Mitsubishi Electronics MR-J2S- CL specifications Remedies for warnings, Troubleshooting, 11

11. TROUBLESHOOTING

11.2.3 Remedies for warnings

If AL.E6 occurs, the servo off status is established. If any other warning occurs, operation can be continued but an alarm may take place or proper operation may not be performed. Use the optional servo configuration software to refer to the cause of warning.

Display	Name	Definition				Cause	Action
AL.92	Open battery	Absolute position	1. Battery cable is open.				Repair cable or changed.
	cable warning	detection system battery	2. Battery voltage dropped to 2.8V or less.				Change battery.
		voltage is low.
AL.97	Program	Program was started in a	After a program change, the program was				Power off/on the servo amplifier.
	operation disable	program operation	started without the servo amplifier being
		disable status.	powered off/on.
AL.98	Software limit	Software limit set in	1. Software limit was set within actual				Set parameter No. 48 to 51
	warning	parameter is reached.	operation range.				correctly.
			2. Program of position data in excess of				Set program correctly.
			software limit was executed.
			3. Software limit was reached during JOG				Perform operation within
			operation or manual pulse generator				software limit range.
			operation.
AL.9F	Battery warning	Voltage of battery for	Battery voltage fell to 3.2V or less.				Change the battery.
		absolute position
		detection system reduced.
AL.E0	Excessive	There is a possibility that	Regenerative power increased to 85% or				1. Reduce frequency of
	regenerative	regenerative power may	more of permissible regenerative power of				positioning.
	warning	exceed permissible	built-in regenerative brake resistor or				2. Change regenerative brake
		regenerative power of	regenerative brake option.				option for the one with larger
		built-in regenerative				Checking method	capacity.
		brake resistor or		Call the status display and check			3. Reduce load.
				regenerative load ratio.
		regenerative brake
		option.
AL.E1	Overload	There is a possibility that	Load increased to 85% or more of overload				Refer to AL.50, AL.51.
	warning	overload alarm 1 or 2	alarm 1 or 2 occurrence level.
		may occur.			Cause, checking method
				Refer to AL.50,51.
AL.E3	Absolute position	Absolute position encoder	1. Noise entered the encoder.				Take noise suppression
	counter warning	pulses faulty.					measures.
			2. Encoder faulty.				Change servo motor.
AL.E6	Servo forced stop	EMG-SG are open.	External forced stop was made valid.				Ensure safety and deactivate
	warning		(EMG-SG opened.)				forced stop.
AL.E9	Main circuit off	Servo was switched on					Switch on main circuit power.
	warning	with main circuit power
		off.

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