Elevator Forum

i would say it is time to get rid of that dangerous door operator, replace it with a kinematics or mac 104 board. when the scr shorts the doors are un...

thanks for the reply, I kind of figured this is one of those systems that has an inherit bug in its operation, and we will just have to live with it.

Regarding the brake IGBT, If the IGBT is damaged make sure you check the resistor in the circuit. If you just replace the IGBT the first time the brak...

The Omega 1000 USD,DSD, and Access limit switches are no longer manufactured. I believe the switches are hall effect sensors, with +24volts to the red...

It would be ok to add your own resistors on a breadboard, just replicate the existing circuit exactly and you should be fine. seems that you open alot...

The s5 board is the timer,display board. The board is set up for only 8 landings. If you have a group with more than eight landings then there will be...

hey lift-tech, I was also curious as to why the we lost the display on a couple of starters after a power spike in long beach. We replaced the drives ...

I looked into this at a job I was at recently, there are quite a few signals passing through the s5 board that are related to the group. Hall call pow...

I recently had to implement alternate floor fire service on a 1230mp. If you look at the print for the fire service you will see the main fire service...

The key to slowdown is to drop the 3f relay, then the 2f relay, and finally the 1f relay sequentially. Let's take the car call slow down as an example...