基于PLC的小型冷库自动控制系统改造

摘要

A small refrigeration storage is reconstructed in the control circuit. The original common control circuit is replaced with PLC control circuit. Having been reconstructed, the new control system has automatic and manual functions. It is added security and interlock functions. It also can alarm automatically. It is totally upgraded in function, stability and security. After being reconstructed, the performance of refrigeration storage is tested.%改造小型冷库的控制电路，把原来的普通控制电路改造为PLC控制电路，改造后的控制系统有自动和手动功能，增设安全保护和互锁功能，还能自动报警，使冷库的功能稳定性和安全性得以全面提升，最后对改造后的冷库进行了性能调试。