Hi all, company took on a job with a Kone KCM831 Hydro, 2001. Building lost power and car never came back on. I have my safeties, doors, Thermals and overloads, my 24v and 5v feeds to car and hoistway. I cant run on inspection, E1 shows a 0041 Emergency Brake fault, which makes no sense to me since its a hydro with an old Allen Bradley soft start. I also dont have the "shaft communcation ok" LED.

Any help would be greatly appreciated, I have prints but no real manuals or guides. I have a fault list but I am not even 100 percent sure its for this. I went though the car top board with a few safeties and door inputs. I havent gone through the COP to see what the condition of that board is. I havent found the LED on the prints for Shaft Communication to figure out what feeds it, is there a serial connection to a board in the shaft maybe?

If its that old you might have lost your Dallas chip. If that's the case you'll need a new one then have to go back through and check your parameters are set right. I had one go out on an kcm831 (ecospace) and was dead in the water, the parameters telling it which drive it had had changed.


Also check/replace your battery under the cartop board.

Thx for the reply, im going back today. Ill replace the battery first thing. Any chance you have a manual on these?

Make sure it's set to be a hydraulic and not a traction.

Agree with BRG check menu 1 sub-menu 3 and make sure it's set to anything but 0 for the time being to see if you can get the car to run on inspection. A 0 means not a hydro, a traction. I've experienced too many times when a "fast fingered freddy" has gone in and changed a parameter without realizing it and when the power is cycled, on the KCM's that's when parameter changes are put into effect, like a power outage. I believe there's about 7 different hydro options for sub-menu 3 that are for hydro's depending on the type so that can be determined later if that's the issue. I have some info on how to perform the startup of the hydro's if you want to PM me but not alot other than a few versions of wiring diagrams.

Thanks guys, I got a hold of a manual that showed how to navigate and that was the first thing I checked, it was set to 1 which I believe was KCM831 hydro, i changed it around to see if anything changed but i got nothing. I changed the 12v 7ah battery on the cartop as well. Everything leads me to believe there is a an issue with the LCEADDON board, im going back again with that and the car top board to see what I get.

Unplug the battery if you leave the line out or it will go dead again. Some very old software won't have the option to bypass a dead battery

Car is back in service, had to change the LCECPU, Drive board, and Cartop board and update the software. Finally got a successful learn of the hatch and it would hold the parameters correctly. Talk about diving headfirst into the KCMs.

They are nothing more than tin can ticking time bombs. They run good for awhile then....