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'[OT] Technogym repairs'
2009\04\27@184311 by Brent Brown

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Hi all,

Wondering if anyone has any servicing experience with Technogym equipment
before? A friend of mine has 3 x Technogym Excite Run 700 treadmills in the gym
he works in. They are getting into the the habit of faulting and refusing to run. The
reported fault on the display is something like "equipment is blocked - refer to
sevice agent". The distributor of Technogym in NZ says replace the main 3 phase
motor controller board (NZD1500, ~ USD850). Contacting the Italian tech support
they also say replace the controller and don't talk to us, talk to our NZ agent.

The annoying thing is there is no obvious hard fault ~ all main power
semiconductors seem ok, nothing with smoke coming out of it. The excuse we're
given is that the equipment has been overloaded, due to lack of servicing the belt
creates too much friction and the controller is "blown". In practice it seems like we
get maybe 3 or so chances at this ~ the equipment faults, a power down-wait-power
up cycle clears the message and it runs again, but after "n" times the fault can not
be cleared and the unit must be replaced. I am starting to suspect a software
lockout mechanism using non-volatile memory. This goes against the grain of our
"can fix" attitude.

We've requested a technical explanation, asked for servicing information, asked if
they do a exchange service. The answer is no to everything, and the standard
reasons why this is impractical, impossible, what we are doing wrong etc. There's a
small chance someone on the list has had experience with Technogym products,
would love to hear form you. Thanks!

--
Brent Brown, Electronic Design Solutions
16 English Street, St Andrews,
Hamilton 3200, New Zealand
Ph: +64 7 849 0069
Fax: +64 7 849 0071
Cell: +64 27 433 4069
eMail:  spam_OUTbrent.brownTakeThisOuTspamclear.net.nz


2009\04\27@191148 by Vitaliy

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face
Brent Brown wrote:
{Quote hidden}

Brent, IANAL -- but what if someone gets hurt on one of the machines you
repair? Is it really worth the savings?

If this sort of thing keeps happening too frequently, perhaps it's time for
your friend to vote with his NZD, and switch vendors? I would expect a
decent vendor to have a decent warranty on the stuff they sell.

Vitaliy

2009\04\27@191513 by Marcel Duchamp

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Brent Brown wrote:
{Quote hidden}

No experience but I would remove the nvram from a good one, read it,
dupe it and solder it onto the bad one to see if it is indeed just a
scam.  If that fixes it, look at a socket to make it easier to swap out
or whatever.

2009\04\27@193139 by Jinx

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> Wondering if anyone has any servicing experience with Technogym
> equipment

Brent, your experience is very much like that I had with a friend's Neolt
board cutter. $2000+ for a fairly simple motor controller board and a
"talk to the hand" attitude from the Italian manufacturer. After giving it
the once-over I was quite confident it could have been done with a PIC
from this century. Eventually one of her servicemen offered to do it with
PLCs. Which he did. But didn't finish the job and buggered off leaving
some functions not working and the laser crooked

2009\04\27@210901 by Tony Vandiver

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face
I'm not familiar with that treadmill explicitly, but I've designed a lot
of stuff to run on them, and if you do get to the point where you're
replacing NV memory and it works (or not), also look at servicing the
belt.  The load on the motor controller is directly proportional to the
friction between the belt and the deck.  Over time, without waxing or
replacing the belt/deck, the load on the motor controller gets worse and
worse, and finally will become too much to handle for whatever
motor/controller you put on it.  How long have they been in service?  If
it's a 3 phase and you just have to replace the controller, look at some
of the AC Tech stuff - maybe easy enough to just replace the motor
controller with something similar if you want to take the time to
customize the parameters on the drive and recalibrate.  This is assuming
that they're using a 0-10V speed control scheme and not some crazy
serial protocol from the console.

Tony


Marcel Duchamp wrote:
{Quote hidden}

2009\04\28@042357 by Alan B. Pearce

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>Brent, IANAL -- but what if someone gets hurt on one of
>the machines you repair? Is it really worth the savings?

Brent has the advantage of the New Zealand Accident Compensation Commission,
which pays for accident health care. It is very difficult to sue anyone over
an accident in NZ, because of this scheme.

E.g. after the Mount Erebus plane crash in Antarctica, no-one could sue Air
New Zealand, as the flight was an internal Auckland-Christchurch flight,
that did a scenic detour to Antarctica.

2009\04\30@013242 by Brent Brown

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On 27 Apr 2009 at 16:15, Marcel Duchamp wrote:
> No experience but I would remove the nvram from a good one, read it,
> dupe it and solder it onto the bad one to see if it is indeed just a
> scam.  If that fixes it, look at a socket to make it easier to swap out
> or whatever.

Thanks Marcel. Tried your suggetion today. Atmel AT24C32 EEPROM. Copied
contents from good machine to bad machine. It did transfer a fault code the "good"
machine had been displaying, but didn't fix the main problem.

Sigh. Maybe there is a hardware fault after all. Thanks for everyones suggestions.

--
Brent Brown, Electronic Design Solutions
16 English Street, St Andrews,
Hamilton 3200, New Zealand
Ph: +64 7 849 0069
Fax: +64 7 849 0071
Cell: +64 27 433 4069
eMail:  .....brent.brownKILLspamspam@spam@clear.net.nz


2009\04\30@014352 by Brent Brown

picon face
On 27 Apr 2009 at 20:08, Tony Vandiver wrote:
> I'm not familiar with that treadmill explicitly, but I've designed a lot
> of stuff to run on them, and if you do get to the point where you're
> replacing NV memory and it works (or not), also look at servicing the
> belt.  The load on the motor controller is directly proportional to the
> friction between the belt and the deck.  Over time, without waxing or
> replacing the belt/deck, the load on the motor controller gets worse and
> worse, and finally will become too much to handle for whatever
> motor/controller you put on it.  How long have they been in service?  If
> it's a 3 phase and you just have to replace the controller, look at some
> of the AC Tech stuff - maybe easy enough to just replace the motor
> controller with something similar if you want to take the time to
> customize the parameters on the drive and recalibrate. This is assuming
> that they're using a 0-10V speed control scheme and not some crazy
> serial protocol from the console.

Hi Tony. The machines have recently been serviced, and belts lubed again just a
few days before the latest breakdown. No doubt we'll be told the belts should have
been replaced at the same time. Controller looks a bit high tech to replace easily,
looks like RS485 to main console. Motor is 3ph (6kW?). It just seems something is
very fragile and running close to the limit if it is excessive friction loading causing a
controller failure.

--
Brent Brown, Electronic Design Solutions
16 English Street, St Andrews,
Hamilton 3200, New Zealand
Ph: +64 7 849 0069
Fax: +64 7 849 0071
Cell: +64 27 433 4069
eMail:  brent.brownspamKILLspamclear.net.nz


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