2013/7/5 Kenneth Lerman kenneth.ler...@se-ltd.com
Checking that every pin goes where it belongs is necessary, but not
sufficient. You must also test that no pin goes where it doesn't belong.
Did you check to see if any pins were shorted to each other?
I checked power cable all the possible
Viesturs Lācis wrote:
It was a matter of good luck for multimeter
to show this particular wire lead to be ok.
No, that is bad luck when testing a defective connection shows it to
be good!
The end result is - a little soldering and problem solved! Machine works!
Thanks everyone for your
Hello!
I am stuck with a servo motor issue that I have no idea for the cause.
Machine has 5i23 and 2x 7i39 cards with total of 4 servo motors.
I set it up 2 months ago and it was working correctly. Machine was idle for
few weeks until now.
Motors 0, 1, 2 are working correctly, motor 3 does not
On 5 July 2013 16:45, Viesturs Lācis viesturs.la...@gmail.com wrote:
4) I tried to spin the motor in bldc config=n with bldc.value 0.15 and
bldc.frequency explicitly set at 0,15 and 3 respectively (motor should
slowly rotate as soon as pwmgen is enabled), but it moves just a very
little and
Viesturs Lācis wrote:
The drive is ok, motor is ok, cable is ok, but now they are not working
together. Everything was fine few weeks ago.
Make sure, with a voltmeter, that the commutation signals from the
motor are working, and giving a valid logic swing as you rotate the
motors. Some Hall
2013/7/5 Jon Elson el...@pico-systems.com
Viesturs Lācis wrote:
The drive is ok, motor is ok, cable is ok, but now they are not working
together. Everything was fine few weeks ago.
Make sure, with a voltmeter, that the commutation signals from the
motor are working, and giving a valid
On 5 July 2013 17:18, Jon Elson el...@pico-systems.com wrote:
Make sure, with a voltmeter, that the commutation signals from the
motor are working,
In n mode the system should be acting like a dumb vfd, and no
commutation is used.
--
atp
If you can't fix it, you don't own it.
Hi Viesturs.
Did you already check the motor windings resistence/impedence ?
Did the motor get any kind of torque ?
On Fri, Jul 5, 2013 at 6:25 PM, Viesturs Lācis viesturs.la...@gmail.comwrote:
2013/7/5 Jon Elson el...@pico-systems.com
Viesturs Lācis wrote:
The drive is ok, motor is
oh sorry .
Sure you already did it .
Sometimes appened that you can measure the cable resistence with the
multimeter
and everything seems ok but after that if you apply voltage to the wires
the problems come .
Did you use extra flexible cables for the motor supply ?
Are the cables fitted inside a
The motor works fine, when I swapped it on the machine with another one.
2013/7/5 alex chiosso achio...@gmail.com
Hi Viesturs.
Did you already check the motor windings resistence/impedence ?
Did the motor get any kind of torque ?
On Fri, Jul 5, 2013 at 6:25 PM, Viesturs Lācis
2013/7/5 alex chiosso achio...@gmail.com
Did you use extra flexible cables for the motor supply ?
I do not understand, what you mean.
Are the cables fitted inside a cable chain ?
Yes.
If yes are you sure that the cable fitting respect the manufacturer
specifications ?
This is motor
First all the cable must be shielded.
Secondary fot this kind of application you need at least flexible shielded
cables.
If you search for on google I am sure you will find many cable
manufacturers for that kind.
Il giorno 05/lug/2013 17:57, Viesturs Lācis viesturs.la...@gmail.com ha
scritto:
Of course is not the shield the problem!
The issue is that the cable used seems to be not ok.
Shield is anyway a must for servo applications.
And a flexible or extra flexible is a must for mobile cable chain/tray.
I know about cables not working after time due to mechanical stress.
Il giorno
.75 mm^2 is a light. I probably would have gone with at least 1.25 to
1.5 mm^2, but if you have rung out the cables for continuity, that is
not going to keep things from moving. And this setup was working
before.. right?
Igus sells some very nice shielded trailing (Hi Flex) cables for
2013/7/5 andy pugh bodge...@gmail.com
Did you check for pin-to-pin shorts in the wiring?
That seems very unlikely, but I will check that to be completely sure.
2013/7/5 Dave e...@dc9.tzo.com
.75 mm^2 is a light. I probably would have gone with at least 1.25 to
1.5 mm^2, but if you have
See below...
On 7/5/2013 11:45 AM, Viesturs Lācis wrote:
Hello!
I am stuck with a servo motor issue that I have no idea for the cause.
Machine has 5i23 and 2x 7i39 cards with total of 4 servo motors.
I set it up 2 months ago and it was working correctly. Machine was idle for
few weeks until
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