Owner's manual
A-2
A
Error Messages and Corrective Action
This section lists the error messages displayed by LK-Navigator 2 when an error occurs, 
and applicable corrective action.
During operation
 During data communications
 When the controller is operating
Error message Cause Correction
(Communications) failed.
* Contents in () will change to 
indicate the item that failed. 
Controller is not ready for 
communications.
The display panel or RS-232C is 
in settings mode.
The controller is communicating 
via LK-Navigator 2 with another 
PC. 
An active communication error 
exists.
Set the controller to measurement 
mode.
Terminate the other LK-Navigator 
2.
Check wiring and communication 
settings, then retry. If the 
communications cable was 
disconnected, restart the 
controller and LK-Navigator 2.
System error occurred. An error occurred in the 
controller.
Check the display on the 
controller and configure it 
correctly.
Refer to the "LK-G5000 series 
User's manual" for operating 
instructions and display 
meanings for the controller. 
If this error occurs frequently, 
notify your nearest sales office.
Error message Cause Correction
The head unconnected error 
occurred.
The head is not connected. Connect the head and check that 
it operates correctly. Then, restart 
LK-Navigator 2.
An error occurred in 
HEAD(number).
A problem occurred in the head. Check that the head is 
connected properly. If the 
problem fails to reset, notify your 
nearest sales office.
The memory error occurred.
Do you want to initialize the 
memory?
The memory in the controller is 
abnormal.
Initialize the controller.Follow the 
guidance on the dialogs. This 
dialog cannot be cancelled.










