Danfoss Vacon NXP Applications Manual page 126

124 · vacon
F8 System Fault
A system fault indicates that there are several different fault situations in the drive operation.
S1 = Reserved
- Disturbance. Reset the unit and try again.
- If there is star coupler in the unit, check the fibre connections and phase order.
- Driver board or IGBT is broken.
- FR9 and the bigger drives, which includes not star coupler, ASIC board (VB00451), is broken.
- FR8 and smaller drives: control board is broken.
- FR8 and smaller drives: if there are boardsVB00449 / VB00450, the fault can be there.
S2 = Reserved
S3 = Reserved
S4 = Reserved
S5 = Reserved
S6 = Reserved
S7 = Charge switch
S8 = No power to driver card
S9 = Power unit communication (TX)
S10 = Power unit communication (Trip)
S11 = Power unit comm. (Measurement)
S12 = SystemBus synchronisation has failed in DriveSynch operation
S30 = Safe disable inputs are in different state (OPT-AF)
S31 = Thermistor short circuit detected (OPT-AF)
S32 = OPT-AF board has been removed
S33 = OPT-AF board EEPROM error
Possible cause and solutions
Correcting measures
9
Tel. +358 (0)201 2121 • Fax: +358 (0)201 2121 205
Fault codes