Huanyang inverter

This topic has 10 replies, 5 voices, and was last updated 26 January 2014 at 11:18 by John Rudd.

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25 January 2014 at 20:44 #23101
Robonthemoor
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@robonthemoor
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25 January 2014 at 20:44 #141672
Robonthemoor
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@robonthemoor
I have a 4kw huanyang inverter on my lathe, I want to wire into it the foot stop, I have it mounted on my lathe so I can use the on off fwd rev and speed control all from the front of the inverter. Can't seam to work out which connection to use from the manual? The foot switch in open circuited until the foot brake is depressed.

rob
25 January 2014 at 20:51 #141675
John Rudd
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@johnrudd16576
The foot switch needing to make to STOP the machine is the not the best way…….

if a wire were to become detached , then your E stop is ineffective……..

cant you rewire it for a nc contact?

Edited By John Rudd on 25/01/2014 20:52:32
25 January 2014 at 20:58 #141678
Robonthemoor
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@robonthemoor
Tel me more john!

Rob
25 January 2014 at 21:24 #141680
John Rudd
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@johnrudd16576
Posted by Robonthemoor on 25/01/2014 20:58:13:

Tel me more john!

Rob

What do you need to know?

how electrical savvy are you?

I have the same inverter on my mill (albeit it's the 1.5kw version) but I retained the orig nvr switch to provide an E stop….

Basically, that removes all power from the machine, the motor stops dead….

What you propose , using your foot switch via the inverter isn't good practice , the rundown of the motor would be controlled by the inverter…..
25 January 2014 at 21:42 #141682
Robonthemoor
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@robonthemoor
Savvy! So so, so you are saying run the power down to the motor through the foot switch via a relay!
26 January 2014 at 00:35 #141701
Tony Ray
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@tonyray65007
Rob,

No I don't think so. When you operate your foot switch it should cut the power to the inverter not the motor; putting any device that breaks the connection between the motor and inverter is likely to kill the inverter.
26 January 2014 at 07:05 #141708
Robonthemoor
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@robonthemoor
That can produce a power serge to the inverter as it is under load, or so I'm told" damaging it. It as a power DC brake in the inverter. I was hoping to use that. But I see where you are coming from, things can go wrong with wiring.

Rob
26 January 2014 at 10:18 #141716
john fletcher 1
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@johnfletcher1
Do NOT in any way interupt the electric supply between your inverter and the motor, as Rob above has said. Why would you want to use a foot switch ? If you do need a foot switch then you should control the INPUT to your inverter via a contactor and wire the foot switch in seried with the contactor stop. Ted
26 January 2014 at 10:32 #141718
Rick Kirkland 1
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@rickkirkland1
In support of the previous several replies to this thread. From an electrician who has been doing inverters as a fair part of my work for the past ten years. NEVER interrupt the contact between the output and the motor, unless you wish to buy a new inverter after you do.

Rick.
26 January 2014 at 11:18 #141732
John Rudd
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@johnrudd16576
Posted by Robonthemoor on 25/01/2014 20:44:03:

The foot switch in open circuited until the foot brake is depressed.

rob

And that's the initial issue…..normally the stop circuit is normally closed until activated…….To re-iterate what I said earlier you really need a switch with n/c contacts …….the simpler the method of integrating the E stop the safer it will be as there's less chance of failure…..
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