YASKAWA A1000 HHP Programming Manual page 186

2.4 Fault Detection
Digital Operator Display
There is a faulty connection between the
terminal board and the control board
Digital Operator Display
CPF20 or CPF21
or
Cause
Hardware is damaged
Digital Operator Display
Cause
Hybrid IC failure on the power board
Digital Operator Display
Cause
Hardware is damaged
Digital Operator Display
Cause
Hardware is damaged
Digital Operator Display
CPF26 to CPF35
to
CPF40 to CPF45
to
Cause
Hardware is damaged
Digital Operator Display
Cause
Load is too heavy
Acceleration and deceleration times are set too
short
The load is locked up
Parameters are not set appropriately
Incorrect speed feedback scaling when using
terminal RP as speed feedback input in V/f
control
186
• Turn off the power and reconnect the terminal 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.
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.
CPF22 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
CPF23
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
CPF24
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.
Control Circuit Error
CPU 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.
Speed Deviation (for Control Mode with PG and AOLV/PM without PG)
dEv
The deviation between the speed reference and speed feedback is greater than the setting in F1-10 for
longer than the time set to F1-11.
Reduce the load.
Increase the acceleration and deceleration times (C1-01 through C1-08).
Check the machine.
Check the settings of parameters F1-10 and F1-11.
• Set H6-02 to the same value as the speed feedback signal frequency when the motor runs at maximum
speed.
• Adjust the speed feedback signal using parameters H6-03 through H6-05.
• Make sure the speed feedback signal frequency does not exceed the maximum input frequency of
terminal RP.
YASKAWA ELECTRIC SIEP YEAHHP 01B YASKAWA AC Drive – A1000 HHP Programming Manual
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