Siemens SINUMERIK 808D ADVANCED Series Commissioning Manual page 470

Fault
F30027: Precharging DC link
time monitoring
Reaction: OFF2
Acknowledgement:
IMMEDIATELY
F30036: Internal over-
temperature
Reaction: OFF2
Acknowledgement:
IMMEDIATELY
F30050: 24 V supply over-
voltage
Reaction: OFF2
Acknowledgement: POWER
ON
F30071: No new actual
values received from the
power unit module
Reaction: OFF2
Acknowledgement:
IMMEDIATELY
470
Cause
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 dis-
charge through the Braking Module.
The DC link has either a ground fault
•
or a short-circuit.
The pre-charging circuit is possibly
•
defective.
The temperature inside the drive has ex-
ceeded the permissible temperature limit.
Insufficient cooling, fan failure.
•
Overload.
•
Surrounding air temperature too high.
•
The voltage monitor signals an overvolt-
age fault on the module.
The number of actual value telegrams
from the power unit module that have
failed has exceeded the permissible num-
ber.
Remedy
Check the line supply voltage at the input ter-
minals.
Check whether the fan is running.
•
Check the fan elements.
•
Check whether the surrounding air temper-
•
ature is in the permissible range.
Notice:
This fault can only be acknowledged once the
permissible temperature limit minus 5 K has
been fallen below.
Check the 24 V power supply.
•
Replace the module if necessary.
•
Replace the module if necessary.
6FC5397-4EP10-0BA8, 07/2018
Commissioning Manual