Troubleshooting
6-9
Part 1120277_01
E 2012 Nordson Corporation
Table 6-3 Motor Drive Faults (contd)
Fault Code Probable Cause Corrective Action
OLF
Motor overload
S Material exceeds the operating
viscosity range
S Excessive motor current
S Overpressure condition caused by
PCV failure
S Use a material that falls within the
allowable viscosity range. Refer t o
Section 8, Technical Data, for viscosity
ranges.
S Check the motor load. Wait for the motor
drive to cool down before restarting.
S If the operating hydraulic pressure
exceeds the maximum allowable
pressure, replace the PCV. Refer to
Section 8, Technical Data, for pressure
ranges.
OPF
Motor phase loss
Loss of one or more phases at motor
drive output
Check the connections between the motor
driveandthemotor.
OSF
Overvoltage
S Line voltage too high
S Disturbed line supply
Check the unit input line voltage. Refer to
Section 8, Technical Data, for allowable input
voltage range.
CFF
Configuration fault
Motor drive parameter(s) changed Contact your Nordson representative.
USF
Under voltage
S Line supply too low
S Transient voltage dip
Check the unit input line voltage. Refer to
Section 8, Technical Data, for allowable input
voltage range.
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