Mitsubishi Electronics Q172DCPU, Q173DCPU APPENDICES, Table 1.1 Special relay list (Continued)

APPENDICES

Table 1.1 Special relay list (Continued)

No.	Name		Meaning	Details	Set by	Remark
					(When set)
SM243	No.4 CPU resetting	OFF : CPU No.4 reset cancel		• Goes OFF when reset of the CPU No.4 is cancelled.
		ON	: CPU No.4 resetting
		OFF : CPU No.1 normal		• Goes OFF when the CPU No.1 is normal. (Including a
SM244	No.1 CPU error	ON	: CPU No.1 during stop	continuation error)
			error	• Comes ON when the CPU No.1 is during stop error. (Note-2)
		OFF : CPU No.2 normal		• Goes OFF when the CPU No.2 is normal. (Including a
SM245	No.2 CPU error	ON	: CPU No.2 during stop	continuation error)	S (Change status)
			error	• Comes ON when the CPU No.2 is during stop error. (Note-2)
		OFF : CPU No.3 normal		• Goes OFF when the CPU No.3 is normal. (Including a
SM246	No.3 CPU error	ON	: CPU No.4 during stop	continuation error)
			error	• Comes ON when the CPU No.3 is during stop error. (Note-2)
		OFF : CPU No.4 normal		• Goes OFF when the CPU No.4 is normal. (Including a
SM247	No.4 CPU error	ON	: CPU No.4 during stop	continuation error)
			error	• Comes ON when the CPU No.4 is during stop error. (Note-2)
SM400	Always ON	ON		• Normally is ON.
		OFF			S (Main processing)
SM401	Always OFF	ON		• Normally is OFF.
		OFF
		ON	: PCPU READY	• When the PLC ready flag (M2000) turn OFF to ON, the
				fixed parameters, servo parameters and limit switch output
	PCPU READY		completion
SM500				data, etc., are checked, and if no error is detected, this flag
	complete	OFF : PCPU READY
			incompletion	turns ON.
				• Turn OFF with PLC ready flag (M2000) OFF.	S (Request)
				• Judge whether TEST mode ON or not using MT Developer.
SM501	Test mode ON	ON	: TEST mode ON	• If the TEST mode is not established by TEST mode request
		OFF : Except TEST mode		using MT Developer, the TEST mode request error flag
				(SM510) turns ON.
SM502	External forced stop	ON	: Forced stop OFF	• Confirm forced stop ON/OFF.	S (Operation cycle)
	input	OFF : Forced stop ON
		ON	: Digital oscilloscope is
SM503	Digital oscilloscope		stop	• Confirm the execution of digital oscilloscope using MT	S (Change status)
	executing	OFF : Digital oscilloscope is		Developer.
			executing
				• Turn ON if the TEST mode is not established by TEST mode
SM510	TEST mode request	ON	: Abnormal	request using MT Developer.
	error	OFF : Normal		• When this relay is ON, the error content is stored in the
				TEST mode request error register (SD510, SD511).
				• Turn ON when a "watchdog timer error" is detected by the
				Motion CPU self-diagnosis function.
SM512	Motion CPU WDT	ON	: Abnormal	When the Motion CPU detects a WDT error, it executes an
	error	OFF : Normal		immediate stop without deceleration of the operating axes.
				• The error cause is stored in the "Motion CPU WDT error
				cause (SD512)".
		ON	: At least one D714 to	• Judge whether normal/abnormal of the register for manual
	Manual pulse		D719 setting is	pulse generator axis setting register (D714 to D719).
SM513	generator axis setting		abnormal.	• When this relay is ON, the error content is stored in the
	error	OFF : All D714 to D719		manual pulse generator axis setting error register (SD513	S (Occur an error)
			settings are normal.	to SD515).
				• Judge whether normal/abnormal of the positioning data of
	Servo program	ON	: Abnormal	servo program(K) specified with the Motion SFC program,
SM516				and if error is detected this flag turns ON.
	setting error	OFF : Normal
				• The content of a servo program setting error is stored at
				SD516, SD517.
	Over heat warning	OFF : Normal		• Turn ON when the temperature of Motion CPU module
SM526				becomes specified value 85[°C] (185[°F]) or more.
	latch	ON	: Abnormal
				Remains ON even if normal status is restored.
				• Turn ON when the temperature of Motion CPU module
SM527	Over heat warning	OFF : Normal		becomes specified value 85[°C] (185[°F]) or more.
		ON	: Abnormal	Turn OFF when the temperature of Motion CPU module
				returns to normal.

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