设计了基于CAN总线的地址编码器，通信总站的数码显示电路，控制继电器电路，LNK501开关电源芯片电路。
Design the CAN bus address encoder, communication terminal digital display circuit, control relay circuit, LNK501 switching power supply chip circuitry.
应经常检查高压直流电源内电流继电器，时间继电器的整定值是否正确，控制是否灵敏。
We should always check the high voltage DC power supply within the current relay, time relay setting value is correct, control is sensitive.
合上电梯供电开关，再分步控制柜内各控制回路电开关。检查所有电源电压和相序(相序继电器)是否正确。
Turn on the power switch, then turn on the switches in controller. Check phase and voltage.
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