MITSUBISHI ELECTRIC Mitsubishi Programmable Logic Controller QD75D - Manual (Page 132)

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MELSEC-Q
5 DATA USED FOR POSITIONING CONTROL
Pr.42 External command function selection
Select a command with which the external command signal should be associated.
0: External positioning start
The external command signal input is used to start a positioning
operation.
1: External speed change request
The external command signal input is used to change the speed
in the current positioning operation. The new speed should be set
in the " Cd.14 Speed change value"
2: Speed-position, position-speed switching request
The external command signal input is used to switch from the
speed control to the position control while in the speed-position
switching control mode, or from the position control to the speed
control while in the position-speed switching control mode.
To enable the speed-position switching control, set the
" Cd.24 Speed-position switching enable flag" to "1".
To enable the position-speed switching control, set the
" Cd.26 Position-speed switching enable flag" to "1".
3: Skip request
The external command signal input is used skip the current
positioning operation.
POINT
To enable the external command signal, set the " Cd.8 External command enable"
to "1".