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Post by Trip Rodriguez on Oct 24, 2016 5:11:19 GMT
(Edit: Deleted questions answered by RL contact)
Looking ahead, can anyone direct me to where I can find recommended settings for the Hitachi VFD's and the AMC1280USB to get me started? As of right now I'd have to dig through Stevant, GA-Dawg, Mhenson, etc. threads and find this in bits and pieces.
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Post by paulg100 on Oct 24, 2016 11:15:49 GMT
if one failed then it depends what angle the other 5 are at.
There is the potential that the other 5 could jam on the upper frame depending on clearance around joints etc if they are near limits and one motors rotates out of 180 arc. Or it could push your UV joints outside there range of movement depending on the angles of the rods. again hard to say without a cad model.
Installing limit switches is worthwhile but you can probably wait until everthing is up a run before worrying about it to much. It might mean re wiring some of your existing cable if you leave it till later on though, depending on how you wired them into the loop.
I highly recommend you spend a bit of time to get up to speed with some cad software. I never used CAD either before starting my build, learnt inventor with the use of you tube and just come fiddling around. They all work pretty similar you will get it pretty quick with some youtube vids.
Apart from the sim building,Now i have a 3d printer so the CAD skills are even more worth while.
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Post by Trip Rodriguez on Oct 25, 2016 3:00:42 GMT
Thanks paulg100 for the answers. I guess I'll worry about limit switches later. Thanks for your input on learning CAD, glad to hear the basics aren't too hard to pick up. I'll have a look at Inventor if it's free. Can anyone tell me what to look for if any of the chips on my 6DOF board got zapped?
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Post by Trip Rodriguez on Oct 25, 2016 7:58:10 GMT
Talked to RL contact and confirmed the caps I was looking at are fine, also decided to mount the AMC1280 and 6DOF board in a separate metal enclosure to protect them from EMI from the non-shielded portions of the wires going to the inverters. I salvaged the metal enclosure from the long defunct alarm system in the house I live in =).
Also ordered the 3D print enclosures for Thanos' boards from thingiverse and will install them in the metal box when they arrive.
Still looking for answers to the above two questions; initial settings and symptoms to watch for if any of my 6DOF chips are bad.
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Post by paulg100 on Oct 25, 2016 18:11:19 GMT
initial settings are all in GA's build log,
If chips are bad 1) nothing moves, 2) motors do not respond properly ie: keeps rotating or does not return to home or rotates 360 degrees before stopping at home instead of only 180 and return.
maybe other symptoms also,
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Post by Trip Rodriguez on Oct 25, 2016 20:04:24 GMT
Excellent! I think that takes care of all my current questions =). Today I continue wiring and probably install the sensors. I'm still dreading the soldering of the wires onto the sensors.
I'll report back later today/tonight.
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Post by Trip Rodriguez on Oct 26, 2016 7:14:29 GMT
Less progress than I hoped today as I had to focus on some other projects first. I mounted the sensors, next I'll route the wires and solder them to the sensors. I'll update in about 24 hours with any progress.
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Post by Trip Rodriguez on Oct 27, 2016 5:23:57 GMT
I've got the first sensor soldered up but concerned about the possibility of damaging it when soldering. How can I test it?
I want to check each one as I go, before soldering the next. I'm going to need lots of hand holding yet, I have no idea whatsoever on the software side of things. I try to look but don't know what I'm looking at. The FTDI software looks like maybe that's what I need for the AMC1280USB but it's only a guess really.
I'm tempted to just plug the USB cable in but figure there is a tiny chance I could damage it somehow. Current status of the AMC1280USB is I have all the wires for the sensors connected at the board in, just #1 connected at the sensor end. Nothing else connected to it currently.
I'm currently going through page 4 of GA-Dawg's thread looking where the settings are to see if there's enough info there for me to know what to do next.
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Post by paulg100 on Oct 27, 2016 5:48:52 GMT
connect power to it and use a multimeter to check its tracking across its voltage output range.
or connect it to amc power up motor and check the lever is tracking across +- 180 (less your sensor offset set in amc1280)
or do both.
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Post by Trip Rodriguez on Oct 27, 2016 6:14:08 GMT
Need a supply of 5V then. I imagine I need to disconnect the sensor wires from the AMC before I connect external 5v?
As far as the rest, can't power up the motor, the VFD's aren't wired up yet.
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Post by tronicgr on Oct 27, 2016 10:46:36 GMT
I've got the first sensor soldered up but concerned about the possibility of damaging it when soldering. How can I test it? I want to check each one as I go, before soldering the next. I'm going to need lots of hand holding yet, I have no idea whatsoever on the software side of things. I try to look but don't know what I'm looking at. The FTDI software looks like maybe that's what I need for the AMC1280USB but it's only a guess really. I'm tempted to just plug the USB cable in but figure there is a tiny chance I could damage it somehow. Current status of the AMC1280USB is I have all the wires for the sensors connected at the board in, just #1 connected at the sensor end. Nothing else connected to it currently. I'm currently going through page 4 of GA-Dawg's thread looking where the settings are to see if there's enough info there for me to know what to do next. Just make sure you connect the sensors correct and then you can test them using the amc1280usb lcd bars or numbers (if you press in the encoder while in first screen) Sensor ---- amc1280usb Gnd ----> Gnd +5v ----> +5v Out ----> In(x) You can use the USB cable for the test, but don't have it connected while soldering to avoid short to ground.
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Post by Trip Rodriguez on Oct 27, 2016 21:53:05 GMT
Just make sure you connect the sensors correct and then you can test them using the amc1280usb lcd bars or numbers (if you press in the encoder while in first screen) Sensor ---- amc1280usb Gnd ----> Gnd +5v ----> +5v Out ----> In(x) You can use the USB cable for the test, but don't have it connected while soldering to avoid short to ground. Awesome! So I don't need any software installed for this, the USB cable connect is just for power correct? I'll be able to test the first one in a couple hours, then move on to soldering up the others if it tests ok =).
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Post by Trip Rodriguez on Oct 28, 2016 3:54:43 GMT
Excellent! All sensors soldered on and 1-4 are tested and good. Turns out the connector for attaching the 6DOF board to the AMC1280USB is on the 6DOF board already, so I don't need to wait for that but assuming some of the chips got zapped due to handling I will still be stuck waiting for those which might show up next week or not for several weeks yet. Assuming some of them are bad it's going to drive me nuts waiting!
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Post by Trip Rodriguez on Oct 28, 2016 3:56:06 GMT
Next up, can someone point me to step by step instructions on what to do once the wiring is done? I know I can get the initial settings for the VFD's and AMC1280USB from GA-Dawg's website but what do I do on the computer side? What software do install etc.?
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Post by Trip Rodriguez on Oct 29, 2016 7:08:00 GMT
Hey guys, now that the VFD's are wired up (except for connections to Thanos 6DOF board) the manual for the VFD's say it's time for the startup test. I've powered up the VFD's and immediately ran into a couple hitches. One thing that made me nervous right off is one of the VFD's LED display is half as bright as the other five but I'm not too worried about that until I try resetting it to default settings.
So following the instructions I set A001 and A002 both to 02. It then says that "NOTE: After completing the steps above, the Run Key Enable LED will be ON. This does not mean the motor is trying to run; it means that the RUN key is now enabled. DO NOT press the RUN key at this time – complete the parameter setup first."
The thing is the Run key enable LED is not in fact on. I went to reset to factory settings and found that B094 and B085 mentioned in the instructions are not available to me. I went ahead with the initialization and all this remained unchanged.
Step four of the initial startup is to set A082 to the motor voltage, but A082 isn't an option.
Any help?
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