Azbil MagneW Two-wire PLUS+ MTG15A, User Manual

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5-8. Description of Error Messages
Introduction
Errors are classified into critical failure and non-critical failure.
Critical failure
Critical failure may obstruct the electromagnetic flowmeter operation, if not corrected,
ultimately damage the flowmeter. When critical failure occurs during operation, an error
message will appear on the converter’s display and the electromagnetic flowmeter will
continue to output the preset value in the abnormality treatment (failsafe) direction. The error
message and the self-diagnostic results will be visible on the display.
Perform the proper correction measures, referring to the actions below.
Error code of serious trouble
Error
code
Error content Action LCD display
Err-02 CPU (ROM, RAM)
CHECK SUM ERROR
1. Restore power.
2. Replace ROM.
3. Replace main P/C.
Err - 02
CPU CHECK
ERROR
Err-04 NVM
READ AFTER WRITE
ERROR
1. Restore power.
2. Replace main P/C.
Err - 04
NVM CHECK
ERROR