YASKAWA P1000 Technical Manual page 192

6.4 Fault Detection
HOA Keypad Display
CPF20 or CPF21
Cause
Hardware is damaged
HOA Keypad Display
CPF22
Cause
Hybrid IC failure on the power board
HOA Keypad Display
CPF23
Cause
Hardware is damaged
HOA Keypad Display
CPF24
Cause
Hardware is damaged
HOA Keypad Display
EF0
Cause
An external fault was received from the serial
communications network
An external fault (EF0) digital input became
active.
Faults FB01 to FB09, FB13, or FB14 were
declared by the bypass controller.
HOA Keypad Display
Err
Cause
Noise has corrupted data while writing to the
EEPROM
Hardware problem
HOA Keypad Display
FAn
192
Control Circuit Error
• 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.
Hybrid IC Failure
• Cycle power to the drive.
• If the problem continues, replace the power board or the entire drive. Contact Yaskawa or a
Yaskawa representative for instructions on replacing the power board.
Control Board Connection Error
Connection error between the control board and the drive
• Turn off the power and check the connection between the control board and 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.
Drive Unit Signal Fault
The drive capacity cannot be detected correctly (drive capacity is checked when the drive is powered
up).
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.
Option Card External Fault
An external fault condition is present.
• Remove the cause of the external fault.
• Remove the external fault input from the controller.
• Verify that the controller program is correct.
Remove the cause of the external fault.
Remove the cause of the bypass controller fault.
EEPROM Write Error
Data cannot be written to the EEPROM
• Press "ENTER" on the HOA keypad.
• Correct the parameter setting.
• 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.
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.
Internal Fan Fault
Fan or magnetic contactor failure
YASKAWA SIEP YAIP1B 01B YASKAWA AC Drive – P1000 Bypass Technical Manual
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