YASKAWA A1000 Technical Manual page 338

6.4 Fault Detection
Digital Operator Display
Cause
Hardware is damaged.
Digital Operator Display
Cause
Hardware is damaged.
Digital Operator Display
Cause
Hardware is damaged.
Digital Operator Display
or
CPF20 or CPF21
<1>
Cause
Hardware is damaged.
Digital Operator Display
Cause
Hybrid IC on the main circuit is damaged.
Digital Operator Display
Cause
Hardware is damaged.
Digital Operator Display
Cause
Hardware is damaged.
Digital Operator Display
Cause
Terminal board is not connected correctly.
Digital Operator Display
to ,
CPF26 to CPF35,
CPF40 to CPF45
to
<2>
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 if terminal RP is used
as speed feedback input in V/f control.
Motor brake engaged.
338
Timing Fault
CPF17
A timing error occurred during an internal process.
Replace the drive.
Control Circuit Fault
CPF18
CPU error. Non-Maskable Interrupt (An unusual interrupt was triggered by noise, etc.)
Replace the drive.
Control Circuit Fault
CPF19
CPU error (Manual reset due to noise, etc.)
Replace the drive.
Control Circuit Error
• Cycle power to the drive.
• If the problem continues, replace either the control board or the entire drive. For instructions on replacing the control board,
contact YASKAWA or your nearest sales representative.
CPF22
Hybrid IC Error
• Cycle power to the drive.
• If the problem continues, replace either the control board or the entire drive. For instructions on replacing the control board,
contact YASKAWA or your nearest sales representative.
Control Board Connection Error
CPF23
Connection error between the control board and the drive
• Turn the power off and check the connection between the control board and the drive.
• If the problem continues, replace either the control board or the entire drive. For instructions on replacing the control board,
contact YASKAWA or your nearest sales representative.
Drive Unit Signal Fault
CPF24
The drive capacity cannot be detected correctly (drive capacity is checked when the drive is powered up).
Replace either the control board or the entire drive. For instructions on replacing the control board, contact YASKAWA or your
nearest sales representative.
CPF25 Terminal Board not Connected
Reconnect the terminal board to the connector on the drive, then cycle the power to the drive.
Control Circuit Error
CPU error
Replace either the control board or the entire drive. For instructions on replacing the control board, contact YASKAWA or your
nearest sales representative.
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.
Ensure the motor brake releases properly.
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
Possible Solution
Refer to Diagnosing and Resetting Faults on page
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
Possible Solution
YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual
366.