beautypg.com

Melsec-q, 5 data used for positioning control – MITSUBISHI ELECTRIC Mitsubishi Programmable Logic Controller QD75D User Manual

Page 188

background image

5 - 100

MELSEC-Q

5 DATA USED FOR POSITIONING CONTROL

Storage item

Storage details

Md.28

Axis feedrate

The speed which is actually output as a command at that time in each axis is
stored. (May be different from the actual motor speed)
"0" is stored when the axis is at a stop.

Update timing: 56.8ms

Md.29

Speed-position switching

control positioning amount

The value set as the movement amount for the position control to end after
changing to position control with the speed-position switching control (INC mode)
is stored.

Md.30

External input/output signal

The ON/OFF state of the external input/output signal is stored.
The following items are stored.

Upper limit signal

Lower limit signal

Drive unit READY signal

Stop signal

External command signal

Zero signal

Near-point signal

Deviation counter clear signal

Update timing: 56.8ms