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CHAPTER 11 CONTROL SUB FUNCTIONS
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 Description Reference
Functions to
compensate
control
Electronic gear function
This function controls moving distance and speed by multiplying
command pulse output of the QD73A1.
Page 209,
Section 11.1
Functions to
limit control
Speed limit function
This function limits command speed to the value set in
" Speed limit value".
Page 211,
Section 11.2
Stroke limit function
This function controls operation not to execute positioning when
a command that moves the workpiece outside the specified
stroke limit range is given.
Page 213,
Section 11.3
Upper limit switch (FLS)/lower limit
switch (RLS) function
This function decelerates and stops operation according to the
detection on limit switches placed at the upper and lower stroke
limits.
Page 215,
Section 11.4
Functions to
change control
details
Current value change function
This function changes the value set in " Current feed
value" to a specified value.
Page 217,
Section 11.5
Speed change function
This function changes speed during major positioning control or
JOG operation.
Page 218,
Section 11.6
Deviation counter clear function
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.
Page 220,
Section 11.7
Other
functions
In-position function
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.
Page 221,
Section 11.8
Accumulated pulse error detection
function
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.
Page 223,
Section 11.9
Pr.5
Md.1