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ac motor inverters
| ALPHA 6900S ac motor inverters for Crane | |
| Introduction | Adopt integrated mode of motor drive and crane logic-control, remove the PLC in original system, decrease possible fault point, simplify system's wiring, easy and flexible debugging, represent the future developing trend of crane controlling; integrated years of experience in crane industry, design senior advanced & general used crane facility's control and safety logic, include timing cooperating, slip hook, etc, offer perfect solution for matching customers; special fixed-length design for material feeding system in mining, metallurgy and road construction industries to ensure safe and stable controlling |
| Technical Features | 1.Power range: 5.5kW ~ 500kW2.Wide input voltage range: 304 ~ 456V, voltage fluctuation: ±20%3.PLC Special brake control program without PLC4.Unique anti-slip hook brake control system5.Wide range voltage design is more suitable for execrable power circumstance6.Stepless speed adjustment to make the hoister's start and braking without impact, running stably, 7.more comfortable8.Soft start/stop, reduce the attrition of gear, rack and brake to extend the components'working life9.The variable frequency system includes safety protective function for overvoltage, undervoltage, 10.overcurrent and overload, etc11.Pre-overload warning system and overspeed for light load function, operator gets prompt when the load is out of range, allow overspeed running in a certain range when the load is smaller than a setting value |
| Application | Hoister, Crane, Tower crane |
ALPHA6900S New products ac motor inverters