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C - 4 Error Code
4.1 Classification of error code
The error code is displayed with the numerical value having four digits. The first digit (E1) indicates the error group. The following three- digit number indicates the individual code within the error group.
E1 E2 E3 E4
Individual code
Group code
Group 0: Warning (Refer to Chapter B 3.2 Warning Code and Model Comparison Table)
Group 1: Communication device (transmitter, etc.) error
Group 2: Detector abnormality or abnormal combination of detectors
Group 3: AML internal abnormality (system abnormality). When this abnormality occurs, the execution of control software is aborted.
For about the error code table, refer to “4.4 Error code table ”
4.2 Error history
The error codes from group 1 to 3 are stored in the AML together with the error occurrence time. (Note 1)
The maximum of 50 error items are stored in the chronological order of occurrence. When the number of error items exceeds 50, the oldest record is deleted each time a new error occurs.
(Note 1: The error code in group 3 is rarely stored.)
4.3 Error notification
When the AML detects an error, it displays the error code on the LCD and, at the same time, it outputs the beep sound to notify that an error has occurred. The error code continues to be displayed while the error exists.

When two or more errors occur simultaneously, each of the error codes is displayed.
4.4 Error code table
4.4.1 Communication device error (transmitter, etc.)
- Crane operation
: All the operations are possible.
: All the operations are stopped.
Port 1: Serial port connected with signal transmitter (for jib)
Port 2: Serial port connected with MDT (Multiplex Data Transmitter)
Serial port transmission line 1 open
Notification is issued that the transmitter connected with port 1 cannot receive data from the AML. (Transmission break)
E1001
Cause: Communication line from AML to transmitter is open Radio wave interference, device malfunction
Remedy: Check the wiring to the transmitter for conductivity. If no conductivity exists, replace or repair the wiring. Replace the transmitter or AML’s power circuit board.
Serial port transmission line 2 open
Notification is issued that the transmitter connected with port 2 cannot receive data from the AML. (Transmission break)
E1002
Cause: Communication line from AML to transmitter is open
Radio wave interference, device malfunction
Remedy: Check the wiring to the transmitter for conductivity. If no conductivity exists, replace or repair the wiring. Replace the transmitter or AML’s power circuit board.
Serial port reception line 1 open
The AML cannot receive data from the transmitter connected with port 1. (Reception break)
E1003
Cause: Communication line from transmitter to AML is open.
Radio wave interference, device malfunction
Remedy: Check the wiring to the transmitter for conductivity. If no conductivity exists, replace or repair the wiring. Replace the transmitter or AML’s power circuit board. Replace the serial port fuse of AML.
Serial port reception line 2 open
The AML cannot receive data from the transmitter connected with port 2. (Reception break)
E1004
Cause: Communication line from transmitter to AML is open.
Radio wave interference, device malfunction
Remedy: Check the wiring to the transmitter for conductivity. If no conductivity exists, replac e or repair the wiring. Replace the transmitter or AML’s power circuit board. Replace the serial port fuse of AML.
Transmitter 1 defect
Transmitter connected with port 1 has detected an internal abnormality.
E1005
Cause: Transmitter malfunction Refer to transmitter repair manual.
Remedy: Replace the defective transmitter.
E1006
Transmitter 2 defect