While powering up my 1991 Saeillo Mach III with FANUC OM-C, a 911 alarm appeared, so after studying all the posts I could find about the problem, I replaced the batteries and cleared memory. I have the paper copy of the parameters, but I'm unable to input them. When I power up the machine I get the 100 alarm and axis alarms. I can go through the different offset pages and can input data there, but the parameter and diagnostic pages don't allow input. Some posts suggest tracing the E stop circuit, which I have done until the Honda cable going to the I/O board, then I get lost. The circuit is good that far. I have tried the E stop in and out with no change. Do I need to get to MDI mode? It is showing AUTO, and I haven't been able to change it. When the machine is working I have the NOT READY alarm until I release the E stop and the hydraulics power on.

Thanks in advance for any wisdom you can share.