Design the relay ladder logic

[Hani Abdullah]

You need to show us your work. What have you done?

I have done that All relays in parallel (with different switching levels) and heaters in series with each relay. Is that correct?

 

[shooter]

yes hani please show us more?
just what you did, and we will guide you better.

 

[Hani Abdullah]

All relays in parallel (with different switching levels) and heaters in series with each relay.
Is that correct?

 

[Hani Abdullah]

I am stuck at where to and how to start actually i am new at this. So please help me

 

[Hani Abdullah]

Is there any programing included or i just have to design the diagram?

 

[JeffKiper]

Do you have this on paper where we can look at it?

 

[Mickey]

I cant understand what you people are saying

Now we are on a level playing field.

 

[Lancie1]

I have done that. All relays in parallel (with different switching levels) and heaters in series with each relay. Is that correct?

No, you are far from the correct relay-logic schematic diagram. The relays should not be in parallel unless you need two to provide more poles than you can get on one relay. The heaters should NOT be in series with each relay.

Design the relay ladder logic for this Control.

The heaters should be shown on a separate power wiring diagram, not on the control diagram. You were not required to draw the power wiring, only the heater controls.

It should look similar to the attached PDF file. You will have to decide if you can purchase 3-pole relays in your area. If not, use two 2-pole relays in parallel in the places of Relay R1 and Relay R4 (coils in parallel for new Relays R1a, R1b, and R4a, R4b). Also, you need to find out how many amps each heater needs, and size the 3 Contactors for that amp rating. Amps = Kilowatt heater rating divided by voltage (240 you said).

 

[osmanmomin]

1.) New Project?
2.) Modification Project?
3.) Using PLC Controlling or Temperature Controller ?
4.) Type/Qty Temperature Sensor?

 

[krakenfan69]

Lancie,
What program did you use to draw that up in? I like it.

Kraken Fan #69

 

[alan_505]

Kraken,

you can use TinyCad it is free and would make that diagram, but it does not look like it was made with TinyCad.

Alan

 

[Hani Abdullah]

I have drawn that. Is that correct?

 

[Hani Abdullah]

what changing should be made in it in order to complete my question?

 

[osmanmomin]

1.) this is are process requirement ??

2.) this is are cost saving project ??



the problem will arise,

 

[Hani Abdullah]

How about this 1? What changes are required?