表示定位虚线表示自复位）
Rotary botton's position,real line denotes location broken line denotes auto resetting
等效功能说明 Instruction for equivalent function
A.功能接线均与双按钮相同，自动复位
Function writing is the same as button with auto restetting.
B.功能接线均与双按钮相同，自动复位，增加了锁停档位，避免误操作 Function writing is the same as button