YASKAWA CR700 - Page 61

13 Troubleshooting
YASKAWA TOEPC71061723A YASKAWA AC Drive CR700 Quick Start Guide 61
Code Name Causes Possible Solutions
EF0 Option Card External Fault
The communication option received an external
fault from the controller.
1. Find the device that caused the external fault and remove the
cause.
2. Clear the external fault input from the controller.
EF1 External Fault (Terminal S1)
MFDI terminal S1 caused an external fault through
an external device.
1. Find the device that caused the external fault and remove the
cause.
2. Clear the external fault input in the MFDI.
EF2 External Fault (Terminal S2)
MFDI terminal S2 caused an external fault through
an external device.
1. Find the device that caused the external fault and remove the
cause.
2. Clear the external fault input in the MFDI.
EF3 External Fault (Terminal S3)
MFDI terminal S3 caused an external fault through
an external device.
1. Find the device that caused the external fault and remove the
cause.
2. Clear the external fault input in the MFDI.
EF4 External Fault (Terminal S4)
MFDI terminal S4 caused an external fault through
an external device.
1. Find the device that caused the external fault and remove the
cause.
2. Clear the external fault input in the MFDI.
EF5 External Fault (Terminal S5)
MFDI terminal S5 caused an external fault through
an external device.
1. Find the device that caused the external fault and remove the
cause.
2. Clear the external fault input in the MFDI.
EF6 External Fault (Terminal S6)
MFDI terminal S6 caused an external fault through
an external device.
1. Find the device that caused the external fault and remove the
cause.
2. Clear the external fault input in the MFDI.
EF7 External Fault (Terminal S7)
MFDI terminal S7 caused an external fault through
an external device.
1. Find the device that caused the external fault and remove the
cause.
2. Clear the external fault input in the MFDI.
EF8 External Fault (Terminal S8)
MFDI terminal S8 caused an external fault through
an external device.
1. Find the device that caused the external fault and remove the
cause.
2. Clear the external fault input in the MFDI.
EF9 External Fault (Terminal S9)
MFDI terminal S9 caused an external fault through
an external device.
1. Find the device that caused the external fault and remove the
cause.
2. Clear the external fault input in the MFDI.
EF10 External Fault (Terminal S10)
MFDI terminal S10 caused an external fault through
an external device.
1. Find the device that caused the external fault and remove the
cause.
2. Clear the external fault input in the MFDI.
Err EEPROM Write Error
There was a problem with the EEPROM hardware. • Re-energize the drive.
• If the fault stays, replace the control board or the drive.
Contact Yaskawa or your nearest sales representative to
replace the board.
FAn Internal Fan Fault
The circulation fan stopped operating correctly. • Examine circulation fan operation.
• Re-energize the drive.
• Examine U4-03 [Cooling Fan Ope Time] and U4-04 [Cool
Fan Maintenance]. If the performance life of the circulation
fan is expired or if there is damage to the fan, replace the fan.
FAn1 Drive Cooling Fan Fault
The cooling fan stopped operating correctly. • Examine cooling fan operation.
• Re-energize the drive.
• Examine U4-03 [Cooling Fan Ope Time] and U4-04 [Cool
Fan Maintenance]. If the performance life of the cooling fan is
expired or if there is damage to the fan, replace the fan.
The circulation fan is damaged. • Examine circulation fan operation.
• Re-energize the drive.
• Examine U4-03 [Cooling Fan Ope Time] and U4-04 [Cool
Fan Maintenance]. If there is damage to the circulation fan or
if the performance life of the fan is expired, replace the fan.
GF Ground Fault
The motor is damaged from overheat or the motor
insulation is deteriorated.
Measure the motor insulation resistance, and replace the motor if
there is electrical conduction or unserviceable insulation.
The motor main circuit cable is contacting ground
to make a short circuit.
• Examine the motor main circuit cable for damage, and repair
short circuits.
• Measure the resistance between the motor main circuit cable
and the ground terminal. If there is electrical conduction,
replace the cable.
An increase in the stray capacitance of the cable and
the ground terminal caused an increase in the
leakage current.
• If the wiring length of the cable is more than 100 m, decrease
the carrier frequency.
• Decrease the stray capacitance.
There was a problem with the drive hardware. Replace the control board or the drive. For information about
replacing the control board, contact Yaskawa or your nearest sales
representative.
LF Output Phase Loss
The motor main circuit cable is disconnected. Connect motor main circuit cable wiring. Correct wiring errors in
the main circuit drive input power.
nSE Node Setup Error
The H1-xx = 47 [Node Setup (CANopen)] terminal
was activated during run.
Stop the drive when the Node Setup function is in use.
EN