R300 inch/crawl warning signal

[IFixit]

I have a 1997 R300 that randomly sounds the inch/crawl/run warning signal without letting the machine inch/crawl/run the next time the buttons are pushed... without repeating the alarm again each time the inch buttons are pressed, and again instead of letting the machine operate. This also happens while in the plate hanging program as well. Sometimes hitting the 'stop' button and then trying to inch the press will let the operator inch the press normally after a single warning signal, but even that trick seems to be failing as time goes on.

Is this a timer? Relay? Contactor? PCboard that can swapped with another?

THanks for any suggestions

 

[printerpete]

I have a 1997 R300 that randomly sounds the inch/crawl/run warning signal without letting the machine inch/crawl/run the next time the buttons are pushed... without repeating the alarm again each time the inch buttons are pressed, and again instead of letting the machine operate. This also happens while in the plate hanging program as well. Sometimes hitting the 'stop' button and then trying to inch the press will let the operator inch the press normally after a single warning signal, but even that trick seems to be failing as time goes on.

Is this a timer? Relay? Contactor? PCboard that can swapped with another?

THanks for any suggestions

Have you checked there is no oil error when the siren rings, or does it not have any other error when it does it/

 

[IFixit]

Usually, the lights won't even be on if it's there's a low oil error.

 

[Francois]

In the R300 there is a "safety bell" board whose function is to allow and time out the inch and run circuit. Sometimes when it fails it acts just like that.
It needs to be replaced.
You can call manroland or controlgraphicsusa for the board and more info.