Mitsubishi Electric MELSEC-L LD75P User Manual page 546

(2) Control precautions
(a) Control is carried out as follows at the speed change during continuous path
control.
• When no speed designation (current speed) is provided in the next positioning data [a], the next
positioning data is controlled at the "[Cd.14] New speed value".
• When a speed designation is provided in the next positioning data [b], the next positioning data is
controlled at its command speed ([Da.8]).
Cd. 14 New speed value
Designated speed in P2
Designated speed in P1
(b) When changing the speed during continuous path control, the speed change will be
ignored if there is not enough distance remaining to carry out the change.
(c) When the speed is changed by setting "[Cd.14] New speed value" to "0", the
operation is carried out as follows.
When "[Cd.15] Speed change request" is turned ON, the speed change 0 flag ([Md.31] Status: b10) turns
ON. (During interpolation control, the speed change 0 flag on the reference axis side turns ON.)
The axis stops, but "[Md.26] Axis operation status" does not change, and the BUSY signal remains ON. (If a
stop signal is input, the BUSY signal will turn OFF, and "[Md.26] Axis operation status" will change to
"Stopped".)
In this case, setting the "[Cd.14] New speed value" to a value besides "0" will turn OFF the speed change 0
flag (Md.31 Status: b10), and enable continued operation.
Positioning start
signal
[Y10,Y11,Y12,Y13]
BUSY signal
[XC,XD,XE,XF]
New speed value
Cd.14
Cd.15 Speed change
request
Positioning operation
Speed change 0 flag
status: b10
Md.31
544
Positioning control
P1
Speed change
command
ON
OFF
ON
OFF
0
ON
OFF
ON
OFF
Next control
P2
[a] When no speed designation
(current speed) is provided.
[b] When a speed designation
is provided.
1000