Option card or hardware is damaged Replace the option card.
Digital Operator Display Fault Name
oFC00
Option Card Connection Error at Option Port CN5-C
Option compatibility error
Cause Possible Solution
The option card installed into port CN5-C is
incompatible with the drive
Confirm that the drive supports the option card to be installed. Contact Yaskawa for assistance.
A communication option card has been
installed in option port CN5-C
Communication option cards are only supported by option port CN5-A. It is not possible to install more
than one comm. option.
Digital Operator Display Fault Name
oFC01
Option Card Fault at Option Port CN5-C
Option not properly connected
Cause Possible Solution
The option board 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 another option port (in case of a PG option use port CN5-B). If the option card
works in a different port, replace the drive because port CN5-C is damaged. If the error persists (oFA01
or oFb01 occur), replace the option board.
Digital Operator Display Fault Name
oFC02
Option Card Fault at Option Port CN5-C
Same type of option card already 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, each option card type can only be installed once. 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.
Make sure that a comm. option, a digital input option, or an analog input option is installed. The same
type of card cannot be installed twice.
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
to
oFC30 to oFC43
Cause Possible Solution
Option card or hardware is damaged Replace the option card.
Digital Operator Display Fault Name
oH
Heatsink Overheat
The temperature of the heatsink exceeded the overheat pre-alarm level set to L8-02. 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.
• Lower the carrier frequency (C6-02).
Internal cooling fan is stopped
• Replace the cooling fan. Refer to Cooling Fan Replacement on page 353.
• After replacing the drive, reset the cooling fan maintenance parameter (o4-03 = 0).
Digital Operator Display Fault Name
oH1
Overheat 1 (Heatsink Overheat)
The temperature of the heatsink exceeded the drive overheat level. The overheat level is determined by
drive capacity (o2-04).
Cause Possible Solution
6.4 Fault Detection
308
YASKAWA ELECTRIC SIEP C710616 31B YASKAWA AC Drive – A1000 Technical Manual
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