Chapter 11 Control Sub Functions - Mitsubishi Electric MELSEC Q Series User Manual

CHAPTER 11
Functions referred to as "sub function" compensate or limit control, or add functions at the execution of major
positioning functions. Execute these sub functions by setting parameters or through a sequence program for them.
The following functions are referred to as "sub function".
Sub function
Functions to
compensate Electronic gear function
control
Speed limit function
Functions to
Stroke limit function
limit control
Upper limit switch (FLS)/lower limit
switch (RLS) function
Current value change function
Speed change function
Functions to
change control
details
Deviation counter clear function
In-position function
Other
functions
Accumulated pulse error detection
function
208
CONTROL SUB FUNCTIONS
This function controls moving distance and speed by multiplying
command pulse output of the QD73A1.
This function limits command speed to the value set in
" Speed limit value".
Pr.5
This function controls operation not to execute positioning when
a command that moves the workpiece outside the specified
stroke limit range is given.
This function decelerates and stops operation according to the
detection on limit switches placed at the upper and lower stroke
limits.
This function changes the value set in "
value" to a specified value.
This function changes speed during major positioning control or
JOG operation.
This function clears the accumulated pulses in the deviation
counter. When the servomotor power was turned off due to an
emergency stop during positioning, clearing the accumulated
pulses in the deviation counter prevents servomotor rotation at
power recovery.
This function turns on In-position signal (X16) while the
accumulated pulse amount in the deviation counter is within the
specified in-position range (1 to 20479pulse). In-position signal
(X16) can be used as the signal right before positioning
completion.
This function outputs an alert and immediately stops the
positioning when the accumulated pulses reached the amount
specified by the user before the pulses exceed the amount set
in "Accumulated pulse setting" in the switch setting and an
excessive error occurs.
Description
Current feed
Md.1
Reference
Page 209,
Section 11.1
Page 211,
Section 11.2
Page 213,
Section 11.3
Page 215,
Section 11.4
Page 217,
Section 11.5
Page 218,
Section 11.6
Page 220,
Section 11.7
Page 221,
Section 11.8
Page 223,
Section 11.9