Wiring a chinese tool presetter.

Mike_Eitel
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04 May 2019 20:33 #132768 by Mike_Eitel

Replied by Mike_Eitel on topic Wiring a chinese tool presetter.

Hi
.......
Between your points 19x7-2 and 19x7-9
24VDC regardless whether the tool setter is depressed or happy.
......
BAD. You will never get a change on io. First there must be a change!!
Measure if 3a1-5 is on gnd level.

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andypugh
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06 May 2019 18:14 #132983 by andypugh

Replied by andypugh on topic Wiring a chinese tool presetter.

Do you have the same gauge as the original poster (Sliptonic?)
If so, then you need to power the sensor with 24V and then the yellow output wire will change state as the switch is pressed.

So, you need both the wiring you show (where the switch is yellow to ground) and the 24V + GND power supply for the sensor itself.

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RotarySMP
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06 May 2019 19:47 - 06 May 2019 19:59 #132994 by RotarySMP

Replied by RotarySMP on topic Wiring a chinese tool presetter.

Hello Andy,
no mine is a bit different. You can see it and its schematic here.
It seems to be two separate circuits for the two switches.
Mark

Last edit: 06 May 2019 19:59 by RotarySMP.

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andypugh
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07 May 2019 18:46 #133076 by andypugh

Replied by andypugh on topic Wiring a chinese tool presetter.

If it is just two physical switches then I think you would just wire the switches between 24V and a 7i76(?) input pin.

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RotarySMP
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07 May 2019 19:49 #133084 by RotarySMP

Replied by RotarySMP on topic Wiring a chinese tool presetter.

The instructions include a limitation on not more than 20mA current. Wouldn't shorting 24VDC directly though this switch to a 7i77 input pin exceed that current limit?

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andypugh
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07 May 2019 20:54 #133093 by andypugh

Replied by andypugh on topic Wiring a chinese tool presetter.

Digital inputs are high impedance. They have to be ur nothing could ever change their voltage level.

If you want to be sure, use a multimeter in current mode to connect an input to +24V. You should see a state-change in the input and a few mA of current.

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RotarySMP
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08 May 2019 06:34 #133110 by RotarySMP

Replied by RotarySMP on topic Wiring a chinese tool presetter.

Thanks for that desciption.

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MRx
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16 Jan 2021 08:23 - 16 Jan 2021 08:36 #195521 by MRx

Replied by MRx on topic Wiring a chinese tool presetter.

Just for the record, my tool is using a KAQY214S solid state mosfet inside. Now you can look up the detailed specs yourself, it's easy to disassemble the entire unit, there's not much technology inside

I think 2 components which look like a capacitor are just Fuses / PTC fuses maybe.

Last edit: 16 Jan 2021 08:36 by MRx.

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hoffb77
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03 Feb 2021 01:49 #197504 by hoffb77

Replied by hoffb77 on topic Wiring a chinese tool presetter.

This is the schematic on Amazon.

It has two switches. One is NO the other is NC.

The schematic that came with the setter is the same but a bit more descriptive concerning the contacts.

60v DC 100ma / 60v AC 100ma- 500mw max

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hoffb77
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03 Feb 2021 02:02 #197506 by hoffb77

Replied by hoffb77 on topic Wiring a chinese tool presetter.

Dont look at it to long.......

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Wiring a chinese tool presetter.

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