5 DATA USED FOR POSITIONING CONTROL

MELSEC-Q

 

 

Storage item

 

 

 

 

 

 

 

Storage details

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Whenever an axis warning is reported, a related warning code is stored.

 

 

 

 

 

This area stores the latest warning code always. (Whenever an axis warning is

 

 

 

 

 

 

reported, a new warning code replaces the stored warning code.)

 

 

Md.24

Axis warning No.

 

 

 

 

 

 

When the "

 

 

 

 

 

 

 

 

Cd.5

Axis error reset" (axis control data) is set to ON, the axis

 

 

 

 

 

 

warning No. is cleared to "0".

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

This area stores an M code that is currently active (i.e. set to the positioning data

 

 

 

 

relating to the current operation).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Md.25

Valid M code

 

Update timing

: turning ON of the M code ON signal

 

 

 

 

 

 

 

 

When the PLC READY signal (Y0) goes OFF, the value is set to "0".

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

This area stores the axis operation status.

 

 

Md.26

Axis operation status

 

 

 

 

 

 

 

 

 

 

 

"

 

 

 

Command speed" of the positioning data currently in execution is stored.

 

 

 

 

Da.8

 

 

 

(Stores "0" under the speed control.)

 

 

 

 

 

If "

 

Command speed" is set to "-1", this area stores the command speed

 

 

 

 

 

Da.8

 

 

 

 

 

set by the positioning data used one step earlier.

 

 

Md.27

Current speed

 

 

 

If "

 

Command speed" is set to a value other than "-1", this area stores the

 

 

 

 

 

Da.8

 

 

 

 

 

 

 

 

 

command speed set by the current positioning data.

 

 

 

 

 

If the speed change function is executed, "

 

New speed value" is stored.

 

 

 

 

 

Cd.14

 

 

 

 

 

(For details of the speed change function, refer to Section 12.5.1.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5 - 98

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Image 186
Mitsubishi Electronics QD75P, QD75D Axis warning No When, Stores 0 under the speed control, New speed value is stored