Yaskawa SigmaLogic - Manual (Page 25)

7.1 Battery Installation
23
7 Battery
7.1 Battery Installation
A 3.6V lithium battery must be used to retain SRAM data in the
controller when the power is off. SRAM will last for one hour without
the battery connected. The battery power can be applied through the
battery connector (CN14), or through the I/O connector (CN13 pins
7[+] & 32[-]). The battery is necessary for preserving retained
variables, absolute encoder offset, and real-time clock data.
To initialize the non-volatile memory and clock settings after a battery
is attached for the first time (or any time backup power has been lost),
use the following procedure.
1. Power off the SigmaLogic™.
2. Set the “INIT” switch (S11) to ON.
3. Power on the SigmaLogic™ and wait for the “RDY” LED to
illuminate.
4. Power off the SigmaLogic™.
5. Set the “INIT” switch (S11) to OFF.
Option Case
(snaps off unit)
Screw
Battery
Metal plate for
connection
Battery Holder
1
2
3
+
-