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Appendix D
Error Codes
The following is a list of error codes which are returned instead of end codes when an error has occurred.
Error code
Name
Meaning
E001
Memory error
The memory contents have been destroyed. Turn the E5ZD off and on.
E002
Sensor AD error
The sensor AD converter has failed. Turn the E5ZD off and on.
E003
Cold junction com-
pensation error
This error is generated when CN3 has been disconnected or the ambient tempera-
ture of the E5ZD has dropped below –15
°
C or exceeded 60
°
C.
E004
CT input AD error
The CT input AD converter has failed.
E011
Sensor error
The sensor input is not correct. Either the sensor is shorted or not wired correctly.
E012
Upper limit error
The measured temperature is 20
°
C or more over the set temperature range.
E013
Lower limit error
The measured temperature is 20
°
C or more below the set temperature range.
E022
Heater current up-
per limit error
The measured heater current value is more than 55 A.
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