Is it a 1:1, 2:1,or 4:1? I had problems with a 2:1 and heard of similar problems in the 4:1 cars fixed it by adding 300lbs to the car sling in "bread loaf" weights

I'm also in US we may have different versions of the ECO.

Ecodisc motor roped 2:1, Has Tacho, LWD, 61U/N, 30, 71U/N Lift has run ok for years since installation, at first expected sluggish proximities when this didn't resolve issue changed Tacho even though it seemed ok, finally had drive checked but still the same issues.

Now pulling my hair out !!!

The one I had stated doing it about 2 years after install... I feel your pain.

When you did a shaft learn, did it throw any faults after the learn?
If not then your shaft setup is correct.

Have you checked rope slip through drive display?
If that checks out ..

Have you checked your brakes?
If that checks out…

I would change the CCBN.

If you have changed the cigar switches, magnets, and tac then the only thing that makes sense to me is to change the car top board since that’s what’s transmitting the signals to the controller.

I had this situation with Kone Monospace, drive v3f16l. The reason was in the v3f16l. After I changed the drive with another elevator, the problem has gone there.
I guess, if you change 1_12 to 0, the cabin will not move to the correct level after stopping

Have you changed your main drive contactors? Or changed your drive unit?

Hi All, thanks for the suggestions, the drive is ok we have had this running for two days on a Kone test rig without fault,
Adding weight to the car doesn't really make sense to me as the car is running through in both directions, so i would assume it will make it run through worse in down.
Not changed contactors but they are energising and deenergising correctly and have positive activation of all contacts, no voltage drop or or high current demands.
From the schematics it appears that the car top board for the proxi switches is just a pass thru to the trailers so i will go back today and bridge this direct to trailers, but we do appear to be getting the signals correctly to the controller as it is but at this point anything is worth a try.

Completes a shaft learn without fault.
Manually checked rope slip and we have none, ie line on sheave and rope, run up and down a few times and they still correlate.
Checked brakes appear ok, but again do not see how an issue here would cause overtravel, under yes if it was not lifting.

Not noticed a parameter to check slip through the display, can you tell me the param ?

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I've once had an issue with emf being transmitted through the rails and causing the proximity switches near the top level to prematurely activate. Seems to be irrelevant to your issue but could be worth a thought.

So just an update guys, been back today and temporarily rewired Proxi switches direct to LCECPU cutting out possible CCBN Board and trailer issues, but still the Same ?

Can anyone advise of how the signals are processed thru the LCECPU and then the signal output to the drive, im assuming there's something wrong with this process ?
Is there a way thru the MAP Panel of seeing the state of the LCECPU outputs to the drive.

A shot in the dark. Is it possible that the magnetic tape has magnetized the metal to which it is attached? I had that happen on a Kone Hydro. used some tape at each end of the magnet.

Thanks but i cant see it with what we have done today we seem to be getting the correct signals to the shaft panel, as soon as 61U/N sees a magnet we get 15v at the shaft panel connection, XC115 & 6 and loose it again as soon as it drops off the magnet.

What drive?

Drive is a V3F16L, had it running on a test rig without any issues.