Table of Contents
Advertisement
Code
Name
EF0
Option Card External Fault
EF1
External Fault (Terminal S1)
EF2
External Fault (Terminal S2)
EF3
External Fault (Terminal S3)
EF4
External Fault (Terminal S4)
EF5
External Fault (Terminal S5)
EF6
External Fault (Terminal S6)
EF7
External Fault (Terminal S7)
EF8
External Fault (Terminal S8)
Err
EEPROM Write Error
FAn1
Drive Cooling Fan Fault
FbH
Excessive PID Feedback
FbL
PID Feedback Loss
GF
Ground Fault
LF
Output Phase Loss
LF2
Output Current Imbalance
LSo
Low Speed Motor Step-Out
YASKAWA TOEPC71061782C GA800 Drive Installation & Primary Operation
Causes
The communication option received an external fault
from the controller.
MFDI terminal S1 caused an external fault through an
external device.
MFDI terminal S2 caused an external fault through an
external device.
MFDI terminal S3 caused an external fault through an
external device.
MFDI terminal S4 caused an external fault through an
external device.
MFDI terminal S5 caused an external fault through an
external device.
MFDI terminal S6 caused an external fault through an
external device.
MFDI terminal S7 caused an external fault through an
external device.
MFDI terminal S8 caused an external fault through an
external device.
There was a problem with the EEPROM hardware.
The cooling fan stopped operating correctly.
The FbH detection level is set incorrectly.
The FbL detection level is set incorrectly.
Overheating caused damage to the motor or the motor
insulation is not satisfactory.
The motor main circuit cable is contacting ground to
make a short circuit.
An increase in the stray capacitance of the cable and
the ground terminal caused an increase in the leakage
current.
There was a problem with the drive hardware.
The motor main circuit cable is disconnected.
Phase loss occurred in the wiring on the output side
of the drive.
The motor code set incorrectly.
The load is too large.
An external force on the load side caused the motor to
move at start.
20 Troubleshooting
Possible Solutions
1.
Find the device that caused the external fault and remove the
cause.
2.
Clear the external fault input from the controller.
1.
Find the device that caused the external fault and remove the
cause.
2.
Clear the external fault input in the MFDI.
1.
Find the device that caused the external fault and remove the
cause.
2.
Clear the external fault input in the MFDI.
1.
Find the device that caused the external fault and remove the
cause.
2.
Clear the external fault input in the MFDI.
1.
Find the device that caused the external fault and remove the
cause.
2.
Clear the external fault input in the MFDI.
1.
Find the device that caused the external fault and remove the
cause.
2.
Clear the external fault input in the MFDI.
1.
Find the device that caused the external fault and remove the
cause.
2.
Clear the external fault input in the MFDI.
1.
Find the device that caused the external fault and remove the
cause.
2.
Clear the external fault input in the MFDI.
1.
Find the device that caused the external fault and remove the
cause.
2.
Clear the external fault input in the MFDI.
• 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.
• 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.
Adjust b5-36 [PID High Feedback Detection Lvl] and b5-37 [PID
High Feedback Detection Time].
Adjust b5-13 [PID Feedback Loss Detection Lvl] and b5-14 [PID
Feedback Loss Detection Time].
Measure the motor insulation resistance, and replace the motor if
there is electrical conduction or unserviceable insulation.
• 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.
• If the wiring length of the cable is more than 100 m, decrease the
carrier frequency.
• Decrease the stray capacitance.
Replace the control board or the drive. For information about
replacing the control board, contact Yaskawa or your nearest sales
representative.
Connect motor main circuit cable wiring. Correct wiring errors in
the main circuit drive input power.
Examine for wiring errors or disconnected wires on the output side
of the drive, and repair problems.
• Set E5-01 [PM Motor Code Selection] correctly as specified by
the motor.
• For specialized motors, refer to the motor test report and set E5-
xx correctly.
• Decrease the load.
• Replace the drive and motor with larger capacity models.
Find and repair problems on the load side that cause the motor to
rotate from the load side.
83
Advertisement
Table of Contents
