I was running the feeds back and forth checking alignments when the machine just died. Only the feed motor was running at the time. It appears to be a problem with the main logic relay. I verified that I have all three phases present, and that all the motors run when I activate the contactors manually. The fuses for the 48-V logic and 24-V lamp supply appear good. My next step is to check out the two logic relays that I can see. The problem is that the wiring labels are hard to read because they are buried at one end or the other. So, before I disconnect relays, I'd like some idea of what the relays are doing.
In all my years of owning and following Aciera F2, F4 and F5 mills, I have never ever encountered a wiring diagram. The manual has nothing. Do diagrams exist? An F4 diagram won't help, because it really has no relay logic. The F5 has various interlocks that the F4 does not, such as an E-stop if one tries to move the vertical head support arm from the resting position, or if one tries to activate the spindle lock (although the switch in the transmission did not seem to activate the logic when I tested it this morning - maybe that's part of the story?). There are no labels on the transmission switch wires, hence the desire for a wiring diagram.
In all my years of owning and following Aciera F2, F4 and F5 mills, I have never ever encountered a wiring diagram. The manual has nothing. Do diagrams exist? An F4 diagram won't help, because it really has no relay logic. The F5 has various interlocks that the F4 does not, such as an E-stop if one tries to move the vertical head support arm from the resting position, or if one tries to activate the spindle lock (although the switch in the transmission did not seem to activate the logic when I tested it this morning - maybe that's part of the story?). There are no labels on the transmission switch wires, hence the desire for a wiring diagram.