Melsec-q, 15 troubleshooting – MITSUBISHI ELECTRIC Mitsubishi Programmable Logic Controller QD75D User Manual

Page 613

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15 - 9

MELSEC-Q

15 TROUBLESHOOTING

Related buffer memory

address

Axis 1 Axis 2 Axis 3 Axis 4

Set range

(Setting with sequence program)

Remedy

74
75

224
225

374
375

524
525

• Lower the OPR speed.

• Increase the dog signal input time.

(Refer to Section 8.2.3)

74
75

224
225

374
375

524
525

• Lower the OPR speed.

• Input external zero signals during the movement at a

creep speed.
(Refer to Section 8.2.5)

74
75

224
225

374
375

524
525

<OPR speed>

1 to 1000000 [pulse/s]

1 to 2000000000 [mm/min or others]

79

229

379

529

<OPR dwell time>

0 to 65535

• Lower the OPR speed.

• Increase the OPR dwell time.

(Refer to Section 8.2.4)

80
81

230
231

380
381

530
531

<Movement amount setting after

near-point dog ON>

0 to 2147483647

74
75

224
225

374
375

524
525

<OPR speed>

1 to 1000000 [pulse/s]

1 to 2000000000 [mm/min]

• Calculate the movement distance using a speed limit,

OPR speed, and deceleration time, and set the
movement amount after near-point dog ON so that
the distance becomes a deceleration distance or
longer.

• Lower the OPR speed.

• Adjust the near-point dog position so that the

movement amount after near-point dog ON becomes
longer. (Refer to Section 8.2.7, 8.2.8)

1500

1600

1700

1800

<Positioning start No.>

1 to 600

7000 to 7004
9001 to 9004

Execute the machine OPR (positioning No. 9001).
(Refer to Section 8.2)

1500

1600

1700

1800

<Positioning start No.>

1 to 600

7000 to 7004
9001 to 9004

Start the machine OPR (positioning start No. 9001)
again. (Refer to Section 8.2)

• 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
1519

1618
1619

1718
1719

1818
1819

<JOG speed>

1 to 1000000 [pulse/s]

1 to 2000000000 [mm/min or others]

Bring the JOG speed into the setting range.
(Refer to Section 11.2)

1517

1617

1717

1817

<Inching movement amount>

0 to 65535

Reduce the inching movement amount.
(Refer to Section 11.3)

Refer to Section 5.4

"List of block start data"

<Condition data No.>

1 to 10

Review the condition data No.
(Refer to Section 5.4

Da.14

)

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