Uttakskonkurranse NM i Automasjon 2014 – Strømmen VGS

Uttakskonkurranse NM i Automasjon 2014

Project 1:

Improving a production line with additional functionality.

Weighting (Points out of total) 25/100

Maximum time 45 minutes

Task:

Connect a relay to complete the functionality of a pre-assembled and pre-programmed station. The relay will be used to switch direction of the conveyor when the relay is activated from DO3. Whenever the conveyor moves to the right hand side, the lamp will show a green signal. Whenever the conveyor moves to the left hand side, the lamp will show a yellow signal. This has to be achieved with wiring only. No additional programming will be done.

A current limiter is included in the circuit to reduce the current spike when the conveyor starts. This component must be included with the right function to achieve full points on this task.

Documentation:

Wiring of the I/O-terminal

Input / Comment: / Output / Comment:
DI0 / Workpiece at Belt Input / DO0 / Move Separator
DI1 / Workpiece at Separator / DO1 / Activate Belt
DI2 / Workpiece at Belt End / DO2 / Retract Stopper
DI3 / Separator in Basic Position / DO3 / Turn Belt Direction
DI4 / Orientation at Separator / DO4 / Not used
DI5 / Workpiece at Stopper / DO5 / Not used

Schematics Relay

Current limiter with connection example

Function description

This is a description of the required function for the production line. Points will be awarded according to how much of the function that is achieved.

Initial position:

Conveyor off

Stopper extended

Separator in Stop - position / cylinder retracted

Lights off

Initial position of the TO-module:

Gripper open

Gripper up

No workpieces at the station

Step / Description / Achieved / Points
Lamp start on
Press start button
Lamp start off
A: / LQ1 on if station is in Initial Position
Place workpiece on belt input
Belt on and LQ1 off
Workpiece moves to Separator / 2
Check orientation
If workpiece is facing opening up continue with B:
If workpiece is facing opening down continue with C:
B: / Workpiece moves to end of conveyor / 2
Belt off, lamp LQ2 on / 1
Remove workpiece
LQ2 off
Continue with A:
C: / Workpiece moves to stopper / 1
Arm moves down
Grips workpiece
Arm moves up
Turn workpiece
Place workpiece on belt / 1
Belt switches direction / 3
Move workpiece to start of conveyor / 1
Belt off, LQ2 on
Remove workpiece
Continue with A:
Green signal light correct / 3
Yellow signal light correct / 3
Points / Points Max
Total Points for Function / 17

Professional Practice

PP No. / Description / Points deducted / Points per PP
-0,8
-0,8
-0,8
-0,8
-0,8
PP Points Total: / 4

Time Points

Time point evaluation (Only granted if maximum points for function and at least 2,4 points for PP is achieved) / Points / Maximum time points
Points for time = (max. time – actual time) x max. points /(max. time – min. time) = (45.0- ...... ) x 4 Points / (45.0 - ...... ) / 4

Total Evaluation Project 1

Description / Points / Points Max
Function / 17
Professional Practice / 4
Time Points / 4
Total Points / 25