In the world of Fanuc, Keep Relays are the machine’s permanent memory. Unlike the volatile bits that reset when the breaker flips, these are the "Exclusive" secrets of the builder. K12.3 wasn’t a Fanuc standard; it was a custom safety latch the builder had programmed into the ladder logic years ago. He changed the bit to The contactor in the cabinet clicked—a sharp, mechanical
However, a common pitfall in shops and integration shops is the mismanagement of these bits. This article focuses on a single, golden rule: fanuc keep relay parameters exclusive
Change "PARAMETER WRITE" from to 1 . The machine will likely trigger an "ALM 100" (Parameter Write Enable) alarm, which is normal during this process. Access the Keep Relay Screen: Press the SYSTEM hard key. In the world of Fanuc, Keep Relays are
Exclusively used for PMC management software data and should not be used for custom machine sequences unless specified by Fanuc. He changed the bit to The contactor in
Change the bit to 1 or 0, then immediately return to the Setting screen to set PWE back to 0 4. Critical Documentation