Siemens SINUMERIK 808D ADVANCED Diagnostic Manual page 447

Fault
F30011: Line phase failure in
main circuit
Reaction: OFF2
Acknowledgement:
IMMEDIATELY
F30015: Phase failure motor
cable
Reaction: OFF2
Acknowledgement:
IMMEDIATELY
F30021: Ground fault
Reaction: OFF2
Acknowledgement:
IMMEDIATELY
F30027: Precharging DC link
time monitoring
Reaction: OFF2
Acknowledgement:
IMMEDIATELY
Diagnostics Manual
Diagnostics Manual, 08/2013, 6FC5398-6DP10-0BA1
Cause
At the power unit, the DC link voltage ripple
has exceeded the permissible limit value.
Possible causes:
•
A line phase has failed.
•
The 3 line phases are inadmissibly
unsymmetrical.
•
The fuse of a phase of a main circuit
has ruptured.
•
A motor phase has failed.
A phase failure in the motor feeder cable
was detected.
The signal can also be output in the
following case:
The motor is correctly connected, however
the closed-speed control is instable and
therefore an oscillating torque is
generated.
Power unit has detected a ground fault.
•
Ground fault in the power cables.
•
Winding fault or ground fault at the
motor.
•
The power unit DC link was not able to
be pre-charged within the expected
time.
There is no line supply voltage
connected.
•
The line contactor/line side switch has
not been closed.
• The line supply voltage is too low.
•
The pre-charging resistors are
overheated as there were too many
pre-charging operations per time unit
• The pre-charging resistors are
overheated as the DC link capacitance
is too high.
•
The pre-charging resistors are
overheated.
•
The pre-charging resistors are
overheated 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.
SINAMICS V70 alarms
5.2 Common faults and alarms
Remedy
•
Check the main circuit fuses.
•
Check whether a single-phase load is
distorting the line voltages.
• Check the motor feeder cables.
• Check the motor feeder cables.
•
Check the speed controller settings.
•
Check the power cable connections.
•
Check the motor.
Check the line supply voltage at the input
terminals.
447