Qd77Gf Sub Functions - Mitsubishi Electric MELSEC-Q Series User Manual

3.2.3 QD77GF sub functions

Sub function
HPR retry function
Functions
[RJ010 mode]
characteristic
to machine
HPR
HP shift function
[RJ010 mode]
Backlash compensation
function
Functions that
compensate Electronic gear function
control
Near pass function
Speed limit function
Torque limit function
Functions that
limit control
Software stroke limit
function
Hardware stroke limit
function
Forced stop function
Speed change function
Functions that Override function
change control
details
Acceleration/deceleration
time change function
Torque change function
Target position change
function
The outline of the functions that assist positioning control using the Simple Motion
module is described below. (Refer to "Section 2" for details on each function.)
This function retries the machine HPR with the upper/lower limit
switches during HPR. This allows machine HPR to be carried
out even if the axis is not returned to before the proximity dog
with JOG operation, etc.
After returning to the machine HP, this function compensates the
position by the designated distance from the machine HP and
sets that position as the HP address.
This function compensates the mechanical backlash amount.
Feed commands 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.
When the movement amount per pulse is set, a flexible
positioning system that matches the machine system can be
structured.
This function suppresses the machine vibration when the
1 positioning data is switched during continuous path control in the
interpolation control.
If the command speed exceeds "[Pr.8] Speed limit value" during
control, this function limits the commanded speed to within the
"[Pr.8] Speed limit value" setting range.
If the torque generated by the servomotor exceeds "[Pr.17]
Torque limit setting value" during control, this function limits the
generated torque to within the "[Pr.17] Torque limit setting value"
setting range.
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 hardware
stroke limit switch.
This function stops all axes of the servo amplifier with the forced
stop signal.
This function changes the speed during positioning.
Set the new speed in the speed change buffer memory ([Cd.14]
New 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 "[Cd.13]
Positioning operation speed override".
This function changes the acceleration/deceleration time during
speed change. (Functions 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 positioning.
Position and speed can be changed simultaneously.
Chapter 3 Specifications and Functions
Details
3 - 9
Reference
section
13.2.1
13.2.2
13.3.1
13.3.2
13.3.3
13.4.1
13.4.2
13.4.3
13.4.4
13.4.5
13.5.1
13.5.2
13.5.3
13.5.4
13.5.5