Mitsubishi Electronics QD75D Lower the OPR speed Increase the dog signal input time, Longer

15 TROUBLESHOOTING

MELSEC-Q

Related buffer memory				Set range
	address				Remedy
				(Setting with sequence program)
Axis 1	Axis 2	Axis 3	Axis 4
74	224	374	524		• Lower the OPR speed.
					• Increase the dog signal input time.
75	225	375	525
					(Refer to Section 8.2.3)
				<OPR speed>
					• Lower the OPR speed.
				1 to 1000000 [pulse/s]
74	224	374	524	1 to 2000000000 [mm/min or others]	• Input external zero signals during the movement at a
75	225	375	525		creep speed.
					(Refer to Section 8.2.5)
74	224	374	524		• Lower the OPR speed.
75	225	375	525
					• Increase the OPR dwell time.
				<OPR dwell time>
79	229	379	529		(Refer to Section 8.2.4)
				0 to 65535
80	230	380	530	<Movement amount setting after	• Calculate the movement distance using a speed limit,
				near-point dog ON>	OPR speed, and deceleration time, and set the
81	231	381	531
				0 to 2147483647	movement amount after near-point dog ON so that
					the distance becomes a deceleration distance or
					longer.
74	224	374	524	<OPR speed>	• Lower the OPR speed.
				1 to 1000000 [pulse/s]
75	225	375	525		• Adjust the near-point dog position so that the
				1 to 2000000000 [mm/min]
					movement amount after near-point dog ON becomes
					longer. (Refer to Section 8.2.7, 8.2.8)
				<Positioning start No.>
1500	1600	1700	1800	1 to 600	Execute the machine OPR (positioning No. 9001).
				7000 to 7004	(Refer to Section 8.2)
				9001 to 9004
				<Positioning start No.>
1500	1600	1700	1800	1 to 600	Start the machine OPR (positioning start No. 9001)
				7000 to 7004	again. (Refer to Section 8.2)
				9001 to 9004
—	—	—	—	—	• Review the wiring. (Refer to Section 12.6)
					• Review the sequence program.
					• Review the wiring. (Refer to Section 12.6)
—	—	—	—	—	• Review the sequence program.
					• Review the dedicated instruction parameters.
					(Refer to Section 14.3)
1518	1618	1718	1818	<JOG speed>	Bring the JOG speed into the setting range.
				1 to 1000000 [pulse/s]
1519	1619	1719	1819		(Refer to Section 11.2)
				1 to 2000000000 [mm/min or others]
1517	1617	1717	1817	<Inching movement amount>	Reduce the inching movement amount.
				0 to 65535	(Refer to Section 11.3)
Refer to Section 5.4				<Condition data No.>	Review the condition data No.
"List of block start data"				1 to 10	(Refer to Section 5.4	)

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