15 TROUBLESHOOTING

MELSEC-Q

 

Related buffer memory

Set range

 

 

 

address

 

Remedy

 

 

 

(Setting with sequence program)

 

Axis 1

Axis 2

Axis 3

Axis 4

 

 

 

 

 

 

 

 

 

 

 

 

ABS setting direction in the

0: Shortcut

• Set the ABS setting direction in the unit of degree

 

 

unit of degree

 

within the setting range.

 

 

 

1: Clockwise

 

 

 

 

 

• Set "0" when the software stroke limits are valid.

 

1550

1650

1750

1850

2: Counterclockwise

 

(Refer to Section 9.1.5)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Software stroke limit

 

 

 

 

upper limit

 

 

 

 

18

168

318

468

• [mm] [inch] [pulse]

Invalidate the software stroke limit.

 

19

169

319

469

–2147483648 to 2147483647

(To invalidate, set the software stroke limit upper limit

 

Software stroke limit

• [degree]

value to the software stroke limit lower limit value.)

 

 

lower limit

 

0 to 35999999

(Refer to Section 9.1.5)

 

20

170

320

470

 

 

 

21

171

321

471

 

 

 

 

 

 

 

Clear the setting of the PLC CPU module parameter

"Output at error stop".

 

 

 

 

 

(Refer to "QCPU User’s Manual")

 

 

 

 

 

 

 

 

The flash ROM is expected to be at the end of its

 

 

writable life.

 

 

 

 

 

 

 

 

 

Replace the flash ROM with a new one.

 

 

 

 

 

 

 

 

 

1901

 

<Parameter initialization request>

Return the parameter to that set at the time of delivery

 

 

 

1: Parameter initialization is

from the plant. (Refer to Section 13.2)

 

 

 

 

 

 

requested

 

 

 

 

 

 

 

 

 

 

(Refer to "QCPU User’s Manual")

 

 

 

 

 

 

 

 

 

 

 

 

 

 

<ABRST

status>

• When executing the ABRST

instruction, set the

 

 

 

 

 

0: Communication complete

 

 

 

 

 

status to 0 (refer to Section 14.3).

 

 

 

 

 

(received from the servo amplifier)

 

 

 

 

 

• When executing the PSTRT

instruction, set the

 

 

 

 

 

<PSTRT

start No.>

start No. to within the setting range (refer to Section

 

 

 

 

 

 

 

 

 

 

 

 

 

<TEACH

teaching data selection>

14.4).

 

 

0: The current feed value is written to

• When executing the TEACH

instruction, set the

 

 

 

 

 

the positioning address.

teaching data selection and positioning data No. to

 

 

 

 

 

1: The current feed value is written to

within the setting range (refer to Section 14.5).

 

 

 

 

 

the arc address.

 

• Do not specify the instruction of a non-existent axis by

 

 

 

 

 

<TEACH

positioning data No.>

the ABRST , PSTRT and TEACH instructions

 

 

 

 

 

(refer to Section 14.3 to Section 14.5).

 

 

 

 

 

 

1 to 600

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Review the sequence program so that data is not

 

 

 

 

 

 

 

 

written continuously to the flash ROM. (Using Md.19 in

 

 

Section 5.6.1, the number of flash ROM write times can

 

 

be monitored.)

 

 

 

 

 

 

 

 

 

(If this error has occurred in a proper using method,

 

 

 

 

 

 

 

 

writing is enabled by resetting the error, switching

 

 

 

 

 

 

 

 

power OFF, then ON, or resetting the PLC CPU.)

 

 

 

 

 

 

 

 

 

 

 

A trouble occurs. Repair.

 

 

 

 

 

 

 

 

 

 

 

15 - 23

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Image 627
Mitsubishi Electronics QD75D, QD75P Set the ABS setting direction in the unit of degree, Within the setting range, 14.4