"To answer your question: if there is a power failure while the saw is
running, the cartridge might stay powered for about 1-2 seconds at most
while its internal voltage falls off.

So under those conditions (saw coasting down, no power to saw at all)
touching the blade would not activate the safety system."



So here is how I read this. If the lights go out you try not to
continue sawing. In the event you are very close to the blade while
cutting and the power fails the blade is going to stop more quickly and
the brake may activate before the blade stops.

On 12/6/2012 4:52 PM, Leon wrote:
"To answer your question: if there is a power failure while the saw is
running, the cartridge might stay powered for about 1-2 seconds at most
while its internal voltage falls off.

So under those conditions (saw coasting down, no power to saw at all)
touching the blade would not activate the safety system."



So here is how I read this. If the lights go out you try not to continue
sawing. In the event you are very close to the blade while cutting and
the power fails the blade is going to stop more quickly and the brake
may activate before the blade stops.


How so????...they just explicitly said "under those conditions...
touching the blade would not activate the safety system."

My reading is the sensor electronics may hang on for very short time but
again w/o power the likelihood of the fusible link firing is essentially
zero.

I'd guess there's also a decent chance the power transient may trash the
processor anyway, even if the absolute voltage Vcc hasn't dropped below
the Vmin threshold.

--

On 12/6/2012 5:28 PM, dpb wrote:
On 12/6/2012 4:52 PM, Leon wrote:
"To answer your question: if there is a power failure while the saw is
running, the cartridge might stay powered for about 1-2 seconds at most
while its internal voltage falls off.

So under those conditions (saw coasting down, no power to saw at all)
touching the blade would not activate the safety system."



So here is how I read this. If the lights go out you try not to continue
sawing. In the event you are very close to the blade while cutting and
the power fails the blade is going to stop more quickly and the brake
may activate before the blade stops.


How so????...they just explicitly said "under those conditions...
touching the blade would not activate the safety system."

Power for one to two seconds to trip the brake is enough. I think if
you have a black out you are not likely to continue pushing your hand
towards the blade and if you do the wood should stop the blade.

Not as safe but a lot of things would have to go wrong besides the
lights and power going out.

On 12/6/2012 5:39 PM, Leon wrote:
On 12/6/2012 5:28 PM, dpb wrote:
On 12/6/2012 4:52 PM, Leon wrote:
"To answer your question: if there is a power failure while the saw is
running, the cartridge might stay powered for about 1-2 seconds at most
while its internal voltage falls off.

So under those conditions (saw coasting down, no power to saw at all)
touching the blade would not activate the safety system."



So here is how I read this. If the lights go out you try not to continue
sawing. In the event you are very close to the blade while cutting and
the power fails the blade is going to stop more quickly and the brake
may activate before the blade stops.


How so????...they just explicitly said "under those conditions...
touching the blade would not activate the safety system."

Power for one to two seconds to trip the brake is enough. I think if you
have a black out you are not likely to continue pushing your hand
towards the blade and if you do the wood should stop the blade.


Why are you pushing your HAND toward the blade in the first place?

I'm going to misquote Wilbur Wright - If you want perfect safety
go sit on the fence... (but fasten a seat belt so you don't fall off!)

On 12/6/2012 5:59 PM, Richard wrote:
On 12/6/2012 5:39 PM, Leon wrote:
On 12/6/2012 5:28 PM, dpb wrote:
On 12/6/2012 4:52 PM, Leon wrote:
"To answer your question: if there is a power failure while the saw is
running, the cartridge might stay powered for about 1-2 seconds at most
while its internal voltage falls off.

So under those conditions (saw coasting down, no power to saw at all)
touching the blade would not activate the safety system."



So here is how I read this. If the lights go out you try not to
continue
sawing. In the event you are very close to the blade while cutting and
the power fails the blade is going to stop more quickly and the brake
may activate before the blade stops.


How so????...they just explicitly said "under those conditions...
touching the blade would not activate the safety system."

Power for one to two seconds to trip the brake is enough. I think if you
have a black out you are not likely to continue pushing your hand
towards the blade and if you do the wood should stop the blade.


Why are you pushing your HAND toward the blade in the first place?

Well what direction do you push your hand when cutting wood on a TS?

On Thu, 06 Dec 2012 21:20:55 -0600, Leon lcb11211@swbelldotnet
wrote:



Power for one to two seconds to trip the brake is enough. I think if you
have a black out you are not likely to continue pushing your hand
towards the blade and if you do the wood should stop the blade.


Why are you pushing your HAND toward the blade in the first place?

Well what direction do you push your hand when cutting wood on a TS?




I never push towards the blade. I push towards the back of the saw,
usually along the fence or holding a push block. NEVER in line with
the blade.

On Thu, 06 Dec 2012 21:20:55 -0600, Leon lcb11211@swbelldotnet
wrote:

On 12/6/2012 5:59 PM, Richard wrote:
On 12/6/2012 5:39 PM, Leon wrote:
On 12/6/2012 5:28 PM, dpb wrote:
On 12/6/2012 4:52 PM, Leon wrote:
"To answer your question: if there is a power failure while the saw is
running, the cartridge might stay powered for about 1-2 seconds at most
while its internal voltage falls off.

So under those conditions (saw coasting down, no power to saw at all)
touching the blade would not activate the safety system."



So here is how I read this. If the lights go out you try not to
continue
sawing. In the event you are very close to the blade while cutting and
the power fails the blade is going to stop more quickly and the brake
may activate before the blade stops.


How so????...they just explicitly said "under those conditions...
touching the blade would not activate the safety system."

Power for one to two seconds to trip the brake is enough. I think if you
have a black out you are not likely to continue pushing your hand
towards the blade and if you do the wood should stop the blade.


Why are you pushing your HAND toward the blade in the first place?

Well what direction do you push your hand when cutting wood on a TS?



Unless your nickname is "lefty", generally PARRALLEL to the blade.

On 12/6/2012 5:39 PM, Leon wrote:
On 12/6/2012 5:28 PM, dpb wrote:
On 12/6/2012 4:52 PM, Leon wrote:
"To answer your question: if there is a power failure while the saw is
running, the cartridge might stay powered for about 1-2 seconds at most
while its internal voltage falls off.

So under those conditions (saw coasting down, no power to saw at all)
touching the blade would not activate the safety system."
....
So here is how I read this. If the lights go out you try not to continue
sawing. In the event you are very close to the blade while cutting and
the power fails the blade is going to stop more quickly and the brake
may activate before the blade stops.


How so????...they just explicitly said "under those conditions...
touching the blade would not activate the safety system."

Power for one to two seconds to trip the brake is enough. I think if you
have a black out you are not likely to continue pushing your hand
towards the blade and if you do the wood should stop the blade.
....

I repeat their words...

"So under those conditions (saw coasting down, no power to saw at all)
touching the blade would not activate the safety system."

No power, no trip...

--

On 12/6/2012 6:10 PM, dpb wrote:
On 12/6/2012 5:39 PM, Leon wrote:
On 12/6/2012 5:28 PM, dpb wrote:
On 12/6/2012 4:52 PM, Leon wrote:
"To answer your question: if there is a power failure while the saw is
running, the cartridge might stay powered for about 1-2 seconds at most
while its internal voltage falls off.

So under those conditions (saw coasting down, no power to saw at all)
touching the blade would not activate the safety system."
...
So here is how I read this. If the lights go out you try not to
continue
sawing. In the event you are very close to the blade while cutting and
the power fails the blade is going to stop more quickly and the brake
may activate before the blade stops.


How so????...they just explicitly said "under those conditions...
touching the blade would not activate the safety system."

Power for one to two seconds to trip the brake is enough. I think if you
have a black out you are not likely to continue pushing your hand
towards the blade and if you do the wood should stop the blade.
...

I repeat their words...

"So under those conditions (saw coasting down, no power to saw at all)
touching the blade would not activate the safety system."

No power, no trip...

--


Read his first paragraph. He is just covering his ass in the event that
does not work.

On 12/6/2012 9:22 PM, Leon wrote:
On 12/6/2012 6:10 PM, dpb wrote:
On 12/6/2012 5:39 PM, Leon wrote:
On 12/6/2012 5:28 PM, dpb wrote:
On 12/6/2012 4:52 PM, Leon wrote:
"To answer your question: if there is a power failure while the saw is
running, the cartridge might stay powered for about 1-2 seconds at
most
while its internal voltage falls off.

So under those conditions (saw coasting down, no power to saw at all)
touching the blade would not activate the safety system."
...
So here is how I read this. If the lights go out you try not to
continue
sawing. In the event you are very close to the blade while cutting and
the power fails the blade is going to stop more quickly and the brake
may activate before the blade stops.


How so????...they just explicitly said "under those conditions...
touching the blade would not activate the safety system."

Power for one to two seconds to trip the brake is enough. I think if you
have a black out you are not likely to continue pushing your hand
towards the blade and if you do the wood should stop the blade.
...

I repeat their words...

"So under those conditions (saw coasting down, no power to saw at
all)
touching the blade would not activate the safety system."

No power, no trip...

--


Read his first paragraph. He is just covering his ass in the event that
does not work.

Read his last words--he said it won't work reliable...which means it
doesn't work and isn't intended to work.

--

On 12/6/2012 6:28 PM, dpb wrote:
On 12/6/2012 4:52 PM, Leon wrote:
"To answer your question: if there is a power failure while the saw is
running, the cartridge might stay powered for about 1-2 seconds at most
while its internal voltage falls off.

So under those conditions (saw coasting down, no power to saw at all)
touching the blade would not activate the safety system."



So here is how I read this. If the lights go out you try not to continue
sawing. In the event you are very close to the blade while cutting and
the power fails the blade is going to stop more quickly and the brake
may activate before the blade stops.


How so????...they just explicitly said "under those conditions...
touching the blade would not activate the safety system."

My reading is the sensor electronics may hang on for very short time but
again w/o power the likelihood of the fusible link firing is essentially
zero.

I'd guess there's also a decent chance the power transient may trash the
processor anyway, even if the absolute voltage Vcc hasn't dropped below
the Vmin threshold.

--
remember this operates like a GFCI , I don't think it will trash it.
There is a chance that the moment b4 power loss, that this might think
this is grounded and fire w/remaining voltage. But doubtful.

"Leon" lcb11211@swbelldotnet wrote in message
...
"To answer your question: if there is a power failure while the saw is
running, the cartridge might stay powered for about 1-2 seconds at most
while its internal voltage falls off.

So under those conditions (saw coasting down, no power to saw at all)
touching the blade would not activate the safety system."



So here is how I read this. If the lights go out you try not to continue
sawing. In the event you are very close to the blade while cutting and
the power fails the blade is going to stop more quickly and the brake may
activate before the blade stops.


Hmmmm..... a product flaw that is ripe for lawsuit picking. In the scenario
where the power fails the workman cannot see to control the wood or keep
his/her hands clear of the blade and gets badly cut as the saw is winding
down. This problem was foreseeable and preventable... One or more large
capacitors, or a UPS (uninterruptable power supply) on the safety device
could have kept the safety device active for several seconds or more giving
the saw time to wind down and the user to safely remove their hands from the
danger area. Out lawyer the lawyer? ;~)

John

On 12/6/2012 5:38 PM, John Grossbohlin wrote:

"Leon" lcb11211@swbelldotnet wrote in message
...
"To answer your question: if there is a power failure while the saw is
running, the cartridge might stay powered for about 1-2 seconds at
most while its internal voltage falls off.

So under those conditions (saw coasting down, no power to saw at all)
touching the blade would not activate the safety system."



So here is how I read this. If the lights go out you try not to
continue sawing. In the event you are very close to the blade while
cutting and the power fails the blade is going to stop more quickly
and the brake may activate before the blade stops.


Hmmmm..... a product flaw that is ripe for lawsuit picking. In the
scenario where the power fails the workman cannot see to control the
wood or keep his/her hands clear of the blade and gets badly cut as the
saw is winding down. This problem was foreseeable and preventable... One
or more large capacitors, or a UPS (uninterruptable power supply) on the
safety device could have kept the safety device active for several
seconds or more giving the saw time to wind down and the user to safely
remove their hands from the danger area. Out lawyer the lawyer? ;~)

John



So do you propose going after the power company? Under normal
circumstances the saw safety will work. If the lights go out and the
motor looses power I suspect no one will blame the saw should an
accident happen.

"Leon" lcb11211@swbelldotnet wrote in message
...
On 12/6/2012 5:38 PM, John Grossbohlin wrote:

"Leon" lcb11211@swbelldotnet wrote in message
...
"To answer your question: if there is a power failure while the saw is
running, the cartridge might stay powered for about 1-2 seconds at
most while its internal voltage falls off.

So under those conditions (saw coasting down, no power to saw at all)
touching the blade would not activate the safety system."



So here is how I read this. If the lights go out you try not to
continue sawing. In the event you are very close to the blade while
cutting and the power fails the blade is going to stop more quickly
and the brake may activate before the blade stops.


Hmmmm..... a product flaw that is ripe for lawsuit picking. In the
scenario where the power fails the workman cannot see to control the
wood or keep his/her hands clear of the blade and gets badly cut as the
saw is winding down. This problem was foreseeable and preventable... One
or more large capacitors, or a UPS (uninterruptable power supply) on the
safety device could have kept the safety device active for several
seconds or more giving the saw time to wind down and the user to safely
remove their hands from the danger area. Out lawyer the lawyer? ;~)

John



So do you propose going after the power company? Under normal
circumstances the saw safety will work. If the lights go out and the
motor looses power I suspect no one will blame the saw should an accident
happen.

No... poking fun at the flawless product...

On 12/7/2012 11:17 AM, John Grossbohlin wrote:

"Leon" lcb11211@swbelldotnet wrote in message
...
On 12/6/2012 5:38 PM, John Grossbohlin wrote:

"Leon" lcb11211@swbelldotnet wrote in message
...
"To answer your question: if there is a power failure while the saw is
running, the cartridge might stay powered for about 1-2 seconds at
most while its internal voltage falls off.

So under those conditions (saw coasting down, no power to saw at all)
touching the blade would not activate the safety system."



So here is how I read this. If the lights go out you try not to
continue sawing. In the event you are very close to the blade while
cutting and the power fails the blade is going to stop more quickly
and the brake may activate before the blade stops.


Hmmmm..... a product flaw that is ripe for lawsuit picking. In the
scenario where the power fails the workman cannot see to control the
wood or keep his/her hands clear of the blade and gets badly cut as the
saw is winding down. This problem was foreseeable and preventable... One
or more large capacitors, or a UPS (uninterruptable power supply) on the
safety device could have kept the safety device active for several
seconds or more giving the saw time to wind down and the user to safely
remove their hands from the danger area. Out lawyer the lawyer? ;~)

John



So do you propose going after the power company? Under normal
circumstances the saw safety will work. If the lights go out and the
motor looses power I suspect no one will blame the saw should an
accident happen.

No... poking fun at the flawless product...


Oh, OK, ;~)

Leon wrote:
"To answer your question: if there is a power failure while the saw is
running, the cartridge might stay powered for about 1-2 seconds at most
while its internal voltage falls off.

So under those conditions (saw coasting down, no power to saw at all)
touching the blade would not activate the safety system."



So here is how I read this. If the lights go out you try not to
continue sawing. In the event you are very close to the blade while
cutting and the power fails the blade is going to stop more quickly and
the brake may activate before the blade stops.



How about those impatient souls who turn off the saw then get cut by
the coasting blade as they grab the cut-off piece of wood. Does the
safety system remain active for more than two seconds after the saw is
turned off?

--
G.W. Ross

Take my advice, I don't use it anyway.

On 12/6/2012 6:06 PM, G. Ross wrote:
....

How about those impatient souls who turn off the saw then get cut by the
coasting blade as they grab the cut-off piece of wood. Does the safety
system remain active for more than two seconds after the saw is turned off?

This isn't turning the saw off; it's loss of power _to_ the
saw...totally different.

--

On 12/6/2012 6:06 PM, G. Ross wrote:
Leon wrote:
"To answer your question: if there is a power failure while the saw is
running, the cartridge might stay powered for about 1-2 seconds at most
while its internal voltage falls off.

So under those conditions (saw coasting down, no power to saw at all)
touching the blade would not activate the safety system."



So here is how I read this. If the lights go out you try not to
continue sawing. In the event you are very close to the blade while
cutting and the power fails the blade is going to stop more quickly and
the brake may activate before the blade stops.



How about those impatient souls who turn off the saw then get cut by the
coasting blade as they grab the cut-off piece of wood. Does the safety
system remain active for more than two seconds after the saw is turned off?



Yes the system is active after the motor is turned off and the blade is
still spinning.