Causes: Turn the main switch off and on. Replace the HDD.
Code: 900
Description: Electrical counter error
Causes: Turn the main switch off and on. Check the connection between NVRAM and controller. Replace the NVRAM. Replace the controller.
Code: 990
Description: Software performance error
Causes: Turn the main switch off and on. Reinstall the controller and/or engine main firmware. See NOTE at the end of this table.
Code: 991
Description: Unexpected software error
Causes: The machine does not stop and the SC code is not displayed. The machine automatically recovers. However, the SC code is logged in the engine summary sheet (SMC).
Code: 998
Description: Application start error
Causes: Turn the main switch off and on. Check that the RAM DIMM and ROM DIMM are properly connected. Reinstall the controller system firmware. Replace the controller.
Code: 999
Description: Program installation error
Causes: Controller DIP SW1 setting incorrect. Defective software on IC card. Controller software download error. Replace the controller.