Troubleshooting
6-6
Part 1107600_03
2014 Nordson Corporation
Motor Drive Faults (contd)
Table 6-3 Motor Drive Faults
Code Name Possible Cause Corrective Action
CrF
[PRECHARGE
FAULT]
Motor drive failed
Replace the motor drive.
EEF [EEPROM FAULT] Internal memory failure Check the environment for
electromagnetic compatibility. If the
environment is not the cause, replace
the motor drive
IF1 [INTERNAL FAULT] Unknown rating Restart the drive. If the fault does not
go away, replace the motor drive.
IF2 [INTERNAL FAULT] HMI card not recognized
HMI card incompatible
No display present
Restart the drive. If the fault does not
go away, replace the motor drive.
IF3 [INTERNAL FAULT] EEPROM failure Restart the drive. If the fault does not
go away, replace the motor drive.
IF4 [INTERNAL FAULT] Industrial EEPROM failure Restart the drive. If the fault does not
go away, replace the motor drive.
OCF [OVERCURRENT]
Parameters in the [SETTINGS]
(SEt) and [MOTOR CONTROL]
(drC) menus incorrect
Check the parameters in [SETTINGS]
(SEt) and [MOTOR CONTROL]
(drC). Refer to Motor Drive
Parameters later in this section.
Inertia or load too high Check the size of the motor/drive/load.
Mechanical issue with the motor
and pump assembly
Refer to AltaBlue Troubleshooting
Flowchart later in this section.
SCF [MOTOR SHORT
CIRCUIT]
Shortcircuit or grounding at the
drive output or significant ground
leakage current at drive output if
several motors are connected in
parallel
Check the cables connecting the drive
to the motor.
SOF [OVERSPEED] Instability or driving load too high Check the motor.
Continued...
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