Mitsubishi MELSEC-F FX-TRN-BEG-E - Page 103

FX-TRN-BEG-E F: Advanced Challenge 6
B-75
6.6.3 Control Objective
Carry parts to three positions using the lift.
6.6.4 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.
3) After the sensor X10, X12 or X14 at the left of conveyor has detected a part, the
corresponding conveyor is set ON and carries it to the tray at the right end.
The conveyor stops 3 seconds after a part has passed the sensor X11, X13 or X15 at the
right of conveyor.
4) Large, medium and small parts on the conveyor are sorted by the input of sensors
Upper
(X0),
Middle
(X1) and
Lower
(X2).
Lift Control
1) When the sensor for
Part on lift
(X3) in the lift is turned ON, a part is carried to either of the
following conveyors according to its size.
- Large part : Upper conveyor
- Medium part : Medium conveyor
- Small part : Lower conveyor
2)
Lift up command
(Y2) and
Lift down command
(Y3) are controlled according to the lift
position detected by the following sensors.
- Upper : X6
- Meddle: X5
-Lower: X4
3) When a part is transferred from the lift to the conveyor,
Lift rotation command
(Y4) is set
ON.
4) After a part is transferred, the lift is to return to the initial position and stand by.
Output
Y0 Supply command
One part is supplied when Y0 is ON: Metal cylinder
repeats in order S, L, M, L, M, S.
Y1 Conveyor forward Conveyor moves forward when Y1 is ON.
Y2 Lift up command Lift moves up when Y2 is ON. Lift stops when Y2 is OFF.
Y3 Lift down command
Lift moves down when Y3 is ON. Lift stops when Y3 is OFF.
Y4 Lift rotation command
Lift rotates to transfer part to conveyor when Y4 is ON.
Lifts rotates back to original position when Y4 is OFF.
Y5
Lower conveyor forward Conveyor moves forward when Y5 is ON.
Y6
Middle conveyor forward Conveyor moves forward when Y6 is ON.
Y7
Upper conveyor forward Conveyor moves forward when Y7 is ON.
Type Device No. Device name Operation