Drive fails to operate properly due to noise
interference
• Review the possible solutions provided for handling noise interference.
• Review the section on handling noise interference and check the control circuit lines, main circuit lines,
and ground wiring.
Overexcitation gain is set too high
• Check if the fault occurs simultaneously with overexcitation function operation.
• Consider motor flux saturation and reduce the value of n3-13 (Overexcitation Deceleration Gain).
Run command was applied while motor was
coasting
• Set b3-01 to 1 to enable Speed Search at Start.
• Program the Speed Search command input through one of the multi-function contact input terminals
(H1-oo = 61 or 62).
The rated output current of the drive is too
small
Use a larger drive.
Digital Operator Display Fault Name
oFA00
Option Card Connection Error at Option Port CN5-A
Option compatibility error
oFA01
Option Card Fault at Option Port CN5-A
Option not properly connected
to
oFA03 to oFA06
Option Card Error Occurred at Option Port CN5-A
,
oFA10, oFA11
to
oFA12 to oFA17 Option Card Connection Error (CN5-A)
to
oFA30 to oFA43 Communication Option Card Connection Error (CN5-A)
oFb00
Option Card Fault at Option Port CN5-B
Option compatibility error
oFb01
Option Card Fault at Option Port CN5-B
Option not properly connected
oFb02
Option Card Fault at Option Port CN5-B
Same type of option card is currently connected
to
oFb03 to oFb11
Option card error occurred at Option Port CN5-B
to
oFb12 to oFb17
oFC00
Option Card Connection Error at Option Port CN5-C
Option compatibility error
oFC01
Option Card Fault at Option Port CN5-C
Option not properly connected
oFC02
Option Card Fault at Option Port CN5-C
Same type of option card is currently connected
to
oFC03 to oFC11
Option Card Error Occurred at Option Port CN5-C
to
oFC12 to oFC17
to
oFC50 to oFC55 Option Card Error Occurred at Option Port CN5-C
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.
5.2 Fault Detection
YASKAWA ELECTRIC TOEP YAIP1U 01B YASKAWA AC Drive - P1000 Quick Start Guide
139
5
Troubleshooting
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