YASKAWA V1000 Technical Manual page 255

LED Operator Display
CPF16
Cause
Hardware is damaged.
LED Operator Display
CPF17
Cause
Hardware is damaged.
LED Operator Display
CPF18
Cause
Hardware is damaged.
LED Operator Display
CPF19
Cause
Hardware is damaged.
LED Operator Display
CPF20 or CPF21
or
Cause
Hardware is damaged.
LED Operator Display
CPF22
Cause
Control circuit is damaged.
LED Operator Display
CPF23
Cause
Hardware is damaged.
LED Operator Display
CPF24
Cause
Hardware is damaged.
LED Operator Display
CPF25
Cause
Terminal board is not connected correctly.
LED Operator Display
Cause
Load is too heavy.
YASKAWA ELECTRIC SIEP C710606 16C YASKAWA AC Drive – V1000 Technical Manual
Clock Fault
Standard clock error.
Replace the drive.
Timing Fault
A timing error occurred during an internal process.
Replace the drive.
Control Circuit Fault
CPU error. Non-Maskable Interrupt (An unusual interrupt was triggered by noise, etc.)
Replace the drive.
Control Circuit Fault
CPU error (Manual reset 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
A/D conversion error.
• Cycle power to the drive.
• If the problem continues, replace the drive.
PWM Feedback Fault
PWM feedback error.
Replace the drive.
Drive Capacity Signal Fault
Entered a capacity that does not exist. (Checked when the drive is powered up.)
Replace the drive.
Terminal Board Not Connected
Reconnect the terminal board to the connector on the drive, then cycle the power to the drive.
Speed Deviation (for Simple V/f with PG)
dEv
According to the pulse input (RP), the speed deviation is greater than the setting in F1-10 for longer
than the time set to F1-11.
Reduce the load.
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
Possible Solution
Fault Name
Possible Solution
Fault Name
Possible Solution
6.4 Fault Detection
279.
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