青岛远洋船员职业学院学报

以Carrier 69NT40-561冷藏集装箱制冷机组为例，通过对制冷系统、控制电路及运行模式的深入分析，当控制器出现故障时，可借助控制电路进行适当短接和旁路操作，以维持制冷机组的持续运行，从而确保集装箱内货物的安全，有效避免货物损失。

Taking Carrier 69NT40-561 refrigeration container refrigeration unit as an example,based on the analysis of refrigeration system,control circuit and operation mode,when the controller fails,the controller can be appropriately short-circuited and bypassed through the control circuit to maintain the operation of the refrigeration unit,so as to ensure the safety of goods loaded in the container and avoid cargo damage.