YASKAWA V1000 Series Technical Manual page 230

6.4 Fault Detection
The drive attempted to write parameter values when the
drive input power was shut off (use communications option
card).
LED Operator Display
Cause
There is a fault connection between the terminal board and
control board.
LED Operator Display
Cause
Terminal board or control board is not connected properly. Turn the power off and check the control terminal connections.
LED Operator Display
Cause
Hardware is damaged.
LED Operator Display
Cause
Hardware is damaged.
LED Operator Display
Cause
Hardware is damaged.
LED Operator Display
Cause
Hardware is damaged.
LED Operator Display
Cause
Hardware is damaged.
LED Operator Display
Cause
Hardware is damaged.
LED Operator Display
Cause
Hardware is damaged.
LED Operator Display
Cause
Hardware is damaged.
LED Operator Display
CPF20 or CPF21
or
Cause
Hardware is damaged.
LED Operator Display
Cause
Control circuit is damaged.
LED Operator Display
Cause
Hardware is damaged.
LED Operator Display
230
Reinitialize the drive (A1-03).
Terminal Board Communications Error
CPF07
A communication error occurred at the terminal board.
Turn the power off and reconnect the control circuit terminals.
EEPROM Serial Communication Fault
CPF08
EEPROM communications are not functioning properly.
CPF11 RAM Fault
Replace the drive.
FLASH Memory Fault
CPF12
Problem with the ROM (FLASH memory).
Replace the drive.
Watchdog Circuit Exception
CPF13
Self-diagnostics problem.
Replace the drive.
Control Circuit Fault
CPF14
CPU error (CPU operates incorrectly due to noise, etc.)
Replace the drive.
Clock Fault
CPF16
Standard clock error.
Replace the drive.
Timing Fault
CPF17
A timing error occurred during an internal process.
Replace the drive.
Control Circuit Fault
CPF18
CPU error (CPU operates incorrectly due to noise, etc.)
Replace the drive.
Control Circuit Fault
CPF19
CPU error (CPU operates incorrectly due to noise, etc.)
Replace the drive.
One of the following faults occurred: RAM fault, FLASH memory error, watchdog circuit exception, clock error
• RAM fault.
• FLASH memory error (ROM error).
• Watchdog circuit exception (self-diagnostic error).
• Clock error.
Replace the drive.
A/D Conversion Fault
CPF22
A/D conversion error.
• Cycle power to the drive.
• If the problem continues, replace the drive.
PWM Feedback Fault
CPF23
PWM feedback error.
Replace the drive.
Drive Capacity Signal Fault
CPF24
Entered a capacity that does not exist. (Checked when the drive is powered up.)
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
Possible Solution
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
YASKAWA ELECTRIC SIEP C710606 18A YASKAWA AC Drive – V1000 Technical Manual (Preliminary)
247.