Parker Products COMPAX-M /-S (L) - Manual (Page 226)

Application examples COMPAX-M/S
Overview
226
11. Application examples
11.1.1 Overview
External data record selection....................................................................................................227
Application:
One of eight various workpieces should be made available at a data collection station. The number of the
desired workpiece is set using a BCD selector switch. The transportation process is then triggered by a
starting pulse.
Mark-referenced positioning.......................................................................................................229
Application:
Pieces with lengths of between 100 mm and 500 mm should be cut from a plate roller. The cut-off
positions are specified by marks on the plate. If two marks are separated by more than 500 mm, the plate
should be pulled back to the last cut-off position.
Speed step profiling / comparator switching points ................................................................231
Application:
A bore spindle should be guided to the surface of the workpiece using a rapid feed movement. The bore
is then bored to a defined depth using a considerably longer feed. When reversing the bore spindle, the
unit should travel at a slow velocity while the drill is still in the bore. The remaining travel to the idle
position is performed at a rapid speed.
The bore spindle should be switched on just before the boring process commences and should be
switched off immediately after it has been removed from the bore. Movement of the conveyor belt should
be blocked for as long as there is a risk of collision between the workpiece and drill.
SPEED SYNC................................................................................................................................233
Application:
Cartons should be transferred from one conveyor belt (conveyor belt A), a belt operating at a very
variable belt speed, to another conveyor belt (conveyor belt C), a belt which has a constant belt speed.
This task should be performed using a transfer belt (conveyor belt B) installed between the two other
belts. This belt receives cartons from conveyor belt A and, when triggered by a pulse, passes them on to
conveyor belt B. In addition to this, when conveyor belt B is assigned, conveyor belt A should be blocked.
Conveyor belt B is controlled by COMPAX.
Speed control mode ....................................................................................................................234
Application:
A centrifuge for manual operation should be operated by an operating mode switch. The centrifugal
process should either be run at a permanently set speed or the test tubes should be removed, one after
another, through the removal aperture. The shutter on the removal aperture must only be able to open
when the centrifuge is at a standstill.
Fast start.......................................................................................................................................236
Application:
Material should be fed to an extender stamping machine which operates at a maximum speed of 150
rpm. The material may only be supplied if the stamping tool is open and if the workpiece (already
stamped) has been thrown up. The material supply should be released or blocked via a switch.
Implementing a torque converters .............................................................................................237
2 options are available for implementing a torque converters.