Error Name/Error Condition/Major Cause/Solution
FFC connection error (connector disconnected) between BiCU (PCB16) and IOB
(PCB17) is detected during the startup operation of the engine (when the main
power is turned on or when the machine returns from energy save mode)
• FFC defective or disconnected
• BiCU (PCB16) defective
• IOB (PCB17) defective
1. Turn the main power OFF/ON.
2. Reconnect the FFC between BiCU (PCB16) and IOB (PCB17).
3. Replace the FFC between BiCU (PCB16) and IOB (PCB17).
4. Replace the BiCU (PCB16).
5. Replace the IOB (PCB17).
Error Name/Error Condition/Major Cause/Solution
MACARON Connection Error (IM 550F/600F/600SRF) / BREIT Connection Error
(P 800/801)
The signal connection error is detected between CPU and MACARON (IM
550F/600F/600SRF) / BREIT (P 800/801) during the startup operation of the
engine (when the main power is turned on or when the machine returns from
energy save mode).
1. Turn the main power OFF/ON.
2. Replace the BiCU (PCB16).
Error Name/Error Condition/Major Cause/Solution
IPUASIC1 Connection Error
Communication error between the CPU and IPUASIC1 is detected.
1. Turn the main power OFF/ON.
2. Replace the BiCU (PCB16).
Error Name/Error Condition/Major Cause/Solution
Master Device Operating Mode Setting Error
The mode setting error of CPU is detected during the startup operation of the
engine (when the main power is turned on or when the machine returns from
energy save mode).
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