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User’s manual for LGB004
Version 1, July 2023
7. Fault alarm information
The following table lists the alarm information and related fault causes and
handling methods emitted by the machine. You can follow the prompts to
troubleshoot; If the user cannot troubleshoot after trying or the alarm
message sent is not listed below, the user should immediately contact our
company's maintenance personnel.
After an abnormality occurs, the power should be turned
off first and restarted after the fault is resolved.
Table 3: Fault alarm information
Fault
codes
Code Definition
Troubleshooting
E2
overspeed
Speed up too fast, lower the gear up;
E3
Emergency stop switch
①
System emergency stop;
E4
Hall fault
②
Check if there is an open circuit at both ends of the
outlet wire of the emergency stop switch detection switch
(the button should be in a rotated out state);
E5
Brake overpressure
①
The motor Hall detection is incorrect;
E7
No speed measurement
②
Check if the Hall plug of the motor is properly connected;
E8
Communication
error
①
Check if the brake resistor is properly connected or if
the brake resistor is burnt out;
E9
Brake overpressure
②
Reduce the DEC value;
