Jon
I was suffering from extra distractions. The last line should be:
1.003332 0.983 301 RPM
Probably makes no difference the message is the same.
Don
On Fri, Sep 24, 2010 at 2:16 PM, Don Stanley <[email protected]> wrote:
>
>
> On Fri, Sep 24, 2010 at 12:00 PM, Jon Elson <[email protected]>wrote:
>
>> Don Stanley wrote:
>> > On Thu, Sep 23, 2010 at 9:18 PM, Jon Elson <[email protected]>
>> wrote:
>> >
>> >
>> >> Don Stanley wrote:
>> >>
>> >>> Hi All;
>> >>> What conditions do the JP1 and JP2 set?
>> >>> I need 0-10 Volt from the DAC, preferably using all eight bits.
>> >>>
>> >>
>> Just for future reference, I have added this info to the doc page at
>> http://pico-systems.com/spindac.html
>> > Thanks, that fixed that.
>> >
>> > The other 10% step problem is; motion.spindle-speed-out is passed
>> > through scale.0 and mux2.0 to correct for different gears of the
>> > spindle drive. One of those is apparently messing with the data but
>> > it looks good in Hal Show.
>> > I'll test that tomorrow and pass it on.
>> > Unless you (or someone) already know the answer and solution?
>> >
>> Well, it sounds like one of those components is treating the value as an
>> integer
>> rather than a float. Can you check what is being sent to
>>
>> ppmc.0.DAC8.00.value? Is it getting values that are changing in small
>> increments, but the output only changes in large jumps?
>>
>> If so, then there is either a hardware problem and some of the data
>> bits are not getting through to the DAC, or there is a new software
>> quirk in the driver.
>>
> Jon;
> I am using the Axis Display Manual Control window Spindle controls
> for the following ppmc.0.DAC8.00.value inputs and a meter on the
> DAC outputs. JP1 missing and JP2 horizontal right.
> ppmc.0.DAC8.00.value DAC Volts Out Comment
> 0.003333333 0.0176 Spindle CW or
> CCW=1 RPM
> 0.3366663 0.0176 101 RPM
> 0.6699993 0.0176 201 RPM
> 1.003332 1.003332 301 RPM
> This sequence continues with DAC Output changes only when input
> is up another 1 Volt.
>
> My _io.hal code is as follows:
> #######################################################
> # Spindle Speed, Direction and Gears
> # DAC jumpers = JP1 removed JP2 horizontal right
> #######################################################
> setp mux2.0.in0 [SPINDLE]LOW_GEAR_V_RPM # 10 volts/350 RPM = 0.0285714
> setp mux2.0.in1 [SPINDLE]HIGH_GEAR_V_RPM # 10 volts/3000 RPM = 0.00333333
> #setp scale.0.offset 0.0
> #setp ppmc.0.DAC8.00.scale 300.
> net spindle-rpm-cmd motion.spindle-speed-out => scale.0.in
> net spindle-higear ppmc.0.din.06.in-not => mux2.0.sel
> net spindle-gain mux2.0.out => scale.0.gain
> net spindle-volts scale.0.out => ppmc.0.DAC8.00.value
> net spindle-fwd motion.spindle-forward => ppmc.0.dout.00.out
> net spindle-rev motion.spindle-reverse => ppmc.0.dout.01.out
>
> Your _io.hal works fine with the Axis Display on my system.
> That's the sum of my knowledge to this point.
>
> Thanks for your help
> Don
>
>>
>> You might try using the univstepdiags program. The command is
>> sudo ./univstepdiags 378 spindle
>>
>> It then asks for the output in volts. So, enter 1.25 or 2.5 and see if
>> you get
>> values in fractions of volts. I will check this here, but my test system
>> is really old, based on the 6.06 release, so if it is a software problem,
>> it may not show up.
>>
>> If you don't have it, the diags program can be loaded from here :
>> http://pico-systems.com/codes/univstepdiags.tgz
>>
>> Jon
>>
>>
>>
>> ------------------------------------------------------------------------------
>> Start uncovering the many advantages of virtual appliances
>> and start using them to simplify application deployment and
>> accelerate your shift to cloud computing.
>> http://p.sf.net/sfu/novell-sfdev2dev
>> _______________________________________________
>> Emc-users mailing list
>> [email protected]
>> https://lists.sourceforge.net/lists/listinfo/emc-users
>>
>
>
------------------------------------------------------------------------------
Start uncovering the many advantages of virtual appliances
and start using them to simplify application deployment and
accelerate your shift to cloud computing.
http://p.sf.net/sfu/novell-sfdev2dev
_______________________________________________
Emc-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/emc-users
