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Shipbuilding

Customer Case

The 200 – ton crane at Chongqing Shipyard

This electrical system is composed of “PLC + frequency converter + touch screen + DP communication”. The PLC is from the Siemens S7 – 300 series, which realizes the sequential logic control of the overall machine’s operation. The Japanese Yaskawa…

The ME100 + 100/10 shipbuilding gantry crane at Hongde Shipyard

This system is controlled by Siemens S7 – 200 series PLC. All mechanisms are speed – regulated by G7B frequency converters with digital control. The hoisting mechanism adopts closed – loop vector control. The gantry mechanism uses dual – frequency…