ALPHA 6900 variable frequency inverter

Product Description

variable frequency inverter
ALPHA ***0 Special Inverter for Crane
Adopt integrated mode of motor drive and crane logiccontrol, 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 Feature:
1. Power range: 5.5kW ~ **0kW
2. Wide voltage range: **4 ~ **6V, voltage fluctuation: ±*0%
3. PLC Special brake control program without PLC
4. Unique anti-slip hook brake control system
5. Wide range voltage design is more suitable for execrable power circumstance
6. Stepless speed adjustment to make the hoister's start and braking without impact, running stably, more comfortable
7. Soft start/stop, reduce the attrition of gear, rack and brake to extend the components'working life
8. The variable frequency system includes safety protective function for overvoltage, undervoltage, overcurrent and overload, etc
9. 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