Design Control And Power Circuits

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Basic design, if you need ask the question I doubt you're competent to do the work!

Pretty poor design to have yellow, amber and orange indicators on the same panel. If you really meant three different colours, it would give very poor discrimination.

Imagine a 'phone conversation:

OP "Hi, Jim, I pressed 'Jog Forward' and the yellow lamp was on, but nothing moved",

ENG "Yellow?"

OP "Could've been amber - it was kinda orangey".

Also, "the green button comes on" - ?

Suggest you start by clarifying the specification.

benson muloza; it took me less than 60 minutes to finish this project, i added a lamp test button, used red,yellow, green, blue & white indicator lamps perry.

This is a classic example of one of the things that baffles me today. Benson Muloza cannot solve this problem himself. But Benson Muloza thinks that we can solve this problem for free. Now I believe that I'm a generous guy but I do have some pride. I'll help Benson to solve this problem if he explains what he doesn't understand. I must be paid to solve the whole problem for somebody though.

pass, QUESTION TWO please!

Some blokes just aren't helpful.

In the run mode, latch circuit.

In the Jog mode bypass the latch.

In the ON mode, lamp is fed.

In the No Power mode, don't feed.

In Stop mode, in series with latch circuit, break the supply.

Make sure each latching circuit doesn't latch the other circuit.

Don't mix NO contact and NC contact with the Start and Stop buttons. Jog buttons as per normal.

Now, that wasn't hard at all.

Cheers

Mark N

You really should do your own home work, or hire somebody to do the design.

PS you know what they say about free advise.

If u hv knowledge of power and control cct design,then you can follow this as a guide.

a)latch/selfhold/retain your first forward push button.supply d amber light frm contactor NO output.

b)do not latch/selfhold/retain your second forward push button.amber light same as (a)

c)latch/selfhold/retain your reverse button.supply green lamp frm NO output of reverse contactor.

d)do not latch/selfhold/retain reverse jog.amber light must not come on,only green light as in (c)

e)supply red lamp frm output of NC of forward and reverse contactors respectively.

f)supply orange lamp directly frm supply power thru the control power single pole breaker.

g)ensure that the supply to your forward and reverse contactor coils pass thru 96 terminal of your overload relay.ensure power is linked frm 95 terminal to 97 terminal and frm the 98 terminal of the overload,the yellow light is supplied.

h)ensure that the stop push button comes before any of the forward and reverse buttons in the control cct.

Benson owes you one for taking the time to put it all down like that Patrick, GA.