Like Georg Ohm, it would seem that the Time Out Jumper is something people will one day accept as a safety device.
A study of labor will point out that Hard Hats were first made by the laborers of the Bolder Dam Project and when the 1400 workers asked they be provided with them, they were laid off. Now, Hard hats are a part of Personal Protective equipment, just as the TOJ should be.
The value of such a product can only be simply seen by those who see real life adventures in the controllers and machine rooms. Like seat belts in automobiles, the life they save might be yours.
Using product liability as a reason not to use such a pragmatic safety device is like the person who refused to prepare for an earthquake because it might give them a false sense of security.
Please accept my personal commendation and respect for having done something about it.
(I still see people throwing lit cigarettes out of moving cars.)
Basically if the person does not have the authority to say yes, they do not have the authority to say no to using your device. If that person has the authority to say yes and chooses an incentive check over the safety of employees in their charge, I am confident that the universal boomerang theorem will apply personally in their lives and like hot coals on their heads remind them of the greed for all the days of their lives.
Respectfully Submitted,
Robert L Krieger Jr.
http://cstools.asme.org/csconnect/pdf/ANSI/BSR8/PublicReviewDraft1711.pdf
TN 08-634
Concerns tht SIL (Safety Integrity level. The way I read this is safety functions can be controlled by Electronics instead of hard wired relays. (Safety circuit? Doors?..Seems to me after careful reading)...Thoughts?
More on SIL rated PES.
http://content.martyweil.net/Elevator%20World%20Advertorial%201.pdf
As Dylan said.
"The times they are a changing"???
We then implemented this procedure. It has served us well. It might not work for every company. We are not SUPPOSED to have any jumpers. The only company approved way to perform the annual, five year test, getting the car to floor level or troubleshooting that requires testing out safety circuits is to use our pendant. It is a standard pendant with a safe, up, and down button. The part that is different is a 10 port male plug that is wired into our pendants. These are the same pendants that we use for construction also. It will only plug into the corresponding 10 port female plug. We have installed a 10 port female plug on every contractual customer, every unit that we install and any on call customer that we take care of. Every mechanic has this pendant and the female plugs with them. The female port on the elevator controller is wired so that the male port of the pendant safe button only has power when the inspect circuit of the elevator is energized. With it wired this way the elevator can not operate on automatic. This is performed by using one of the female ports that is wired into the elevator controller as the run circuit supply before any safety string device and JUMPING it through a port of the male plug to the inspect circuit of the female port. The only way the female port can supply our pendant with power is if the car is turned to inspect.
We tested out a couple of versions of pendants with individual momentary toggle switches that would jump out each safety device sos, gov, stop, buffer, pit, switches. These were a little complicated and time consuming for each controller.It was then decided that if the technician could determine that the unit would run on inspect with the pendant, the technician SHOULD be able to determine which safety circuit was at fault. This makes it a lot quicker when performing the annual and five year testing. We only have to plug our pendant into our port.
The pendant that is mentioned above has worked out well for us. I would love to hear any other ideas, as I know this is not the best idea.
We then implemented this procedure. It has served us well. It might not work for every company. We are not SUPPOSED to have any jumpers. The only company approved way to perform the annual, five year test, getting the car to floor level or troubleshooting that requires testing out safety circuits is to use our pendant. It is a standard pendant with a safe, up, and down button. The part that is different is a 10 port male plug that is wired into our pendants. These are the same pendants that we use for construction also. It will only plug into the corresponding 10 port female plug. We have installed a 10 port female plug on every contractual customer, every unit that we install and any on call customer that we take care of. Every mechanic has this pendant and the female plugs with them. The female port on the elevator controller is wired so that the male port of the pendant safe button only has power when the inspect circuit of the elevator is energized. With it wired this way the elevator can not operate on automatic. This is performed by using one of the female ports that is wired into the elevator controller as the run circuit supply before any safety string device and JUMPING it through a port of the male plug to the inspect circuit of the female port. The only way the female port can supply our pendant with power is if the car is turned to inspect.
We tested out a couple of versions of pendants with individual momentary toggle switches that would jump out each safety device sos, gov, stop, buffer, pit, switches. These were a little complicated and time consuming for each controller.It was then decided that if the technician could determine that the unit would run on inspect with the pendant, the technician SHOULD be able to determine which safety circuit was at fault. This makes it a lot quicker when performing the annual and five year testing. We only have to plug our pendant into our port.
The pendant that is mentioned above has worked out well for us. I would love to hear any other ideas, as I know this is not the best idea.
An old company I worked for 30 some odd years ago had a similar plug installed in the in car inspection station. Circuit would only work when car was on inspection, but when on inspection we could run with pendant with the doors jumped out. Great for re-hanging doors. Alas, later code requirements made us pull them all out.
This seems like overkill for a piece of wire.
http://www.wurtec.com/asp/product.asp?item=15-505
Wonder what the cost would be? And if you had to set compounding on an old Open loop Otis, you need about 3 or 4 of them to do it properly.
http://content.martyweil.net/Elevator%20World%20Advertorial%201.pdf
Question? (Which I havent seen addressed in code) IF ALL DOORS AND SAFETY FUNCTIONS are being monitored in software, without ANY HARDWARE RELAYS. Can you prgram your own software jumpers with their own time out timer variables programmed into the control?