Elevator Forum

Originally Posted By: Vsec The drive was swapped and the same escalator that runs in the down direction still faults out with a over speed fault telli...

Originally Posted By: Vsec The drive was swapped with the unit next to it but not the resistors. There are four resistors that total up to 27 Ohms, th...

Originally Posted By: N.W.GUY When you de the ascending car test, assuming the car is completely secured, you'll need to manually hold open the brake ...

Originally Posted By: john jay you may have a travel cord issue. If it happens at the same spot in the hoist way. When ever I find I might have a tr...

Originally Posted By: Johnny When you swapped the drive, did you also swap the resistors? When the load is negative, the load driving the machine, the...

Ok, with the motors generally up the top and the direction going down the esc will have the biggest load trying to pull the motor speed off its s curv...

Originally Posted By: sbrmilitia Originally Posted By: uppo72 Originally Posted By: sbrmilitia Heads up as a apprentice you are not allowed to carry y...

It sounds like there is a type of old style landing call service zoning issue on old relay logic lifts. Hall calls operated via a zone ring and unless...

Originally Posted By: sbrmilitia Heads up as a apprentice you are not allowed to carry your own tools. A small pocket screwdriver is ok, a pencil, and...

Originally Posted By: E311 Hopefully the 3 phase feeds for each controller come off of the same switch gear. Each controller will use a main transform...

Originally Posted By: E311 Good find, phasing of each car in the group was somthing that used to be done regularly, I still did that when I was in the...

Nm, is this a serial data lift? Is the HC-CIO the electrical isolation for the lift computer, or just the button module? My thinking is, if it isn't s...

I would still want to know if the loom going to the door board is ok. Take the board to the motor room and wire it directly there to see if the fuse b...

Yep this arrangement is very standard on MRL lifts, particularly car doors that are pretty flimsy. We had a stock standard procedure that worked, ie w...

Not sure but I wonder if dach is the + and dacc is the -. As to the fuse blowing, it is a little weird but I wonder if you've got a dud new board(howe...