Outline Of Sub Functions - Mitsubishi QD75P1N User Manual

12 CONTROL SUB FUNCTIONS

12.1 Outline of sub functions

12.1.1 Outline of sub functions
Sub function
OPR retry function
Sub functions
specifically for
machine OPR
OP shift function
Backlash compensation
function
Electronic gear function
Functions for
compensating
the control
Near pass function
Output timing selection of
near pass control
Speed limit function
Functions to
Torque limit function
limit the control
Software stroke limit
function
Hardware stroke limit
function
Speed change function
Functions to
change the
Override function
control details
Acceleration/deceleration
time change function
Torque change function
Target position change
function
"Sub functions" are functions that compensate, limit, add functions, etc., to the control
when the main functions are executed. These sub functions are executed by
parameter settings, commands from GX Configurator-QP, sub function sequence
programs, etc.
The following table shows the types of sub functions available.
This function retries the machine OPR with the upper/lower limit switches
during machine OPR. This allows machine OPR to be carried out even if the
axis is not returned to before the near-point dog with JOG operation, etc.
After returning to the machine OP, this function offsets the position by the
designated distance from the machine OP position and sets that position as
the OP address.
This function compensates the mechanical backlash. Feed pulses equivalent
to the set backlash amount are output each time the movement direction
changes.
By setting the movement amount per pulse, this function can freely change
the machine movement amount per commanded pulse.
A flexible positioning system that matches the machine system can be
structured with this function.
This function suppresses the machine vibration when the positioning data is
1
switched during continuous path control in the interpolation control.
This function allows the user to select the timing to output the difference
( ) between the actual and the set positioning end addresses in
continuous path control, in which the difference (
execution of the next positioning data.
If the command speed exceeds "
this function limits the commanded speed to within the "
value" setting range.
If the torque generated by the servomotor exceeds "
2 setting value" during control, this function limits the generated torque to
within the "
If a command outside of the upper/lower limit stroke limit setting range, set in
the parameters, is issued, this function will not execute positioning for that
command.
This function carries out deceleration stop with the limit switch connected to
the QD75 external device connector.
This function changes the speed during positioning.
Set the changed speed in the speed change buffer memory (
speed value), and change the speed with the speed change request
( Cd.15
This function changes the speed within a percentage of 1 to 300% during
positioning. This is executed using "
override".
This function changes the acceleration/deceleration time during speed
change. (function added to the speed change function and override function)
This function changes the "torque limit value" during control.
This function changes the target position during the execution of positioning.
At the same time, this also can change the speed.
Pr.17 Torque limit setting value" setting range.
Speed change request).
12 - 2
MELSEC-Q
Details
) is output during the
Speed limit value" during control,
Pr.8
Pr.8
Pr.17
Cd.13 Positioning operation speed
Speed limit
Torque limit
Cd.14 New