15 TROUBLESHOOTING

MELSEC-Q

 

Related buffer memory

Set range

 

 

 

address

Remedy

 

 

(Setting with sequence program)

 

Axis 1

Axis 2

Axis 3

Axis 4

 

 

 

 

 

 

 

 

 

 

 

Normalize the block start data.

Refer to Section 5.4

"Block start data"

 

 

 

 

 

<Special start instruction>

Correct the instruction code of the special start data.

 

 

 

 

 

00H to 06H

(Refer to Section 5.4 Da.13 )

 

 

 

 

 

 

 

 

Refer to Section 5.3

Correct the control system.

 

"List of positioning data"

(Refer to Section 5.3 Da.2 )

 

 

 

 

 

 

 

 

 

 

1504

1604

1704

1804

<M code OFF request>

After turning OFF the M code ON signal, start the

 

1: M code ON signal is turned OFF

system. (Refer to Section 12.7.3)

 

 

 

 

 

 

 

 

 

 

 

 

 

Check the sequence program which turns ON/OFF the

 

PLC READY signal (Y0), and turn ON the PLC READY

 

 

 

 

 

 

signal. Then start the system.

 

Check the QD75 READY ON signal, and then start the

 

system. (Refer to Section 3.3.2)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

<Positioning start No.>

 

 

1500

1600

1700

1800

1 to 600,

Normalize the positioning start No.

 

7000 to 7004,

(Refer to Section 12.7.8)

 

 

 

 

 

 

 

 

 

 

9001 to 9004

 

 

 

 

 

 

 

 

 

 

 

 

 

<Maximum radius>

Correct the positioning data.

 

Refer to Section 5.3

536870912

(Refer to Section 9.2.10, 9.2.11)

 

"List of positioning data"

 

 

 

 

 

 

 

<LOOP to LEND>

Set 1 to 65535 in LOOP. (Refer to Section 9.2.22)

 

 

 

 

 

1 to 65535

 

 

 

 

 

 

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Mitsubishi Electronics QD75D Correct the instruction code of the special start data, Refer to .4 Da.13, Refer to .2.10