4.4.2 Diagnostic Alarms

Diagnostic alarms indicate a possible fault within the controller or connected devices.

Display shows	What it means	What to do about it
E.Conf	A change made to a parameter takes a finite time to be entered. If the power to the controller is turned off before the change has been entered then this alarm will occur.	Avoid turning the power off while ConF is flashing. Enter configuration mode then return to the required operating mode. It may be necessary to re-enter the parameter change since it will not have been entered in the previous configuration.
E.CaL	Calibration error	Re-instate Factory calibration, section 9.2.6.
E2.Er	EEPROM error (see section 8.4)	Return to factory for repair
E2.Fr	Write frequency too high	Refer to section 4.3.12
EE.Er	Non-volatile memory error	Note the error and contact your supplier
E.Lin	Invalid input type.	Go to the INPUT list in configuration level and set a valid thermocouple or input type
Emod	OP1, OP2, or OP3 has been changed	If this has been field changed by the installation of a new board, enter configuration level, then exit back to operator level. If the message occurs at any other time return to factory for repair.
E.tUn	Autotune error	An autotune has been unsuccessful. This message can take around two hours to be shown. Check that the loop is closed, the controller is in Auto mode and the controller outputs and the loop itself respond correctly when changes are made to the setpoint. If this message occurs, FAIL will also be shown in the A.tUn parameter in Level 2, section 4.6.2. To clear E.tUn change A.tUn to off. Auto-tune is described in section 7.2.