> In manufacturing industry modernization high speed
development today, the production high efficiency and the product high
grade request causes some high accuracy electrical systems and the
high performance automatic control system arises at the historic
moment, simultaneously also causes the question which many ordinary
electricities control system solves with difficulty to change relative
simple somewhat, and increased the automatic control system stability
in the very great degree. The Mitsubishi electrical machinery
limited company at present promotes Q series PLC as well as Q series
movement controller Q172CPUN and Q173CPUN are specially aims at needs
the high accuracy electricity control the product. Under
actuates the servo to Q series PLC as well as Q series movement
controller system and Mitsubishi (MR-J2S- mouth B) as well as the
mechanism introduction as follows: Connecting shaft 压模equipment craft
Craft synopsis
This equipment is 压模produces the three axle servo
high speed high accuracy synchronization connecting shaft 压模unit
which the factory voluntarily develops. But according to
processes the different product and the corresponding craft as well as
the control precision need, this equipment is actual by 5 servo axes
and 1 frequency conversion main axle is composed. The middle 3
servo axis is the connecting shaft synchronization axis.
Separately has 1 servo around the middle three axle servo
synchronization connecting shaft 压模unit to put the material axis
and the servo receives the material control axis, separately uses in
the automatic control process to put the material movement and to
receive the material movement. 压模mold by frequency
conversion main axle direct drive, because 压模under the mold
presses in time the line of 压模processing movement, the material
which processes must static maintain in processes in the floor to be
able to guarantee the processing material the high accuracy and the
high stability. Therefore in the system production process, is
processed the material movement certainly is not continual; But
is off and on. On static stops after a high speed high accuracy
localization in is processed in the floor to wait for 压模the
movement. Then processes between the material although has the
tensity but very difficultly accurately to examine, this increased the
control difficulty. Thereupon put the material axis and the
servo around the three axle servo synchronization connecting shaft
压模unit's servo receives the material control axis separately to
add the position examination switch, used for fuzzily to control puts
the material and receives between the material the tensity, but has
not used the pressure transmitter to examine the pressure to carry on
the control tensity. Its system craft controls the charting like
chart 1:  Chart 1 the system craft controls the charting
Craft movement explanation
Like chart 1, when the overall system starts at first,
the frequency conversion main axle first is under the start order to
revolve, and responsibly gives the mold one and the mold two directly
provides the power actuation. 套轴 has connected a high speed
photoelectricity position examination switch in on the frequency
conversion main axle bearing, uses in to examine the frequency
conversion main axle to revolve the number of times, also said the
frequency conversion main axle every time revolves a revolution, the
high speed photoelectricity position examination switch produces a
high speed pulse signal to give Q-PLC. Q-PLC transmits it for
the movement controller. The movement controller uses this high
speed photoelectricity pulse signal to take synchronization one, two,
the three axle position synchronization control start signal.
Carries on the high speed synchronized localization control,
after the high speed synchronized localization controls completes.
Outputs a localization by the Q-PLC procedure controlled process
in to complete the signal, the localization completes the signal to
take mold one and mold two to 下压模the movement start signal,
after 压模the movement movement completes, mold one and mold two
selies-recovery. Waiting next cycle arrival.
Systems control partial starts at times foreword chart
The systems control partial starts foreword chart see
Figure 2 to show at times
 Chart 2 systems control partial
starts at times foreword chart
Puts the material axis to receive the material axis
control
Puts the material axis and receives the material axis to
use the speed control, puts the material axis to examine the thing
belt when examines a position, then start speed control, when puts the
material axis to examine the thing belt when examines two positions,
then stops the speed control. Receives the material axis also to
use the speed control, receives the material axis to examine the thing
belt when examines two positions, then start speed control, when puts
the material axis to examine the thing belt when examines a position,
then stops the speed control. Using such way may not consider
puts the material and receives the material axis the radius change.
System hardware disposition
This system has used Mitsubishi Corporation's Q series
PLC (Q02CPU) and the MOTION movement controller (Q172CPUN) takes the
overall system the electricity control section. Q02CPU mainly
uses in to coordinate entire control procedure the movement and the
management, the Q172CPUN movement controller takes the system the
movement control processor, the coordinated and the control overall
system movement localization control. The A970GOT-TBA-CH
man-machine contact surface mainly uses in the control data input and
the demonstration. Like chart 3 shows.  Chart 3 system hardware disposition chart
The servo amplifier has used Mitsubishi electrical
machinery MR-J2S-40B, this servo amplifier has the SSCNET high speed
serial main line communication synchronous function, the controller
and between the servo amplifier communication cycle time most length
is 0.888ms. Then may guarantee the overall system the high speed
response and the control precision.
Q series movement controller function
Q series movement controller uses the movement SFC
special-purpose programming software programming, like chart 4 shows.
This software uses the flow chart form programming. The
programming lies between the surface image, direct-viewing, is easy to
understand. Extremely suits the beginner to use. And its
function is formidable. Mainly divides into the solid pattern
and the empty pattern two kind of forms.  Chart 4 SFC special-purpose programming
software system disposition chart
Solid pattern
Under the solid pattern has provided 6 zero points
returns way:
Near-point DOG; Counting; Data establishment;
DOG support; Stopper stopping; Limit switch mixed
type.
Moreover also has various axes JOG operation function as well as
the many kinds of speed control function and the many kinds of
localizations control function under the solid pattern, and realizes
most more than 4 axes to insert makes up the control.
Empty pattern
Under the empty pattern has provided the many kinds of
transmissions module and the output module. Transmission module
has following four kinds:
Gear load module; Coupling load module; Speed change
machine load module; Change speed gear load module.
The output module has following four kinds:
Rolls the Jan output module; Ball bearing lead screw
output module; 回转?output module; Cam output
module.
May establish the empty mold electrical machinery under the
empty pattern to carry on the multiple spindle synchronization
control. It controls the charting like like chart 5 to show:
 Chart 5 the three axle synchronization empty pattern
machinery controls the charting
Chart 5 center V.1 electrical machinery is the
hypothesized electrical machinery. May carry on the speed
control and the localization control through the empty pattern formula
to it, thus realizes its 虚轴 on 3 electrical machinery high speed
high accuracy synchronization controls.
In in Q series movement controller SFC special-purpose
programming software programming process solid pattern and empty
pattern very easily by user cut. May nimbly the reality
multi-purpose plurality of controls.
Debugging and user feedback
After the customer finished the electrical equipment and
the mechanical device installment, does not have the wiring mistake
after the inspection the first on electricity, the servo electrical
machinery movement certainly is not very ideal, the individual
electrical machinery has the slight vibration. May use SETUP161E
to debug software to carry on the careful debugging. Increases
its filter function, enhances the servo electrical machinery the
response frequency. Guarantees the overall system to be high
speed, stably to move. | 