Elevator Forum

sorry for the delay, i switched companies after 27 years, the guy who took my place replaced the drive and all is well,

also p24 turns to p24g on one of the poles. that 3 pole switch has caused alot of prolems for elevator guys. turn off the switch, to check something, ...

comparator troubles, dictated velocity does not match actual velocity. 27. position encoder lost while running. 25. if the car does not have a brake s...

hey Susan, are you a mechanic, or are you a elevator inspector for the city of los angeles. the name rings a bell. anyway, hope you find the forum hel...

johnny, you seem to be one of the more knowledgeable guys on the forum. Good advice, if this controller does indeed have this type of leveling/steppin...

regarding danzeitz comment of not being able to communicate from controller port> I have been on more than a few jobs where it is impossible to com...

first thing i would do is to check every input in the cop terminal strips that feed the processor input wiring. does the car run on inspection? if not...

In the old days, you learned a little from the mechanics of the day, if you wanted to know more, you had to study on your own, not just a couple of ho...

is it a hi speed or low speed RSN the fault indicates to check the circuit between Z13 an F12 on the hi speed, and G to L6 on the low speed unit. I ha...

Just be careful about disabling the brake switch input, I recently was sent to a non contract otis 311 machine, one car was down, that was the car i w...

never look at the sticker, always look at the little notch at one end of the eprom. top left pin next to notch is pin 1 when checking eproms, the chec...

sure sounds like software is corrupt or power supply is still bad, no ac riding on the 5 volt power supply, should be less then 10 mv ac, did you inst...

Turns out the board was the problem, installed an upgraded board, although i did not see what the upgrade was, looked the same to me. all is well now....

correction, sorry about the rvd2 input on a prior post, that is the detector edge input, I thought it was similar to the RV input on earlier lrv3 unit...

come led is fine, no problem with fcb boards. coms led indicates a problem communicating between cars. everything on the tool indicates no problem exc...