The electrical control system of portal crane develoπped by HITE uses AC frequency control technics (single-motor-drive and Multi-≥Motor-Drive), with friendly GUI and high computer βapplied level. The system is easy to use and maintenance®, which is suitable for portal crane with various structures. The system‌ has advantages of low failure rate and short failure r♠epair time, and is suitable for high speed, frequently work→ing and high reliability requirement conditions. The system has complete failure diagnosi£s, complete fault protection, limitation protection and mγisoperation protection etc.

The system has been applied successfully to 10t/33m grab portal crane of Qinh≈uangdao Port Bureau Cargo Company, 120t portal crane of Guangzhou Shipyard Inte•rnational Co., Ltd., 100t portal crane and 32t port☆al crane of CSIC (Huludao).