Milacron 486 Valid Power issue

This is just a re-hash of the events regarding the power supply and battery issue we had with MP#5.

To summarize:

The symptoms we encountered were " Error E047" or no screen at all.

Initially, there was no screen at all. I changed the power supply with one from MRO to which it was not known to be good or bad...just another one. That brought up the E047 error.

Then upon checking power on the backplane at the test points, one of the +12 volt signals was not present.

We obtained another known to be new power supply and installed it and the +12 was then present on the backplane > however > the E047 would not clear.

We then replaced the back up lithium 3.6 volt battery and upon restarting the control, system booted as normal.

Checks of the analog circuits indicated that transducers were reading accurately at that point and we started the press for operational tests and production.

To summarize again:

1. battery must be good!
2. power supply must have all voltage signals present and testable on the backplane!