On Friday 29 May 2020 22:36:43 andrew beck wrote:
> actually just another question here gene
>
> so following along that analogy you made with the single bolt for all
> ground wires. if I connect the pc case to the bolt and also the 0v
> from 24v dc outputs,
>
> does that mean that I don't have
sweet as gene
actually on this currently I have 2 big blocks for grounding. both
connected together with a decent 6 mm cable. is that enough to work as one
ground block or do I really need to get and machine/ buy another grounding
block that is all one piece
the latest is the E stop circuit
On Friday 29 May 2020 22:14:57 andrew beck wrote:
> sweet thanks gene
>
> I will take your advice and connect the pc chassis to the main ground.
>
> I think I will continue to use my grounding blocks for now though as
> there are about 20 ground cables to connect up and that is getting a
> bit
ok just a update here.
I connected the field IO 0v to machine ground
I connected the computer chassis to machine ground
I didn't know that I had to test for resistance between machine ground and
dc 0v with the machine turned off. so powered it straight up..
anyway just waiting for 10 mins now
actually just another question here gene
so following along that analogy you made with the single bolt for all
ground wires. if I connect the pc case to the bolt and also the 0v from
24v dc outputs,
does that mean that I don't have to connect between the mesa 7i76 field io
0v and logic power
sweet thanks gene
I will take your advice and connect the pc chassis to the main ground.
I think I will continue to use my grounding blocks for now though as there
are about 20 ground cables to connect up and that is getting a bit much for
one bolt I think. hopefully I don't have a problem. I
On Friday 29 May 2020 21:22:09 andrew beck wrote:
> thanks guys
>
> just one question about all this gene
>
> why do you suggest breaking the ground off the the computer
> powersupply cable and connecting a ground from the pc chassis to the
> machine main ground?
>
> does the grounding that goes
thanks guys
just one question about all this gene
why do you suggest breaking the ground off the the computer powersupply
cable and connecting a ground from the pc chassis to the machine main
ground?
does the grounding that goes through the cable now good enough?
regards
Andrew
On Fri, May
>
> Connect all grounds to this bolt, checking that they are not grounded at
> the far end. By doing this, you are establishing a single point ground
> that is the zero volt reference for the whole system. Connect this bolt
> to the building static ground, the bare wire in most power cabling.
>
>
On Thursday 28 May 2020 18:36:10 andrew beck wrote:
> hey gene
>
> sorry for the slow reply
>
> just getting to this grounding thing now.
>
> currently I have single large copper block with a lot of holes in it
> for terminals, this is connected to the earth(ground) wire that goes
> back to the
On Fri, 29 May 2020, andrew beck wrote:
Date: Fri, 29 May 2020 10:36:10 +1200
From: andrew beck
Reply-To: "Enhanced Machine Controller (EMC)"
To: "Enhanced Machine Controller (EMC)"
Subject: Re: [Emc-users] mesa 7i76 spindle encoder not counting suddenly
hey gene
hey gene
sorry for the slow reply
just getting to this grounding thing now.
currently I have single large copper block with a lot of holes in it for
terminals, this is connected to the earth(ground) wire that goes back to
the whole shed main ground wire rod in the dirt
all my servo drives and
On Thursday 21 May 2020 01:57:06 andrew beck wrote:
> hey peter
>
> I had a look and the unless there is a shorted out pin in the servo
> drive connector itself I think the wiring is all good.
>
> and I highly doubt the servo drive has problems all I did was connect
> the 24v back into the servo
; > wrote:
>> >
>> >> hey peter I will check that now before I put the machine together
>> >> again without the encoder config to make parts again
>> >>
>> >>
>> >>
>> >>
>> >>
>> >> On Thu, M
> > To: "Enhanced Machine Controller (EMC)" >
> > Subject: Re: [Emc-users] mesa 7i76 spindle encoder not counting suddenly
> >
> > hey PCW and andy
> >
> > I just checked the mpg with a multimeter.
> >
> > I had my brother jogging
On Thu, 21 May 2020, andrew beck wrote:
Date: Thu, 21 May 2020 15:53:45 +1200
From: andrew beck
Reply-To: "Enhanced Machine Controller (EMC)"
To: "Enhanced Machine Controller (EMC)"
Subject: Re: [Emc-users] mesa 7i76 spindle encoder not counting suddenly
hey PCW and
From: andrew beck
> > Reply-To: "Enhanced Machine Controller (EMC)"
> >
> > To: "Enhanced Machine Controller (EMC)" >
> > Subject: Re: [Emc-users] mesa 7i76 spindle encoder not counting suddenly
> >
> > hey peter
> >
> >I am using
On Thu, 21 May 2020, andrew beck wrote:
Date: Thu, 21 May 2020 14:05:02 +1200
From: andrew beck
Reply-To: "Enhanced Machine Controller (EMC)"
To: "Enhanced Machine Controller (EMC)"
Subject: Re: [Emc-users] mesa 7i76 spindle encoder not counting suddenly
hey pete
e: Thu, 21 May 2020 02:33:16 +0100
>> > From: andy pugh
>> > Reply-To: "Enhanced Machine Controller (EMC)"
>> >
>> > To: "Enhanced Machine Controller (EMC)" <
>> emc-users@lists.sourceforge.net>
>> > Subject: Re: [Emc-user
gt; > To: "Enhanced Machine Controller (EMC)" >
> > Subject: Re: [Emc-users] mesa 7i76 spindle encoder not counting suddenly
> >
> > On Thu, 21 May 2020 at 02:22, andrew beck
> wrote:
>
> >> I read a post you made while ago saying that the 5v and 24v
On Thu, 21 May 2020, andrew beck wrote:
Date: Thu, 21 May 2020 13:44:03 +1200
From: andrew beck
Reply-To: "Enhanced Machine Controller (EMC)"
To: "Enhanced Machine Controller (EMC)"
Subject: Re: [Emc-users] mesa 7i76 spindle encoder not counting suddenly
a
On Thu, 21 May 2020, andrew beck wrote:
Date: Thu, 21 May 2020 13:38:08 +1200
From: andrew beck
Reply-To: "Enhanced Machine Controller (EMC)"
To: "Enhanced Machine Controller (EMC)"
Subject: Re: [Emc-users] mesa 7i76 spindle encoder not counting suddenly
thanks for
On Thu, 21 May 2020, andy pugh wrote:
Date: Thu, 21 May 2020 02:33:16 +0100
From: andy pugh
Reply-To: "Enhanced Machine Controller (EMC)"
To: "Enhanced Machine Controller (EMC)"
Subject: Re: [Emc-users] mesa 7i76 spindle encoder not counting suddenly
On Thu, 21 May 2
r C. Wallace wrote:
>
>> On Thu, 21 May 2020, andy pugh wrote:
>>
>> >> Date: Thu, 21 May 2020 02:21:02 +0100
>> >> From: andy pugh
>> >> Reply-To: "Enhanced Machine Controller (EMC)"
>> >>
>> >> To: &
ote:
>
> >> Date: Thu, 21 May 2020 02:21:02 +0100
> >> From: andy pugh
> >> Reply-To: "Enhanced Machine Controller (EMC)"
> >>
> >> To: "Enhanced Machine Controller (EMC)" <
> emc-users@lists.sourceforge.net>
> >> Subj
On Thu, 21 May 2020, andy pugh wrote:
Date: Thu, 21 May 2020 02:21:02 +0100
From: andy pugh
Reply-To: "Enhanced Machine Controller (EMC)"
To: "Enhanced Machine Controller (EMC)"
Subject: Re: [Emc-users] mesa 7i76 spindle encoder not counting suddenly
On Thu, 21 May 2
hey andy
just to make this crystal clear
do you want me to check with a multimeter between A+/A- and then afterwards
separately check between B+/B-
that will be slightly hard to do as the encoder is a simulated output or
something from the servo drive..
I might need to get another person to
On Thu, 21 May 2020 at 02:22, andrew beck wrote:
> I read a post you made while ago saying that the 5v and 24v powersupplies
> need to be within a certain threshold to work well. or else they need to
> be commoned together
This is really a question for PCW. I think that they need to be within
On Thu, 21 May 2020 at 02:14, andrew beck wrote:
> I am wired up with differential twisted pairs.
That's a good start.
> also the 5i25 is connected powering the 7i76 spindle encoder power which I
> am using (I don't have a external 5v powersupply.
If you put a multimeter on the A+ / A- and B+
I read a post you made while ago saying that the 5v and 24v powersupplies
need to be within a certain threshold to work well. or else they need to
be commoned together
so if I test between the 7i76 mesa 24 field power ground ( this is the same
power as the servo drive control power) and the
hey andy thanks for the quick reply.
I am wired up with differential twisted pairs.
I have the 24v dc power supply powering all the general clean power needs
on the machine. eg mesa 7i76 card and servo drives logic power. also
powering the servo on pin on the servo drive connector.
I am still
On Thu, 21 May 2020 at 01:47, andrew beck wrote:
> Now all it seems to do is change from 0 to 1 on the count and there is not
> any sense to the numbers changing. it is not counting as it was before.
This is what you see if one of the A or B channels has stopped
working. You can probably see
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