Emerson FXMP25 User Manual page 61

Table 9-1 Trip indications
Trip
EEF Internal EEPROM trip
Internal FXMP25 EEPROM checksum. When this trip occurs all the parameters are set to
default. The trip can only be removed by entering a load default command (i.e. Eur or
USA) into Pr 00 before re-setting the FXMP25.
FdL
No current in the field supply circuit
Check the field circuit.
Check the FXMP25 internal fuses.
FOC
Excess current detected field current feedback
Maximum field current is present.
Check the field rated current (Pr 70) and the field rated voltage (Pr 73) are set correct to
the motor nameplate.
Check for short circuit on field circuit cabling.
Check integrity of motor insulation.
HF06 Unexpected interrupt
Hardware fault - return to supplier
HF07
Watchdog failure
Hardware fault - return to supplier
HF08
Interrupt clash
Hardware fault - return to supplier
HF11
Access to the EEPROM failed
Hardware fault - return to supplier
HF17
No comms from power processor
Hardware fault - return to supplier
HF19
Flash failure
Hardware fault - return to supplier
HF21
Power processor - Watchdog failure
Hardware fault - return to supplier
HF22
Power processor - Unexpected interrupt
Hardware fault - return to supplier
HF23 Power processor - Level overrun
Hardware fault - return to supplier
HF24
Power processor - No frequency at power up
Hardware fault - return to supplier
HF29
Fan fault
Hardware fault - return to supplier
O.ht1 FXMP25 overheat (SCR junction) based on thermal model
• Reduce ambient temperature or field current
• Check the fans are operating and venting is not blocked
O.ht2
Heatsink over temperature
• Reduce ambient temperature or field current
• Check the fans are operating and venting is not blocked
FXMP25 User Guide
Issue Number: 3
Diagnosis
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