the Braking Module.
• The DC link has either a ground fault or
a short-circuit.
• The pre-charging circuit is possibly
defective.
Check the line supply voltage at the input
terminals.
F30036: Internal overtemper-
ature
Reaction: OFF2
Acknowledgement:
IMMEDIATELY
The temperature inside the drive converter
has exceeded the permissible temperature
limit.
• Insufficient cooling, fan failure.
• Overload.
• Surrounding temperature too high.
• Check whether the fan is running.
• Check the fan elements.
• Check whether the surrounding tempera-
ture is in the permissible range.
Notice:
This fault can only be acknowledged once the
permissible temperature limit minus 5 K has
been fallen below.
F30050: 24 V supply over-
voltage
Reaction: OFF2
Acknowledgement: POWER
ON
The voltage monitor signals an overvoltage
fault on the module.
• Check the 24 V power supply.
• Replace the module if necessary.
F30071: No new actual val-
ues received from the power
unit
Reaction: OFF2
Acknowledgement:
IMMEDIATELY
The number of actual value telegrams from
the power unit that have failed has ex-
ceeded the permissible number.
Replace the module if necessary.