Home Forums General Discussion Technical Questions Gen 2 mrl shutdown

Hi guys. Got a gen 2 that's shut down.
Mcss shutdown codes are
2703
2811
2720

Mcss monitor status is
NRD SHD INA IDL

Ocss event log is
Cpu stack warn
Software reset
Proc exception
Mcss msg timeout
Mcss msg sio error
Ring 1 msg ck sum
Ring 1 msg sio error
Car was nav
Front dtc
Delay car prot
Spb com error
Rbi com fail
Spi bus error

Dbss log is
900 mcss timeout
913 mcss warning
000 power on
303 vac under
004 power down
304 vac imbalance.

I also saw traction loss on one of thf menu status screens.
Car will not run on inspection and the car is in the middle of shaft in between floors
What do u guys think ?

Also the controller is on top inside of shaft .. how can I move the car up to get to controller ?

I think the MCSS board was bad,or fuse burned out.You can release the brake by one key turn on and press a red button on the little board.

I think your glad no one was in it.
(Sorry...but it's true)

Firstly is ocss nav? And 2703_> drive shutdown?

Ocss car monitor is
A-** NAV M*

All fuses check out good. Unless I'm missing one sum where
I have no lights on safe 2, safe or gds
My ring 1,ring 2 , ocss, rsl, mcss, dbss, dcss lights are r blinking fast

My LD1 light is steady and LD2 is blinking fast and LD3 is blinking slow
Main line power checks out good and PSS power supply is green lit 24v

My mcss shutdowns are 2703 drive fault and 2956 PAL unsafe to run
2111 gateway fault , 2113 REM not configured 2720 ACP low ac trout(2720 not listed in fault paperwork write up)

My dbss log is
913 mcss warning
900 mcss timeout
304 VAC imbal
303 VAC under

Which board is the mcss board ?

Also my ucm n c relays r picked.

Is it normal to not have a ucm and cpu reset button on thf small board in thf door jam ?

Correction on the ucm and c relays. They r not picked

Try M 2231 then hit reset button

Thanks drip. But I have done that power on reset many times and still shutdown.

The controller is in the hoistway? WTF? What state are you in again? So what do you have to work with, just a Service Panel Board mounted in a jamb or something?

Thank god for the regulation state!

That's correct dirt. U need to b on top of car with hall door closed to get to controller

That is a damn shame. And I thought the MRL hydros with the controller in the jamb was a bad idea. (Those aren't legal here either). Is it at the top floor or bottom?

And what is the advantage of that as opposed to turning the controller around 180 degrees and putting a closet right there? Besides the cost of a door.

I guess this way the customers don't have to look at our plumber's cracks while we work in the controller closet. If only there was a dedicated room to put the controller in...

if you did a hard reset not just power off then might have to get the Otis guys with there construction run button to move car to access controller there is a known relay problem also check your gov switch on side of car might be it clipped door lock an tripped switch i know from personal experience of picking lock in flight an tripping gov on car

What was your course of action and what did the problem end up being?

At least your car wasn't at the top floor when that happened. So you didn't have to carry 3,000 pounds of weights up the steps to load the car so it would drift down when you released the brake to get to the controller. I agree with dirt, these should be absolutely illegal. Ridiculous design fueled by greed.

Anyhow, if in that situation you don't need Otis to come out with run buttons, under the service panel board there is terminal strips with all important terminals needed. Safety string, construction run terminals, even terminals to jump more batteries in parallel if the batteries in the controller to lift the brakes are dead.

Good morning, has anyone worked on a conquest lift - have an error code (there are no floor values set ) ?