Mitsubishi MELSEC-F FX-TRN-BEG-E User Manual page 99

FX-TRN-BEG-E
Type Device No.
Output
6.4.3 Control Objective
Distinguish between defective parts and good parts by their signals and distribute them
accordingly.
6.4.4 Control Specifications
Overall control
1) When [PB1] (X20) on the operation panel is pressed, Supply command (Y0) for the hopper
is turned ON.
When [PB1] (X20) is released, Supply command (Y0) is turned OFF.
When Supply command (Y0) is turned ON, the hopper supplies a part.
2) When [SW1] (X24) on the operation panel is turned ON, the conveyors move forward.
When [SW1] (X24) is turned OFF, the conveyors stop.
Control of drill
1) When the sensor for Part under drill (X1) in the drill is turned ON, the conveyor stops.
2) When Start drilling (Y2) is turned ON, the drilling starts.
Start drilling (Y2) is turned OFF when Drilling (X0) is set ON.
3) When Start drilling (Y2) is turned ON, either Drilled correctly (X2) or Drilled wrong (X3)
is set ON after the drill machine has operated for one complete cycle.
(The drill cannot be stopped in the middle of an operation.)
In this simulation, one out of three parts is to be a defective part.
(When multiple holes are drilled on a part, it is also a defective part.)
4) When a defective part is detected by Detect part (X10) in the pusher, the conveyor stops
and the pusher pushes it onto the 'Defective' tray.
Note: When the actuating command for the pusher is set ON, it extends completely.
When the actuating command is set OFF, the pusher retracts completely.
5) A good part is carried on the conveyor to the 'OK' tray located at the right end.
Device name
Y0 Supply command
Y1 Conveyor forward
Y2 Start drilling
Y3 Conveyor forward
Y5 Pusher
Operation
One part is supplied when Y0 is ON: Large metal cube.
Conveyor moves forward when Y1 is ON.
Starts drilling when Y2 is ON (A process cycle that
cannot be stopped partway).
Conveyor moves forward when Y3 is ON.
Extends when Y5 is ON and retracts when Y5 is OFF.
The pusher cannot be stopped in the mid stroke.
F: Advanced Challenge 6
B-71