7211: DC 连接电路:电压断线检查动力线DC link circuit: Voltage breakdown (check the power line) Info(REAL): Low voltage limit 7212: DC 连接电路:电压断线 急停中断 DC link circuit: Voltage breakdown -> Emergency-Stop interrupted Info(REAL): Low voltage limit 7213: DC 连接电路:时间常数决定激活动力线 DC link circuit: Time constant determination with activ power line Info(REAL): DC link voltage 7214: DC 连接电路:电阻过热(太多动力线失败) DC link