Fault and warning codes
SINAMICS V20 Inverter
Operating Instructions, 07/2012, A5E03728167
239
Fault Cause Remedy
• r0949 = 1: Internal failure - no
hardware configuration vector
available.
• r0949 = 2: Internal failure - no
software configuration vector
available.
• r0949 = 11: Internal failure - inverter
code not supported.
• r0949 = 12: Internal failure -
software vector not possible.
• r0949 = 13: Wrong power module
fitted.
• r0949 > 1000: Internal failure -
wrong I/O board fitted.
F395
Acceptance test /
confirmation pending
This fault occurs after a startup clone. It
can also be caused by a faulty read
from the EEPROM, see F51 for more
details.
A startup clone could have changed
and might not match the application.
This parameter set needs to be
checked before the inverter can start a
motor.
• r0949 = 3/4: Inverter data change
• r0949 = 5: Startup clone via an
MMC / SD card has been performed
• r0949 = 10: Previous startup clone
was aborted
The current parameter set needs to be checked and
confirmed by clearing the fault.
F410
Cavitation protection
failure
Conditions exist for cavitation damage.
Cavitation damage is damage caused
to a pump in pumping systems when
the fluid is not flowing sufficiently. This
can lead to heat build up and
subsequent damage to the pump.
If cavitation is not occurring, reduce the cavitation
threshhold P2361, or increase the cavitation
protection delay. Ensure sensor feedback is
working.
F452
Belt failure
Load conditions on motor indicate belt
failure or mechanical fault.
• r0949 = 0: trip low torque / speed
• r0949 = 1: trip high torque / speed
Check the following:
• No breakage, seizure or obstruction of inverter
train.
• Apply lubrication if required.
If using an external speed sensor, check the
following parameters for correct function:
- P2192 (delay time for permitted deviation)
- P2182 (threshold frequency f1)
- P2183 (threshold frequency f2)
- P2184 (threshold frequency f3)
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