YASKAWA CIMR-JC4A0002BAA Quick Start Manual page 132

LED Operator Display
CPF02
Cause
Control circuit is damaged.
Control circuit terminals have
shorted out (+V, AC).
Control terminal input current has
exceeded allowable levels.
LED Operator Display
CPF06
Cause
Control circuit is damaged.
The power supply was switched off
when parameters were written (e.g.,
using an option unit).
The power supply was switched off
within 5 seconds after changing the
frequency reference when o2-05 is
set to 1.
LED Operator Display
CPF08
Cause
Control circuit is damaged.
LED Operator Display
or CPF20 or
CPF21
Cause
Hardware is damaged.
YASKAWA ELECTRIC TOEP C710606 26B YASKAWA AC Drive – J1000 Quick Start Guide
A/D Conversion Error
An A/D conversion error occurred.
Cycle power to the drive. If the problem continues, replace the drive.
• Check for wiring errors along the control circuit terminals.
• Correct the wiring.
Check the resistance of the speed potentiometer and related wiring.
• Check the input current.
• Reduce the current input to control circuit terminal (+V) to 20 mA.
EEPROM Data Error
There is an error in the data saved to EEPROM.
Cycle power to the drive. If the problem continues, replace the drive.
• Cycle power to the drive and check operation again.
• Initialize the drive using A1-03.
• If the problem continues, replace the drive.
Set up the external operation to allow at least 5 seconds pass before the power
supply is shut off and after changing the frequency reference while o2-05 is set
to 1.
EEPROM Communication Fault
EEPROM communications are not functioning properly.
Cycle power to the drive. If the problem persists, 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.
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5.4 Fault Detection
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
Possible Solution
Fault Name
Possible Solution
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