Mitsubishi Electric MELSEC-L LD75P User Manual page 511

Sub function
Step function
Skip function
M code output function
Teaching function
Other Functions
Command in-position function
Acceleration/deceleration processing
function
Pre-reading start function
Deceleration start flag function
Stop command processing for
deceleration stop function
*1 The near pass function is validated only when the machine of the standard specification carries out the position control
with the continuous path control mode. It cannot be invalidated with parameters.
*2 To carry out "torque limit", the "D/A conversion module" and a "drive unit capable of the torque limit command with an
analog voltage" must be prepared.
*3 An I/O module (or general-purpose I/O function of LCPU) with arbitrary number of points and "the drive unit capable of
configuring an absolute position detection system, which is a Mitsubishi Electric General-Purpose AC Servo and has an
absolute position detection function (absolute position data transference protocol) equivalent to that of MR-J3-A," are
required to execute the "absolute position restoration function".
This function temporarily stops the operation to confirm the positioning operation during
debugging, etc.
The operation can be stopped at each "automatic deceleration" or "positioning data".
This function stops the positioning being executed (decelerates to a stop) when the skip signal is
input, and carries out the next positioning.
This function issues a sub work (clamp or drill stop, tool change, etc.) according to the code No.
(0 to 65535) set for each positioning data.
This function stores the address positioned with manual control into the positioning address
(Da.6 Positioning address/movement amount) having the designated positioning data No.
At each automatic deceleration, this function calculates the remaining distance for the LD75 to
reach the positioning stop position, and when the value is less than the set value, sets the
"command in-position flag" to 1.
When using another sub work before ending the control, use this function as a trigger for the sub
work.
This function adjusts the control acceleration/deceleration (acceleration/deceleration time and
curve).
This function shortens the virtual start time.
Function that turns ON the flag when the constant speed status or acceleration status switches to
the deceleration status during position control, whose operation pattern is "Positioning complete",
to make the stop timing known.
Function that selects a deceleration curve when a stop cause occurs during deceleration stop
processing to speed 0.
CHAPTER 12 CONTROL SUB FUNCTIONS
Details
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