Mitsubishi Melsec-Q QD75P1 User Manual page 592

Programmable logic controller q-series

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14 DEDICATED INSTRUCTIONS

Sequence program

Complete device

Complete state display

[Precautions]

(1) When an PSTRT

((D)+1) is turned ON, and the error code is stored in the complete status ((S)+1).

Check and take a measure against the error referring to Section 15.2 "List of error

(1) When positioning is started by the PSTRT instruction, the positioning start

signals (Y10 to Y13) and start complete signals (X10 to X13) will not turn ON.

To confirm that positioning control is being executed, use the PSTRT start

command or BUSY signals (XC to XF).

(2) If, after positioning has been started by the PSTRT instruction, a stop command

is input before positioning is complete, the complete device (D) turns ON one scan

and the execution of the PSTRT instruction is completed.

(3) The following dedicated instructions cannot be executed simultaneously for the

(Can be executed simultaneously for different axes.)

• Positioning start instructions (PSTRT1 to PSTRT4)

• Absolute position restoration instructions (ABRST1 to ABRST4)

• Teaching instructions (TEACH1 to TEACH4)

(4) The PSTRT

instruction can only be executed when the QD75 READY signal

(X0) is turned ON.

Even if the PSTRT

READY signal is turned OFF, the PSTRT

Before executing the PSTRT

and turn ON the QD75 READY signal (X0).

(5) When the remote I/O station

I/O module) is used, the dedicated instruction (PSTRT ) is unusable.

: For details of the remote I/O station, refer to Q Corresponding MELSECNET/H

Network System Reference Manual (Remote I/O Network).

execution completion

instruction is completed abnormally, the error complete signal

instruction execution request is given when the QD75

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

(Q Corresponding MELSECNET/H network remote

completed normally

instruction will not be executed. (not

Troubleshooting