ICRAS AFD is a high performance adjustable frequency drive with build-in ICRAS load sway control system. Implementing load sway control into an AFD drive is optimal solution
- No need for extra computing hardware for sway control calculation
- Optimized operation of motor control and sway control algorithm during starting and stopping of crane movements
- No data transmission delays or disturbances
- Very fast calculation cycle times (speed reference calculated 200 times per second)
- All parameter settings done using drive keypad – no need for programming tools and computers
- Optimal operation on slow-down and stop limits eliminates loss of productivity on speed limit areas and end limits.
- High performance link with PLC systems over Profibus

ICRAS AFD is adjustable frequency drive specially designed for use in travelling and hoisting applications. Both the hardware and software solutions include several special features to ensure optimal performance in crane applications. Digital input signals use AC voltages (from 42 to 240 VAC) instead of normally used 24 VDC. All normally used speed control modes are selectable. Two different auto tuning programs for travelling and hoisting applications are included. Hoist speed supervision system is built inside of the drive as an option module. For detailed information please refer to Technical Data page.

For OEM use ICRAS load sway control can be implemented into many modern inverter drives on the market, for example Yaskawa F7Z.