What should I do if the battery of Yaskawa absolute servo encoder is broken and the position is dropped

If you change the battery, there is a gray box on the encoder cable. Click the two buckles on the box to open the battery box and change the battery.

There are two types of encoder wiring harnesses. With or without adapters, you can plug and unplug them directly after the power is turned off. If not, you need to use a small screwdriver to loosen the wiring harness at the motor end. The plugs on the driver are all plugged directly after power off.