SIEMENS VFD FAULTS CODE LIST PART-3

In this article we are going to discuss about siemens v20 vfd drive fault Cause and Remedy for this fault codes ( F80, F85, F100, F101, F221, F350, F395, F410, F452 )





F80 - FAULT: Signal lost on Analog Input


CAUSE :
  • Broken wire
  • Signal out of limits


F85 - FAULT: External Fault


CAUSE :
  • External fault triggered via command
  • input via control word 2, bit 13.


REMEDY :

  • Check P2106.
  • Disable control word 2 bit 13 as command source.
  • Disable terminal input for fault trigger

F100 - FAULT: Watchdog Reset

CAUSE :
  • Software Error


REMEDY :

  • Contact service department or change inverter.

F101 - FAULT: Stack overflow

CAUSE :
  • Software error or processor failure.


REMEDY :

  • Contact service department or change inverter.


F221 - FAULT: PID feedback below minimum value

CAUSE :
  • PID feedback below minimum value P2268.


REMEDY :

  • Change value of P2268.
  • Adjust feedback gain.


F222 - FAULT: PID feedback above maximum value
CAUSE :
  • PID feedback above maximum value P2267.


REMEDY :

  • Change value of P2267.
  • Adjust feedback gain.



F350 - FAULT: Configuration vector for the inverter failed


CAUSE :
  • During startup the inverter checks if the configuration vector (SZL vector) has been programmed correctly and if hardware matches the programmed vector. 
  • If not the inverter will trip.
  • 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.


REMEDY :

  • Internal failures cannot be fixed.
  • r0949 = 13 - Make sure the right power module is fitted.
  • Note: Fault needs power-cycle to be acknowledged.

F395 - FAULT: Acceptance test/confirmation pending


CAUSE :
  • 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


REMEDY :

  • The current parameter set needs to be checked and confirmed by clearing the fault.


F410 - FAULT: Cavitation protection failure

CAUSE :
  • 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.


REMEDY :

  • 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.

F452 - FAULT: Load Monitoring Trip
CAUSE :
  • Load conditions on motor indicate belt failure or mechanical fault.
  • r0949 = 0: trip low torque / speed
  • r0949 = 1: trip high torque / speed


REMEDY :

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)

If using a specific torque / speed range, check parameters:

  • 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)


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