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EE 174 Industrial Electronics: Exercise 2: Cleaning of Workpieces

This document outlines an exercise to design a stepper sequencer control circuit to automatically clean workpieces. The circuit must: 1) Be able to be reset from automatic to manual mode via a pushbutton. 2) Allow the bath dwell time to be cancelled if another pushbutton is pressed, returning the dipping cylinder to its retracted position. 3) Terminate the draining time if a third pushbutton is pressed, returning the horizontal cylinder to its initial position. 4) Be tested and the equipment list completed.

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Matt Brian Capangpangan
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77 views2 pages

EE 174 Industrial Electronics: Exercise 2: Cleaning of Workpieces

This document outlines an exercise to design a stepper sequencer control circuit to automatically clean workpieces. The circuit must: 1) Be able to be reset from automatic to manual mode via a pushbutton. 2) Allow the bath dwell time to be cancelled if another pushbutton is pressed, returning the dipping cylinder to its retracted position. 3) Terminate the draining time if a third pushbutton is pressed, returning the horizontal cylinder to its initial position. 4) Be tested and the equipment list completed.

Uploaded by

Matt Brian Capangpangan
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as DOCX, PDF, TXT or read online on Scribd
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EE 174 Industrial Electronics

Exercise 2: Cleaning of workpieces


Training aims
To be able to design a stepper sequencer control with
the input commands AUTOMATIC/MANUAL, START
and RESET.
To be able to realize an OR function of the feedback
signals.
To be able to set time delays according to
specifications.
To familiarize yourself with circuits in order to cancel
time delays via signal input.
Problem definition
A cleaning bath is to be fed automatically. A wire cage with
material is to be moved above the bath via a double-acting
cylinder. A second double-acting cylinder is to lower the wire cage
into the cleaning bath, where it is to remain for an adjustable time
period, until it is raised again for draining. The draining time must
also be adjustable, after which the first cylinder is to return into
the initial position.
Parameters
It must be possible for the drives and sequencer to be reset
via a pushbutton 0S3, if a valve with selector switch 0S1 is
reset from AUTOMATIC to MANUAL.
The bath dwell time t1 is to be cancelled if pushbutton 0S4
is pressed and the dipping cylinder 2A1 is to move into the
retracted end position.

Actuation of a valve with pushbutton 0S5 is to terminate the


draining time t2 and the horizontal cylinder 1A1 is to return
into the initial position.

Project task
1. First of all, design a simplified ciruit diagram without
taking into account the parameters and time delay.
2. Assemble this circuit and check its functioning.
3. Carry out the circuit assembly.
4. Check the assembled circuit.
5. Complete the equipment list.

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