Mitsubishi Electronics FR-E5NC 3.3 Operation at Alarm Occurrence

INVERTER SETTING

3.3 Operation at Alarm Occurrence

Fault Location	Description			Operation Mode
			PU operation	External operation	CC-Link operation
Inverter alarm	Inverter operation		Stop (inverter trip)	Stop (inverter trip)	Stop (inverter trip)
	Data communication	E5NC	Continued	Continued	Continued
Communication alarm (E5NC)	Inverter operation		Continued	Continued	Stop (inverter trip)
	Data communication	E5NC	Stop	Stop	Stop

(1)Inverter alarm

Refer to the inverter manual and remove the cause of the alarm.

(2)Communication alarm

Check the LED states of the FR-E5NC and remove the cause of the alarm. (Refer to page 47.) Check the CC-Link master station.

(3) Communication error during CC-Link operation

When a communication error occurs, the error message "E.OPT" is displayed .

(4)Inverter reset (Note)

(Refer to page 44 for an inverter reset program example.)

	Resetting Method		Operation Mode
		CC-Link operation	External operation	PU operation
	Inverter reset (*1)	Allowed	Disallowed	Disallowed
PLC program	Instruction code
	Error reset at inverter fault (RY1A) (*2)	Allowed	Allowed	Allowed
Connect terminals RES-SD		Allowed	Allowed	Allowed
Switch off inverter power		Allowed	Allowed	Allowed

(*1) Inverter reset can be made any time.

(*2) Reset can be made only when the protective function of the inverter is activated.

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