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PostPosted: Thu Oct 03, 2013 8:24 am 
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Hi there,
I recently build up my own rework station based on the schematic attached to this post.
Image

Problem is, I'm having a little problem understanding how to wire pins 13,14 and 15, I'm not sure what kind and how many buttons should I use or how what they do exactly. My thinking was that I need an on/off regular button and one push button but how to wire them? I also read some manual about the pc900 but my head didn't got any clearer.

Can someone enlight me here a little bit, pelase?


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PostPosted: Thu Oct 03, 2013 12:21 pm 
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Set up: Modded achi ir6500, aoyue 968a++ ,t8280 plate
Hi there
The way i read diagram is you need two switches one for on and one for off , (not switches that you can keep pressing on/off). Have tried to see if anything works yet . your pre heat switch wiring dont look right to me? Dose your rex 100 have ssr output or have you modded it.


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PostPosted: Thu Oct 03, 2013 12:32 pm 
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Set up: DIY Hot Air Top Heater and Nozzle. Modded T8280 Preheater
This thread should be in the DIY section.

This schematic looks like an old one Celsius made. Has a couple errors in it. The schematic for the pins 13, 14, and 15 are right on the
PC410 controller itself. The momentary button for start would only be for to enact an Omron timer, not hooked directly to the PC410.
The start switch needs to be an on/off switch, not momentary like the diagram on the 410 shows. The stop button is a momentary
push-button switch with normally open contacts. I used a rocker switch for the start switch on my DIY top heater with PC410. So, use
an on/off switch between pins 14 and 15 for start switch and use a momentary push-button switch between pins 13 and 15 for stop.

Image

The other mistake in that schematic is the RS232 communication wiring. drawing shows TXD from PC410 going to TXD pin of RS232
connector. That is incorrect. TXD of controller goes to RXD of RS232 connector, RXD to TXD, and GRD to GRD. Here is a good cheap
RS232 connector to use for DIY station.
http://www.ebay.com/itm/DB9-DE9-D-SUB-F ... 3f283d60e6

Here is a schematic I made for wiring RS232 to PC410.

Image


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PostPosted: Thu Oct 03, 2013 2:13 pm 
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The Rex C100 has been moded.
I will take note about the RS232 modification.
I'm curios what kind of push-button you refer too? The one that old radios had where you push it down and remains there until pushed again and release?


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PostPosted: Thu Oct 03, 2013 2:40 pm 
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Set up: DIY Hot Air Top Heater and Nozzle. Modded T8280 Preheater
Scootie wrote:
The Rex C100 has been moded.
I will take note about the RS232 modification.
I'm curios what kind of push-button you refer too? The one that old radios had where you push it down and remains there until pushed again and release?


NO, I am talking about a "momentary" button switch. Contacts close when you press the button. Contacts open again when you release the button.
What you mentioned is called a "latching" push button switch.


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PostPosted: Thu Oct 03, 2013 3:12 pm 
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Set up: Puhui T8280 + Aoyue 968A+
So the procedure goes like this:
1. start pc410,
2. turn on start/stop switch and if something happens
2a. I press the push-button which sends only the STOP signal to the controller otherwise
3. the pc410 will stop by itself after it run it's program,
4. turn off start/stop button.


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PostPosted: Thu Oct 03, 2013 5:13 pm 
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Set up: DIY Hot Air Top Heater and Nozzle. Modded T8280 Preheater
The start switch will actually be a start/pause switch, not a start/stop switch. You can start profile in 3 ways.
1.) After you have power supplied to PC410, you turn start/pause switch "on". Whatever pattern (profile) you have selected will start
and run until it ends.
2.) If the start switch is already in the "on" position before you turn on the main power, then 410 will be in standby and can start
profile by pressing the "Run/Prog" button on the PC410 itself.
3.) Start profile with the software. Start switch must be in the "on" position already for this to start profile, just like method 2.

While profile is running, you can turn start switch off to pause the profile. Will keep heating at whatever SV on display when you paused.
Turn start switch back on to resume profile. Pushing "stop" button will just end profile and not able to resume again.


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PostPosted: Thu Oct 03, 2013 8:54 pm 
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Thanks, I will see what kind of buttons can find in the local store. :)


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PostPosted: Fri Oct 04, 2013 8:35 am 
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I went to the store and found no such start/pause button. :(
So for now I will go with a start/stop and push-button scenario and where that gets me.


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PostPosted: Fri Oct 04, 2013 4:23 pm 
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Set up: DIY Hot Air Top Heater and Nozzle. Modded T8280 Preheater
Scootie wrote:
I went to the store and found no such start/pause button. :(
So for now I will go with a start/stop and push-button scenario and where that gets me.


It's just an on/off switch you need of any kind. Toggle, rocker, etc. Like this one.
http://www.google.com/imgres?imgurl=htt ... CHMQ9QEwCw


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