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Start Sequence of Motors

The document provides instructions for an exercise to create a motor start sequence using control interlocks. Students are asked to: 1) Complete the current flow diagram showing the control circuit. 2) Draw the power circuit. 3) Draw the wiring diagram of the control circuit. 4) Adapt the wiring diagram to the work paper. 5) Wire the circuit on the exercise board using the wiring diagram. The control circuit diagram shows that motor M2 can only operate if motor M1 is already running, and M1 must be switched off before M2.

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Samuel Adamu
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1K views4 pages

Start Sequence of Motors

The document provides instructions for an exercise to create a motor start sequence using control interlocks. Students are asked to: 1) Complete the current flow diagram showing the control circuit. 2) Draw the power circuit. 3) Draw the wiring diagram of the control circuit. 4) Adapt the wiring diagram to the work paper. 5) Wire the circuit on the exercise board using the wiring diagram. The control circuit diagram shows that motor M2 can only operate if motor M1 is already running, and M1 must be switched off before M2.

Uploaded by

Samuel Adamu
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Industrial

Adama University Workshop Practice Installation


Electrical Engineering Department Exercise 04: Transformation of
and current flow diagrams into wiring 1
Further Training Institute diagrams – start sequence of motors

Frequently it is required that motors shall start and stop in a certain sequence. This can be
achieved by interlock of the control. In the represented circuit (in coherent representation)
motor M 2 can be operated only if motor M1 is already running. For the stop M 2 has to be
switched off before M1 can be switched off.

Compiled by Klaus Peter, CIM-IE, Adama University, 2009-2010 1


Industrial
Adama University Workshop Practice Installation
Electrical Engineering Department Exercise 04: Transformation of
and current flow diagrams into wiring 2
Further Training Institute diagrams – start sequence of motors

There is to do:

1. Draw the current flow diagram of the control circuit in detached representation. There is
only to complete the present drawing.

2. Draw the power circuit.

3. Draw the wiring diagram of the control circuit.

4. Adapt the wiring diagram to the given work paper.

5. Wire the circuit on the exercise board by using the wiring diagram.

Current flow diagram:

L1

- K1 - K2

Compiled by Klaus Peter, CIM-IE, Adama University, 2009-2010 2


Industrial
Adama University Workshop Practice Installation
Electrical Engineering Department Exercise 04: Transformation of
and current flow diagrams into wiring 3
Further Training Institute diagrams – start sequence of motors

Power circuit:

Compiled by Klaus Peter, CIM-IE, Adama University, 2009-2010 3


Industrial
Adama University Workshop Practice Installation
Electrical Engineering Department Exercise 04: Transformation of
and current flow diagrams into wiring 4
Further Training Institute diagrams – start sequence of motors

Wiring diagram:

-X1

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

-X1

21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

Compiled by Klaus Peter, CIM-IE, Adama University, 2009-2010 4

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