Code: C-1254
Classification: SD: SD-513 abnormality
Cause:
After the 2nd folding knife motor (M14) starts the home position search operation, the 2nd folding knife home sensor/1 (PS18) does not become active within a specified period of time. Alternatively, the folding operation from PS18 side (OFF - ON - OFF of the 2nd folding knife home sensor/2 (PS19) does not complete even after a specified period of time.
Measures to take when alert occurs:
The main body and the option stop immediately.
Estimated abnormal parts:
- 2nd folding knife home sensor/1 (PS19)
- 2nd folding knife home sensor/2 (PS18)
- 2nd folding knife motor (M14)
- SD drive board (PCB2)
- SD control board (PCB1)
Press the help key to activate and deactivate the sub power switch (SW2) of the main body.
Note:
- Faulty part isolation allows you to use the machine temporarily.
- The message "Please call service" and "Press [Help] to disengage" are alternately displayed.
- When you press the help key, the message "Please turn on the power again" is displayed.
Solution:
- Check the 2nd folding knife drive section, and if there is any abnormality, clean or repair it.
- Check the connector connection and the wiring harness between PCB2 and the motor, PCB1 and the sensor. Then, repair them when there is any abnormality.(Wiring diagram: SD-513 (1/2): 6-N) (Wiring diagram: SD-513 (1/2): 16-B, 17-B).
- Check the connector connection and the wiring harness between PCB2 and PCB1, and if there is any abnormality, repair them.
- Check the I/O drive of the motor and the coupling of the gear, and repair or replace it when there is any abnormality.
- Check I/O and the operation of the sensor, and if there is any abnormality, repair or replace it.
- Replace PS18 or PS19.
- Replace M14.
- Replace PCB2.
- Replace PCB1.