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MELSEC-Q
3   SPECIFICATIONS AND FUNCTIONS 
 
Sub function  Details 
Reference 
section 
Step 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". 
12.7.1 
Skip function 
This function stops (decelerates to a stop) the positioning being 
executed when the skip signal is input, and carries out the next 
positioning. 
12.7.2 
M code output function 
This function issues a command for a sub work (clamp or drill 
stop, tool change, etc.) corresponding to the M code No.  
(0 to 65535) that can be set for each positioning data. 
12.7.3 
Teaching function 
This function stores the address positioned with manual control 
into the positioning address having the designated positioning 
data No. (
Cd.39
). 
12.7.4 
Command in-position 
function 
At each automatic deceleration, this function calculates the 
remaining distance for the QD75 to reach the positioning stop 
position. When the value is less than the set value, the 
"command in-position flag" is set to "1". 
When using another auxiliary work before ending the control, 
use this function as a trigger for the sub work. 
12.7.5 
Acceleration/deceleration 
process function 
This function adjusts the control acceleration/deceleration. 
(acceleration/deceleration time and curve). 
12.7.6 
Continuous operation 
interrupt function 
This function interrupts continuous operation. When this 
request is accepted, the operation stops when the execution of 
the current positioning data is completed. 
6.5.4 
Pre-reading start function  This function shortens the virtual start time.  12.7.7 
Deceleration start flag 
function 
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. 
12.7.8 
Other functions 
Stop command processing 
for deceleration stop 
function  
Function that selects a deceleration curve when a stop cause 
occurs during deceleration stop processing to speed 0. 
12.7.9