I doubt that the phases are reversed and the monitor is doing it's job. The hoist is being used in the same location and power connections as before. And given that the hoist functions correctly with the monitor jumpered out, I'm leaning toward the monitor being broken. The replacement part is...
To waross
Here are the specs:
Make: Jet Equipment and Tools
Type: 2 Ton hoist (not 2.5 ton)
Manufacturer #: 2SS-3-10
I don't know the country of origin.
To sacem
It must monitor more than just if the phases are energized. When I jumper out the control voltage going through the 3 phase...
Waross
Thanks for the reply. That is pretty much what I assumed it did, but I could not find any info on google etc. It is not translated from another language, it is called out as a three phase inspector on the electrical diagram.
I was assisting our facilities person recently in trouble shooting a 2 1/2 ton hoist that was broken. I determined that the three phase inspector was the problem. I am familiar with three phase systems and used to design the electrical control systems for large industrial clothes dryers, but had...
