Is there a down direction timer I am missing? Controller wiring diagram shows RX9-3S7021C and RX1-2S7592J on the data tag. Closest prints I have are RX2-4S7021C. I have contacted UNITEC and they do not have my exact print, but refer me to the RX2 print I have. They also told me some more interesting info, as the serial number 33267 and sales number 653153 show this elevator to be installed in Canada. We are far from Canada. This is in a power plant in Central Texas.
After searching numerous similar prints I have found the other area I mentioned. This is in fact a double wound coil. The other area shows it to be with the leveling switches, and its listed as "buck-out" The leveling switches are DPDT. I have ordered rebuild kits for them. These are explosion proof switches so replacement switches are many weeks out. Once rebuilt I am hoping the problem is fixed. Job is around 4 hours away.
From what I can decipher, once the car hits my down leveling, a set of NO contacts on my down leveling switch, (or perhaps on my up leveling switch) are hitting prematurely causing my DG to "buck-out".
I actually got out one of my old books from NEIEP that had buck-out listed. That term isn't exactly used in modern elevators now days. This is my last OTIS at this facility, hoping to be modding next year.
I have a variety of controls on this job site.
Galaxy, Otis, Miprom21(recently modded), EC, ESCO, GAL Relay Logic, and Miprom 1's. Along with 5 rack and pinions (Alimak and Champion)
Word to the wise, if they are the ex proof switches, be sure and put the same cover that came off, back on. They are milled individually and have minor differences although they look identical.