Brother International BE-1201B-AC Instruction Manual - English - Page 238
ERROR E5 to ERROR FF frequently, Main shaft rotation speed error
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Chapter 12 Troubleshooting Symptom The main shaft motor lock error occurs. E-A8 frequently occurs. Wiper out error occurs. Main shaft rotation speed error occurs. Exhaust fan motor stops. ERROR E5 to ERROR FF frequently occur. All solenoids of head do not operate. Measures • Enter the encoder signal mode and manually turn the main shaft pulley. → If it is abnormally heavy, the main shaft mechanism is faulty. • Does the main shaft motor rotate at all when the error occurs? → If it does not rotate at all, check fuse F1 and F5 on the power supply PCB in the control box. Refer to the block diagram showing the cable connections and check to see if connection from the main shaft motor to the main PCB is proper. Also check connection of connectors P15 and P16 of the main PCB and connectors P1 and P2 on the power PCB in the box, and connection from connector P14 of the main PCB to the 14v terminal of the power transformer. • Manually turn the main shaft pulley in the encoder signal test mode and check to see if the stop position signal and encoder signal are proper. → If either of the signals does not change, refer to the block diagram showing the cable connections and check to see if connection from the encoder and stop position sensor to the main PCB is proper. • In the encoder signal test mode, manually turn the main shaft pulley and check to see that the stop position signal is correct. → If the signal does not change, refer to the cable connection block diagram and check to see if connection from the stop position sensor to the main PCB is proper. • Does the wiper remain projected? → If the wiper is tangled with a thread, remove it. If the wiper does not return smoothly, adjust it. • Enter the solenoid test mode and operate the wiper solenoid. Check the icon on the panel. → If the panel is not changed, check to see if connection from the wiper sensor to the head PCB is proper. Replace the wiper sensor with a new one. Replace the head PCB with a new one. • Enter the encoder signal test mode and manually turn the main shaft pulley. → If it is abnormally heavy, the main shaft mechanism is faulty. • Refer to the block diagram showing the cable connections and check to see if connection from the main shaft motor to the main PCB is proper. Also check the connection from connectors P14 of the main PCB to the 14v terminal of the power transformer. • Refer to the block diagram showing the cable connections and check to see if connection of connector P22 of the main PCB in the control box is proper. • Check fuse F3 on the power supply PCB. → If it is blown, replace it with a new one. If it becomes blown again, the 24v system circuit is faulty. • Replace the main PCB with a new one. • Refer to the block diagram showing cable connections and check fuse F2 on the power supply PCB. → If it is blown, replace it with a new one. The 60v circuit is faulty if the fuse is blown immediately after turning on the power even after replacing the fuse. 12-6 BE-0901E-AC-PC• BE-1201B-AC-PC