battery backup

[Daniel Boone]

Is there a battery backup for a VMC15 for the cards, because I keep getting a memory error, and have to go in and clear memory and reset all the parameters.

[Neal]

There is a lithium battery on the 1400 CPU board. That is the only battery in the Fadal control.

Neal

[scadvice]

Neal,
What is the proceedure for changing this battery?
Steve

[alex gitzel]

I think you just take the cpu out and swap the battery then reload the memory as usual.if you have a memory expantion board take it off and then zero the memory and see if it helps,those boards fail a lot and cause memory issues,if you are concerned about the battery take out the cpu and test the voltage the battery looks like a AA battery on the old ones and a round watch style on the new ones.the voltage is listed on the battery,i think the AA one is 3.6 vdc.

[scadvice]

Alex,
Thanks for the info. My battery appears to be the round one and is not giving me any problems, I just felt it might be a good idea to change it as the machine is a 1996 and sat in storage for close to 8 years. I'm sorry but what do you mean by reloading the memory? The cpu is a 1400-4
Steve

[alex gitzel]

memory as in programs,parameters,offsets and backlash and setto to reset atc.

[zcases]

On a 1400-4 board, there is a battery test button and indicator. (the lower of the two push buttons, top is a reset).

So, I know I can meter the battery but, does a red light indicate "good" or "bad" on the battery test? hmmm

[Dyad1]

We had a 1990 4020 which was sold last week. It still had the original battery with no problems. We bought a replacement battery many years ago but never put it in. Wish the batterys in my cars would do so well lol.

[Rilerenn]

yes vmc15 has a decent battery backup and it can last for 3 days and how old the battery is it will only get discharged and it will work very fine and it will not be out of order