Elevator Forum

This doesn't look like a Miprom 21. I have only seen this arrangement on a Traction Mod with the generator still in use, or on a hydro in a Government...

Something to check. Make sure the car doesn't move when it is heating the oil. Had this same problem on an MPH, had to readjust the valve sizing.

need to see a print. do you have one?

Need more information. Are you considering reusing a geared machine,versus replacing it with a gearless? Geared machines are limited as to speed, usua...

What, the guy doesn't think 88 years is getting his moneys worth?

One other note, the fault was generated because the computer detected a voltage at the motor when it should been at floor level and the run completed....

the fault code says that the fault was generated to the computer by the 3rd party Drive. It was reported to the MCUYAS board. So very vague as to what...

If the elevator loses hall calls it will service different floors that are programmed in the field adjustable parameters. That would explain the rando...

What fault code and sub code is being generated? Is this an AC or DC unit? What is the LDW %, in menu 5 #1.

I guess I would start looking over the connections. Wiggle the input and output board terminals, unplug and plug all the boards into the card rack inc...

Montgomery had a muffler that would break apart internally. Pieces would get into the system and wreak havoc. The fix was to add a screened clean out ...

Glad to hear it. It must be those pesky Gremlins again. It would be hard for that unit to run with the ADC at 2.57 unless all the associated parameter...

Yep aux M contact or a bad relay, or a bad relay pilot bd. Check sheet 2 of the prints for the BCI and BCX circuits. You also need the drive ready lig...

First off, 2.57 is too high. Lower ADC to2.5 volts, then check to make sure the ME Base speed is the same RPM as the Motor Nameplate, in the Drive and...

The fault is motor too hot. The motor thermister is active, or a loose connection are possible causes. It will return to service after fault is cleare...