The most common issues with traditional transformer, rectifier and capacitor power supplies are either rectifier failure, or more commonly the capacitors drying out and going higher internal resistance. That means that the circuitry may seem OK until a higher current is pulled and then the voltage drops to a level where the processor resets. Watching the controllers power or reset LED can be a clue there. The fudging of a standard capacitor onto the terminals is a cheap and lazy fix, but replacing the capacitor completely is a better option. Losing a phase could mean a blown fuse or bad connection.
Came to comment that with these miro's or ecci units the capacitor is what normally fails, I've replaced several on these units in the past. You can always put a Omron 24VDC 5amp one on as well. But for me the capacitor was the way to go. Happy fixing!
@@bigclivedotcom hey I'm thinking it's the cap for two reasons, I've changed several in the past that had low values and didnt read at all in tolerance. Second in the second clip at his next call it shows that someone put another cap in parallel indicating the orginal one had failed. Common on these Miro/ECCI units. At least in my experience with them.
From what you are saying it does sound like they "lost" a phase weather it was from a blown fuse or equipment failure.... If they said it was in the building and it was a fuse it could of been in the main switch if it is BEFORE the metering cabinet, which it looks like here and it is generally sealed by hydro as it is before the meter, or if there is a transformer room there could be a high voltage fuse inside that room that blew but again is accessable ONLY to hydro. Question, this looks like an older building, is the elevator supply 600V or 208V ? I wonder if its one of these oddities we have in Hamilton where there is 120/240v single phase service for the apartments and a separate 600V 3 phase service for like just the elevators and maybe another motor or two elsewhere in the building.. A lot of older buildings did this and it could cause weird things to occur if you lost one supply but not the other.
This was a 208V supply, I have had weird power problems down in the Barton east end before. I also think it was a fuse because the super down the hall could hear the bang when they lost power, my first thought was a can on a pole outside the building.
@@MQElevators Definitely sounds like one of those pole top expulsion fuses blew, you have no doubtedly heard one or seen one go off I'm sure, they make one hell of a bang. A lot of old infrastructure down that way as well, things are starting to fail and cause problems now, Alectra is spending millions annually trying to upgrade and modernize the entire city.
Sorry third times a charm, but those door operators like to fault during power interruptions especially the 120V ones not so much the 240V ones. Anyways all stop now.
The most common issues with traditional transformer, rectifier and capacitor power supplies are either rectifier failure, or more commonly the capacitors drying out and going higher internal resistance. That means that the circuitry may seem OK until a higher current is pulled and then the voltage drops to a level where the processor resets. Watching the controllers power or reset LED can be a clue there.
The fudging of a standard capacitor onto the terminals is a cheap and lazy fix, but replacing the capacitor completely is a better option.
Losing a phase could mean a blown fuse or bad connection.
Ahh, this is why UA-cam recommended the video 😉
Came to comment that with these miro's or ecci units the capacitor is what normally fails, I've replaced several on these units in the past. You can always put a Omron 24VDC 5amp one on as well. But for me the capacitor was the way to go. Happy fixing!
@@DJSubAir With those old power supplies a new cap will probably outlast a modern switching power supply.
@@bigclivedotcom hey I'm thinking it's the cap for two reasons, I've changed several in the past that had low values and didnt read at all in tolerance. Second in the second clip at his next call it shows that someone put another cap in parallel indicating the orginal one had failed. Common on these Miro/ECCI units. At least in my experience with them.
Most likely it was the capacitor as the voltage seemed to be there when I was checking it.
Long time since i saw those inverters here in Sweden. Almost everyone is yaskawa L1000 now.
I got the new years week calls.
Great video!
Thanks. Hope there isn't too many calls.
Have a great Christmas brother form England 🏴
Merry Christmas
Slick idea on using that power supply
Glad it worked
From what you are saying it does sound like they "lost" a phase weather it was from a blown fuse or equipment failure....
If they said it was in the building and it was a fuse it could of been in the main switch if it is BEFORE the metering cabinet, which it looks like here and it is generally sealed by hydro as it is before the meter, or if there is a transformer room there could be a high voltage fuse inside that room that blew but again is accessable ONLY to hydro.
Question, this looks like an older building, is the elevator supply 600V or 208V ?
I wonder if its one of these oddities we have in Hamilton where there is 120/240v single phase service for the apartments and a separate 600V 3 phase service for like just the elevators and maybe another motor or two elsewhere in the building.. A lot of older buildings did this and it could cause weird things to occur if you lost one supply but not the other.
This was a 208V supply, I have had weird power problems down in the Barton east end before. I also think it was a fuse because the super down the hall could hear the bang when they lost power, my first thought was a can on a pole outside the building.
@@MQElevators Definitely sounds like one of those pole top expulsion fuses blew, you have no doubtedly heard one or seen one go off I'm sure, they make one hell of a bang.
A lot of old infrastructure down that way as well, things are starting to fail and cause problems now, Alectra is spending millions annually trying to upgrade and modernize the entire city.
sucks being on call but the paycheck next week will be nice. might be able to afford the 40 pack of timbits 😎
Love them timbits
A man has to do what a man has to do when it is dinner at the outlaws
I'm also on call lol only one for Xmas eve
Good work happy holidays
Happy holidays, hopefully its quiet for you.
Sorry third times a charm, but those door operators like to fault during power interruptions especially the 120V ones not so much the 240V ones. Anyways all stop now.