Siemens SINAMICS V20 Operating Instructions Manual page 288

Faults and alarms
8.1 Faults
Fault
F350 (continued)
F395
Acceptance
test/confirmation pending
F410
Cavitation protection fail-
ure
F452
Load monitoring trip
288
Cause
r0949 = 13: Wrong power module
•
fitted.
r0949 > 1000: Internal failure -
•
wrong I/O board fitted.
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
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 subse-
quent damage to the pump.
Load conditions on motor indicate belt
failure or mechanical fault.
r0949 = 0: trip low torque / speed
•
r0949 = 1: trip high torque / speed
•
Remedy
The current parameter set needs to be checked and
confirmed by clearing the fault.
If cavitation is not occurring, reduce the cavitation
threshhold P2361, or increase the cavitation protec-
tion delay. Ensure sensor feedback is working.
Check the following:
No breakage, seizure or obstruction of inverter
•
train.
Apply lubrication if required.
•
If using an external speed sensor, check the follow-
ing parameters for correct function:
- P2192 (delay time for permitted deviation)
- P2182 (threshold frequency f1)
- P2183 (threshold frequency f2)
- P2184 (threshold frequency f3)
If using a specific torque / speed range, check pa-
rameters:
- P2182 (threshold frequency 1)
- P2183 (threshold frequency 2)
- P2184 (threshold frequency 3)
- P2185 (upper torque threshold 1)
- P2186 (lower torque threshold 1)
- P2187 (upper torque threshold 2)
- P2188 (lower torque threshold 2)
- P2189 (upper torque threshold 3)
- P2190 (lower torque threshold 3)
- P2192 (delay time for permitted deviation)
Operating Instructions, 09/2014, A5E34559884
SINAMICS V20 Inverter