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20 Troubleshooting
Code
Name
oFC00
Option Not Compatible with Port
oFC01
Option Fault/Connection Error
oFC02
Duplicate Options
oFC03 to
Option Card Error Occurred at
oFC11
Option Port CN5-C
oFC12 to
Option Card Error Occurred at
oFC17
Option Port CN5-C
oFC50 to
Option Card Error Occurred at
oFC55
Option Port CN5-C
oH
Heatsink Overheat
oH1
Heatsink Overheat
oH3
Motor Overheat (PTC Input)
oH4
Motor Overheat Fault (PTC Input)
oL1
Motor Overload
86
Causes
The option connected to connector CN5-C is not
compatible.
The option card connected to connector CN5-C was
changed during operation.
The same option cards or the same type of option
cards are connected to connectors CN5-A, B, and C.
A fault occurred in the option card.
A fault occurred in the option card.
A fault occurred in the option card.
The ambient temperature is high and the heatsink
temperature of the drive is more than the value set in
L8-02 [Overheat Alarm Level].
The ambient temperature is high and the heatsink
temperature of the drive is more than the oH1
detection level.
The thermistor wiring that detects motor temperature
is defective.
The motor has overheated.
The load is too heavy.
The acceleration/deceleration times or cycle times are
too short.
Overload occurred while running at low speed.
L1-01 [Motor Overload (oL1) Protection] is set
incorrectly.
YASKAWA TOEPC71061782C GA800 Drive Installation & Primary Operation
Possible Solutions
Connect the option to the correct connector.
Note:
AI-A3, DI-A3, and communication options cannot be connected
to the CN5-C connector.
1.
De-energize the drive.
2.
Refer to the option card manual and correctly connect the
option card to the connector on the drive.
Connect the option card to the correct connector.
1.
De-energize the drive.
2.
Make sure that the option card is correctly connected to the
connector.
3.
If the problem continues, replace the option card.
1.
De-energize the drive.
2.
Make sure that the option card is correctly connected to the
connector.
3.
If the problem continues, replace the option card.
Refer to the manual for the PG-RT3 or PG-F3 option card.
• Measure the ambient temperature.
• Increase the airflow in the control panel.
• Install a cooling device (cooling fan or air conditioner) to lower
the ambient temperature.
• Remove objects near the drive that are producing too much heat.
• Measure the ambient temperature.
• Increase the airflow in the control panel.
• Install a cooling device (cooling fan or air conditioner) to lower
the ambient temperature.
• Remove objects near the drive that are producing too much heat.
Correct wiring errors.
• Check the load level, acceleration/deceleration time, and motor
start/stop frequency (cycle time).
• Decrease the load.
• Increase the values set in C1-01 to C1-08 [Acceleration/
Deceleration Times].
• Set E2-01 [Motor Rated Current (FLA)] correctly to the value
specified by the motor nameplate.
• Make sure that the motor cooling system is operating correctly,
and repair or replace it if it is damaged.
• Adjust E1-04 to E1-10 [V/f Pattern Parameters]. For motor 2,
adjust E3-04 to E3-10. Decrease the values set in E1-08 [Mid
Point A Voltage] and E1-10 [Minimum Output Voltage].
Note:
If the values set in E1-08 and E1-10 are too low, the overload
tolerance will decrease at low speeds.
Decrease the load.
Note:
Reset oL1 when U4-16 [Motor oL1 Level] < 100.
• Examine the acceleration/deceleration times and the motor start/
stop frequencies (cycle times).
• Increase the values set in C1-01 to C1-08 [Acceleration/
Deceleration Times].
• Decrease the load when running at low speed.
• Increase the motor speed.
• If the motor is run frequently at low speeds, replace the motor
with a larger motor or use a drive-dedicated motor.
Note:
For general-purpose motors, overload can occur while running
at low speed when operating at below the rated current.
Set L1-01 in as specified by the motor qualities for a drive-dedicated
motor.
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