Error Name/Error Condition/Major Cause/Solution
3. Turn the main power OFF, replace the FFC between BiCU (PCB16) and IOB
(PCB17), and then turn the main power ON.
4. Turn the main power OFF, replace the IOB (PCB17), and then turn the main
power ON.
5. Turn the main power OFF, replace theBiCU (PCB16), and then turn the main
power ON.
Error Name/Error Condition/Major Cause/Solution
IOB (PCB17) Communication Error: Retry Timeout Error
Operation does not resume in 10 seconds after an error occurs.
• IOB (PCB17) defective
• BiCU (PCB16) defective
• FFC defective
1. Turn the main power OFF/ON.
2. Turn the main power OFF, replace the IOB (PCB17), and then turn the main
power ON.
3. Turn the main power OFF, replace theBiCU (PCB16), and then turn the main
power ON.
4. Turn the main power OFF, replace the FFC between BiCU (PCB16) and IOB
(PCB17), and then turn the main power ON.
Error Name/Error Condition/Major Cause/Solution
EEPROM Communication Error
EEPROM OPEN: Channel error
EEPROM OPEN: Device error
EEPROM OPEN: Communication abort error
EEPROM OPEN: Communication timeout error
EEPROM OPEN: Operation stopped error