Error, fault and alarm codes of products - what each code means, its causes and what to do - read from the manufacturers’ manuals, with the manual page each answer comes from.
The electric current capacity of the motor is larger than that of the drive. The manual's first action is: “The electric current capacity of the motor is larger than that of the drive.”
Overload warning has been triggered. The manual's first action is: “The maximum overload [P0-13] has been reached.”
Excessive speed command has been entered. The manual's first action is: “You have entered a command that exceeds the maximum set speed.”
Excessive Torque Command has been detected. The manual's first action is: “You have entered a command that exceeds the maximum set torque.”
The backup battery has low voltage. The manual's first action is: “BackUp battery has not enough voltage”
RST_PFAIL indicates a main power phase loss. The manual's first action is: “If the [P0-06] DIGIT 2 is set to 1, the main power fails.”
Output contact point setting error The manual's first action is: “Factory reset [Cn-21].”
AL-71 indicates an invalid factory setting. The manual's first action is: “Factory reset [Cn-21].”
Parameter range error has occurred. The manual's first action is: “Factory reset [Cn-21].”
AL-63 indicates a parameter checksum error. The manual's first action is: “Factory reset [Cn-21].”
Motor overrun error code AL-55 indicates motor overrunning. The manual's first action is: “Check for incorrect wiring in the drive output and encoder. Also, check the connection and load status of the equipment.”
AL-54 indicates excessive speed error in the drive system The manual's first action is: “Check for incorrect wiring in the drive output and encoder. Also, check the connection and load status of the equipment.”
Over pulse CMD error indicates a pulse command frequency issue. The manual's first action is: “Check the pulse command frequency on the upper level controller, and check the command pulse type.”
AL-51 indicates an excessive positional error. The manual's first action is: “Check the excessive position command pulse setting [P4-11], wiring, limit contact point, gain setting, encoder setting, and electric gear r…
AL-50 indicates an overspeed condition The manual's first action is: “Check the encoder, encoder settings, encoder wiring, gain settings, motor wiring, motor ID, electric gear ratio, and speed command scale.”