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Digital Operator Display
Fault Name
oFC01
Option Card Fault at Option Port CN5-C
Option not properly connected
Cause
Possible Solution
The option card connection to port CN5-C is
faulty.
• Turn the power off and reconnect the option card.
• Check if the option card is properly plugged into the option port. Make sure the card is fixed properly.
• Try to use the card in a different option port (in case of a PG option, use port CN5-B). If the option
card works properly in a different option port, CN5-C is damaged, and the drive requires replacement.
If the error persists (oFA01 or oFb01 occur), replace the option card.
Digital Operator Display
Fault Name
oFC02
Option Card Fault at Option Port CN5-C
Same type of option card is currently connected
Cause
Possible Solution
An option card of the same type is already
installed in option port CN5-A or CN5-B.
Except for PG options, only one of each option card type can only be installed simultaneously. Make sure
only one type of option card is connected.
An input option card is already installed in
option port CN5-A or CN5-B.
Install a communication option, a digital input option, or an analog input option. More than one of the
same type of card cannot be installed simultaneously.
Three PG option boards are installed.
A maximum of two PG option boards can be used simultaneously. Remove the PG option board installed
into option port CN5-A.
Digital Operator Display
Fault Name
to
oFC03 to oFC11
Option Card Error Occurred at Option Port CN5-C
to
oFC12 to oFC17
Cause
Possible Solution
Option card or hardware is damaged
• Cycle power to the drive.
• If the problem continues, replace the control board or the entire drive. Contact Yaskawa or a Yaskawa
representative for instructions on replacing the control board.
Digital Operator Display
Fault Name
oH
Heatsink Overheat
The heatsink temperature exceeded the overheat pre-alarm level set to L8-02. The default value for L8-02
is determined by drive capacity (o2-04).
Cause
Possible Solution
Surrounding temperature is too high
• Check the temperature surrounding the drive. Verify temperature is within drive specifications.
• Improve the air circulation within the enclosure panel.
• Install a fan or air conditioner to cool the surrounding area.
• Remove anything near the drive that might be producing excessive heat.
Load is too heavy
• Measure the output current.
• Decrease the load.
Internal cooling fan is stopped
• Replace the cooling fan.
• After replacing the cooling fan, set parameter o4-03 to 0 to reset the cooling fan maintenance.
Digital Operator Display
Fault Name
oH1
Overheat 1 (Heatsink Overheat)
The heatsink temperature exceeded the drive overheat level. Overheat level is determined by drive
capacity (o2-04).
Cause
Possible Solution
Surrounding temperature is too high
• Check the temperature surrounding the drive.
• Improve the air circulation within the enclosure panel.
• Install a fan or air conditioner to cool the surrounding area.
• Remove anything near the drive that might be producing excessive heat.
Load is too heavy
• Measure the output current.
• Reduce the load.
2.4 Fault Detection
YASKAWA ELECTRIC SIEP YEAHHP 01B YASKAWA AC Drive – A1000 HHP Programming Manual
193
2
Troubleshooting
Summary of Contents for A1000 HHP
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