Yaskawa iQpump Micro - Manual (Page 166)

Digital Operator Display Fault Name
Cause Possible Solution
Control circuit is damaged
• Cycle power to the drive.
• If the problem continues, replace the drive.
Control circuit terminals have shorted out
(+V, AC).
• Check for wiring errors along the control circuit terminals.
• Correct the wiring.
Check the resistance of the speed potentiometer and related wiring.
Control terminal input current has
exceeded allowable levels.
• Check the input current.
• Reduce the current input to control circuit terminal (+V) to 20 mA.
Digital Operator Display Fault Name
CPF03
PWM Data Error
There is a problem with the PWM data.
Cause Possible Solution
Hardware is damaged Replace the drive.
Digital Operator Display Fault Name
CPF06
EEPROM Memory Data Error
Error in the data saved to EEPROM
Cause Possible Solution
There is an error in EEPROM control
circuit
• Turn off the power and check the connection between the control board and the drive.
• If the problem continues, replace the drive.
The power supply was switched off while
parameters were being saved to the drive
Reinitialize the drive (A1-03 = 2220, 3330).
Digital Operator Display Fault Name
CPF07
Terminal Board Communications Error
A communication error occurred at the terminal board.
Cause Possible Solution
There is a faulty connection between the
terminal board and the control board
Turn off the power and reconnect the control circuit terminals.
Digital Operator Display Fault Name
CPF08
EEPROM Serial Communication Fault
EEPROM communications are not functioning properly.
Cause Possible Solution
Terminal board or control board is not
connected properly.
Turn the power off and check the control terminal connections.
There is a faulty connection between the
terminal board and the control board
Turn off the power and reconnect the control circuit terminals.
Digital Operator Display Fault Name
CPF11 RAM Fault
Cause Possible Solution
Hardware is damaged Replace the drive.
Digital Operator Display Fault Name
CPF12
FLASH Memory Fault
Problem with the ROM (FLASH memory).
Cause Possible Solution
Hardware is damaged Replace the drive.
Digital Operator Display Fault Name
CPF13
Watchdog Circuit Exception
Self-diagnostics problem.
Cause Possible Solution
5.2 Fault Detection
166 YASKAWA TOEP YAIQPM 03B YASKAWA AC Drive - iQpump Micro User Manual