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                        - Code:                                                                                                                                                                                                                                                                                                               FE:5
- Description:  ZA Servo CPU on the Main board is not operating correctly.
- Causes:  The program for the ZA Servo CPU fails to be downloaded from the Main CPU in the initial operation.
                        - Code:                                                                                                                                                                                                                                                                                                               FE:6
- Description:  There is a communication problem between the Main CPU and Spindle Servo CPU.
- Causes:  There is a problem in the electric route between the Main CPU and the Spindle Servo CPU. Spindle Servo CPU is not operating correctly.
                        - Code:                                                                                                                                                                                                                                                                                                               FE:7
- Description:  Spindle Servo CPU on the Main board is not operating correctly.
- Causes:  The program for the Spindle Servo CPU fails to be downloaded from the Main CPU in the initial operation.
                        - Code:                                                                                                                                                                                                                                                                                                               FE:8
- Description:  X Limit SW can not be detected.
- Causes:  X Limit SW is not attached correctly or defective. There is a bad contact or a cut-line in the cable.
                        - Code:                                                                                                                                                                                                                                                                                                               FE:9
- Description:  Y Limit SW can not be detected.
- Causes:  Y Limit SW is not attached correctly or defective. There is a bad contact or a cut-line in the cable.
                        - Code:                                                                                                                                                                                                                                                                                                               IS:10
- Description:  There is a problem in the spindle control circuit.
- Causes:  There is a problem in the spindle control circuit or the electric route between the Main board and Spindle board.
                        - Code:                                                                                                                                                                                                                                                                                                               IS:2
- Description:  Power voltage of the Spindle Motor is 20V or less.
- Causes:  Spindle Motor is defective. There is a bad contact or a cut-line in the cable. Spindle Board is defective
                        - Code:                                                                                                                                                                                                                                                                                                               IS:6
- Description:  There is a problem in the Spindle motor.
- Causes:  Spindle Motor is defective There is a bad contact or a cut-line in the cable.